FILTER PUMPNOP FILTER PUMP Product Guide

NOP FILTER PUMP COOLANT PUMP WITH BUILT-IN FILTRATION SYSTEMHigh Pressure Model (3.0–7.0 MPa) High Pressure Unit for Through-spindle Coolant System

YTH-EP

YTH-EP

Pump
Motor Capacity
Flow Rate
Maximum Pressure
Filtration System

Pump
Motor Capacity
Flow Rate
Maximum Pressure
Filtration System

Fluid Type
Compatibility
Work Material
Compatibility

LINE TYPE

Plunger
2200–3700 W
12–28.8 L/min
7.0 MPa
Turbulence™ filter
Non-water
Water soluble
soluble coolant
coolant
Please consult✓
us

Fluid Type
Compatibility

SteelCast metal

Al

Al-Si

Superalloy

✓

✓

✓

✕

✕

Work Material
Compatibility

Plunger
2200–3700 W
12–28.8 L/min
7.0 MPa
Turbulence™ filter
Non-water
Water soluble
soluble coolant
coolant
Please consult
✓
us

Steel

Cast metal

Al

Al-Si

Superalloy

✓

✓

✓

✕

✕

Medium Pressure Model (1.5–2.0 MPa) Medium Pressure Unit for Through-spindle Coolant System

YTH-ES
YTH-ES

YTH-CT/CS
YTH-CS

Pump
Motor Capacity
Flow Rate
Maximum Pressure
Filtration System

Pump
Motor Capacity
Flow Rate
Maximum Pressure
Filtration System

LINE TYPE

Fluid Type

Trochoid™
750–1500 W
12–28.8 L/min
2.0 MPa
Turbulence™ filter
Non-water
Water soluble
soluble coolant
coolant

Compatibility
Work Material
Compatibility

LINE TYPE

Fluid Type✓✓

Compatibility(Max. kinematic
viscosity: 32 mm2/s)

✓

Steel

Cast metal

Al

Al-Si

Superalloy

✓

✓

✓

✓

✓

Work Material
Compatibility

Trochoid™
750–1500 W
12–28.8 L/min
2.0 MPa
Double-cyclone filter
Non-water
Water soluble
soluble coolant
coolant(Max. kinematic
viscosity: 22 mm2/s)

✕

Steel

Cast metal

Al

✓

✓

✓

Al-Si
Superalloy
CT ✕ CS ✓ CT ✕ CS ✓Low Pressure Model (35–65 m) Large Flow Low Pressure Unit

YTH-CIYTH-GCI(Premium Model)

Pump
Motor Capacity
Flow Rate
Total Pump Head
Filtration System

Impeller
1500–3700 W
150–300 L/min
40–65 mReverse-cyclone filter
Non-water
Water soluble
soluble coolant
coolant

Fluid Type
Compatibility
Work Material
Compatibility

1(Standard Model)

Pump
Motor Capacity
Flow Rate
Total Pump Head
Filtration System
Fluid Type✓

Compatibility(Max. kinematic
viscosity: 22 mm2/s)✓

Impeller
1100–2200 W
70–300 L/min
35–50 mReverse-cyclone filter
Non-water
Water soluble
soluble coolant
coolant

Steel

Cast metal

Al

Al-Si

Superalloy

✓

✓

✓

✓

✓

Work Material
Compatibility✓(Max. kinematic
viscosity: 22 mm2/s)

✓

Steel

Cast metal

Al

Al-Si

Superalloy

✓

✓

✓

✓

✓

CONTENTS
WHAT IS NOP FILTER PUMP?
FEATURES OF NOP FILTER PUMP……………………………………… 3
3 DIFFERENT TYPES OF FILTRATION SYSTEMS……………………… 5
PUMP SELECTION CHART……………………………………………… 7

CALCULATION OF DISCHARGE PRESSURE AND FLOW…………… 8

HIGH PRESSURE UNIT FOR THROUGH-SPINDLE COOLANT SYSTEM

Applications
Machine tool equipped with through spindle coolant system (3.0 MPa up to 7.0
MPa) or jig cleaning nozzle(NC lathe, Machining center)✓

Grinding machine✕Electric discharge machine✕Non-metal cutting machine(Resin, wood, glass)✕

YTH-EP Plunger Type High Pressure Unit (3.0–7.0 MPa)
MODEL NUMBERING SYSTEM………………………………………… 9
FEATURES OF YTH-EP…………………………………………………… 11

FEATURES OF YTH-EP LINE TYPE……………………………………… 13

MEDIUM PRESSURE UNIT FOR THROUGH-SPINDLE COOLANT SYSTEMYTH-ES Trochoid™ Type Medium Pressure Unit (1.5–2.0 MPa)
MODEL NUMBERING SYSTEM………………………………………… 15
FEATURES OF YTH-ES…………………………………………………… 17

FEATURES OF YTH-ES LINE TYPE……………………………………… 20

YTH-CT/CS Trochoid™ Type Medium Pressure Unit (1.5–2.0 MPa)
MODEL NUMBERING SYSTEM………………………………………… 23
FEATURES OF YTH-CT/CS……………………………………………… 25

PERIPHERAL OPTIONS (Inline Filter/Unloading Valve)………………… 28
FEATURES OF YTH-CT/CS LINE TYPE………………………………… 29

LARGE FLOW LOW PRESSURE UNIT

Applications

YTH-CI Large Flow Low Pressure Unit with Built-in Filtration System

Machine tool equipped with through spindle coolant system (2.0 MPa or lower) or
jig cleaning nozzle(NC lathe, Machining center)✓

Grinding machine✕Electric discharge machine✕Non-metal cutting machine(Resin, wood, glass)✕(Head: 40–65 m)
MODEL NUMBERING SYSTEM………………………………………… 31

YTH-GCI Large Flow Low Pressure Unit with Built-in Filtration System(Head: 35–50 m)
MODEL NUMBERING SYSTEM………………………………………… 33
FEATURES OF YTH-CI/GCI……………………………………………… 35

SLUDGE COLLECTION WITH YTH-CI/GCI……………………………… 36
APPLICATION EXAMPLES………………………………………………… 37

YTH WIRE MESH BUCKET (Sludge Collection Bucket)……………… 41

SPECIFICATION TABLES FOR ALL NOP FILTER PUMP SERIESQR CODE LIST……………………………………………………………… 42
SPECIFICATIONS FOR ALL YTH SERIES……………………………… 43

TROUBLESHOOTING GUIDE…………………………………………… 45
WORK MATERIAL COMPATIBILITY TABLES…………………………… 46

Applications
Machine tools(NC lathe, Machining center)✓

Grinding machine✓Electric discharge machine✕Non-metal cutting machine(Resin, wood, glass)▲*Please contact us for further details about ▲.

*Please be sure to read the instruction manual before use.

2

FEATURES OF NOP FILTER PUMP—

Coolant Pump with Built-in Filtration System

YTH-EP (High Pressure)
YTH-ES/CT/CS (Medium Pressure)
More Working Space• You can create more working space by replacing your existing
through spindle coolant unit with NOP filter pump.
• You can retrofit a through spindle coolant system to yourexisting machine simply by installing NOP filter pump.

Less Space Required

Reduction in Filter Maintenance• NOP filter pump can provide various solutions to your filter
maintenance problems. For example, there is a filter on thepipeline to through spindle that needs to be cleaned quite
frequently but you cannot afford to stop your production eachtime just because of this, or you may want to improve theclogging condition in the through spindle pipeline.

Conventional Through Spindle Coolant System
Screen filter

Machine tool
Coolant tank
Supply pump Cyclone filter➊

YTH-EP➋➌

Inline filter

YTH-ES

YTH-CT/CS

All Combined in One

Machine tool3

High/medium
pressure pump

Various Components are

YTH-EP/ES/CT/CS
Screen filter

Coolant tank➍

Clean tank

➊ No Supply Pump
➋ No Cyclone Filter➌ No Inline Filter➍ No Clean Tank

NOP FILTER PUMPYTH-CI/GCI (Large Flow Low Pressure)
Excellent Performance in Sludge Removal in a Coolant Tank
Solution to the Various Problems Around the Coolant Tank

• Cyclone system with large filtration capacity ensures the excellent performance in coolant tank cleaning.
• Substantial reduction in maintenance work due to clogged pipe, damaged work-pieces and frequent machine downtime.
• Easy retrofitting to your existing machine. The sludge problem occurs after you start using a new machine.

Conventional Coolant System

Outlet port

[Pump discharges coolant that contains sludge]

NozzleConventional pump

Coolant tank

YTH-CIYTH-GCI[Pump only discharges filtered clean coolant]

BucketYTH-CI/GCI

Contaminantdrain port

Outlet port

NozzleSludgeCoolant tank

*The sludge in the tank above is justan image for illustration purposes.

43 DIFFERENT TYPES OF FILTRATION SYSTEMS
1 NOP’s Self-developed Filtration System “Turbulence™ Filter”
YTH-EP/YTH-ES
Our special Turbulence™ design generates turbulence around thesurface of filter with 2 wing-shaped vanes rotating around filter andcan wash away sludge from the filter surface continuously.

[Turbulence™ Filter]
Clean coolant
Wire screen filter

Sludge

The turbulence and centrifugal
force release and separate thesludge from the wire screen
filter.

Dirty coolant

Wire screen filter

Turbulence™ filter

Contaminantdrain port
Rotating vane
Fixed vane
Suction impeller
Inlet port

5

NOP FILTER PUMP

2 Combination of 1st Large and 2nd Small Cyclones, “Double-cyclone Filter”
YTH-CT/CS
A proprietary double cyclone system removes sludge.
The first large cyclone removes larger debris, while the second 6 small cyclones remove smaller particles, achieving compactness andhigh filtration performance simultaneously.

The 1st Cyclone (Large)

The 2nd Cyclones (Small)

Supply impeller for2nd cyclones
1st cyclone

Double-cyclone filter

2nd cyclones
Discharge impeller
Inlet port
Contaminantdrain port

3 Reversed-cyclone Filter

YTH-CI/GCIThe compactness of reversed-cyclone design ensures excellent filtration performance and allows installation on the top of coolant tank.
Cone-shaped cyclone unit draws coolant from the tank and filters it and separates into dirty and clean coolant.
Both will be discharged separately from the pump upper area.

[Reversed-cyclone Filter]
Clean Coolant

SludgeThe pump draws coolant
from the tank and filters it
and separates into dirty
and clean coolant.
Both will be discharged
separately from the pumpupper area.

CycloneReversed-cyclone filter

Venting impeller
Inlet port

Coolant in a Tank

6

PUMP SELECTION CHART—Select a Pump by Application
01

Applications

02

Coolant Type03

Operation
Method04

Work Material
Hardness*2

05

OperatingPressure

Through spindle high pressure coolant(Machining center/Lathe)

Low pressure coolant(Machining center/Lathe/Grinding machine)

EP ES CT CS

CI/GCI

Water soluble coolant and
Non-Water soluble coolant

Water soluble coolant

EP ES

CT CS CI/GCIIntermittent（ON/OFF in seconds)

Continuous*1

EP ES

CT CS CI/GCI< HV300≧ HV300< HV300≧ HV300

EP

ES CS

CT

CI/GCI≧ 3.0 MPa

≦ 2.0 MPaEP

ES CT CS

YTH-EP
(P.9)

06

07

YTH-ES(P.15)YTH-CT(P.23)

0.65 MPa(Total Pump Head: ≦ 65 m)

CI/GCIYTH-CS(P.23)YTH-CI/GCI(P.31/P.33)

Select Pump

Expected
Effect● To save the installation space(If replacing with existing high pressureunit)● To reduce swarf size by high pressure● To reduce the maintenance of inline filterin outlet line
● To prevent nozzle clogging● To improve machining accuracy withfiltered clean coolant● To remove sludge in the tank and reduce
maintenance work
● To prevent nozzle clogging● To improve machining accuracy withfiltered clean coolant● To reduce machining error( Po o r s e a t i n g , f r e q u e n t d ow n t i m e ,scratches)*1 Intermittent operation is also possible if an unloading valve is installed.
*2 Work material hardness given in this chart is a guide only. The actual hardness varies depending on components and constituent elements
contained in work materials regardless of HV300. See P.46 “WORK MATERIAL COMPATIBILITY TABLES.”

7

NOP FILTER PUMPCALCULATION OF DISCHARGE PRESSURE AND FLOW

Pump Performance Chart by Tool Holes

This chart is to help you understand discharge performance of your pump by calculating

3 tool holes

the outlet flow rate based on the number of through spindle holes and the diameter of any
one of those holes.
The outlet flow rate can be determined by the tool holes (The number of holes and holediameter) and the outlet pressure.
ExampleWhen your through spindle has 2 holes of Φ1.8 and the outlet pressure is at
2.0 MPa, the flow rate should be approximately 12.0 L/min. (The pump can only
discharge 12.0 L/min at 2.0 MPa, although the pump’s theoretical maximum flowrate is 28.8 L/min.)[How to Use This Chart]

1. First, select a chart page that matches your model of NOP filter pump and the number of holes on your tool.
2. Select a colored area that matches the model number of your NOP filter pump and frequency of your using area.
3. Select a curve that matches a hole diameter of your through spindle.
Finally, you can get the outlet pressure and flow rate by checking a point where curve (hole diameter) and colored area intersect.
*The data of this chart was obtained only under the following conditions and therefore, provided for reference only.
The actual performance is subject to the viscosity of pumped liquid and piping resistance.
Test oil: Water soluble coolant emulsion A1 type 2% Liquid temperature: 20℃.

Sample Chart for NOP Filter Pump YTH-ES with 2 Tool Holes
2.0

φ0.6 φ0.8 φ1.0 φ1.2 φ1.4
φ0.5 φ0.7 φ0.9 φ1.1 φ1.3
φ1.5 φ1.6 φ1.7 φ1.8 φ1.9 φ2.0 φ2.1 φ2.2 φ2.3

φ2.4

0

20

φ2.5

φ2.6

φ2.7

φ2.8

φ2.9

φ3.0

1.8

Discharge Pressure (MPa)

1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0

5

10

➀YTH750-S208 (50 Hz)➃YTH1500-S216 (50 Hz)

15

Discharge Flow Rate (L/min)

25

30

35

➁YTH750-S208 (60 Hz)➄YTH1500-S216 (60 Hz)

For the Other Number of Tool Holes and Pump Models

Scan withyour mobile device !

8

YTH-EP

Received the “2015 JSME Excellent Product Award”

Plunger Type 7.0 MPa High Pressure Unit
Turbulence™ Filter
Special turbulence cleans the filter automatically, rendering the filter clog free.

Plunger Pump/7.0 MPa–3.0 MPa
Piston action pushes fluid at high to medium pressure.

MODEL NUMBERING SYSTEMTOP—YTH ➀ ➁ - ➂ E VD ➃ ➄➀MotorCapacity➂Pump Capacity(Plunger pump)➁Motor Type*1[Standard Motor]
A3: AC 200/200/220/230 V
50/60/60/60 Hz
3 phase electric induction motor(IE3) with CE marking

2200: 2.2 kW
3700: 3.7 kW[Local Motor]
AE: supplied by NOP Germany
AF: supplied by NOP Taiwan
AJ: supplied by NOP Asia
(China)AK: supplied by NOP India
AU/AV: supplied by NOP North
America (USA)P008: 8 cc/rev
P010: 10 cc/rev
P014: 14 cc/rev
P016: 16 cc/rev

E: Filtering
MethodVD:
Relief Valve➃Relief Pressure
Setting*2

Turbulence™
filterExternal
return type70: 7.0 MPa
60: 6.0 MPa
35: 3.5 MPa
30: 3.0 MPa➄Filter
Rating

B: 50 μm*3
C: 20 μm*4

*1 For further details about the local motors, please contact our overseas branch or subsidiaries.
*2 See P.43 to select a model that satisfies your desired relief valve set pressure.
*3 Please consult us if you use non-water soluble coolant as they can only be used in limited conditions.
*4 20 μm filter can not be applied to non-water soluble coolant.

SPECIFICATIONS
Motor Capacity(kW)

Flow Rate (L/min)
50 Hz/60 Hz

Maximum Pressure (MPa)50 Hz/60 Hz

Approximate Weight(kg)

YTH2200A3-P008EVD70*

2.2

12.0/14.4

7.0/7.0

53

YTH2200A3-P010EVD**

2.2

15.0/18.0

7.0/6.0

53

YTH2200A3-P016EVD**

2.2

24.0/28.8

3.5/3.0

53

YTH3700A3-P014EVD70*

3.7

21.0/25.2

7.0/7.0

62

YTH3700A3-P016EVD**

3.7

24.0/28.8

7.0/6.062

Model*Suffix of the model number “**” each indicates ➃Relief Pressure Setting and ➄Filter Rating.

9YTH-EPDIMENSIONS

Terminal Box Detail View

(Typical/Motor Type: A3)

Direction of rotation

TB

Earth termianl mark

Earth terminal M5

U

Screw size M4

U V W

V W

16 14 16

Screw size M5

θ(°)

G 3/4

H

M

φD

L
38

54

26

12

26

Relief valve

φ250

Outlet port
Rc 3/4

320.3

260.3

Contaminant drain port
Rc 3/4

Inlet port
(Perforated metal)

φ180

60
Minimum
liquid level

φ126
φ140
9 0°

27.5°

P.C.D.160
4-Φ9 Drill Through
59

Model

Vent

(mm)

L

H

M

φD

753.3

433

311

202

θ(°)

TB

YTH2200A3-P008EVD70*
YTH2200A3-P010EVD**

45

YTH2200A3-P016EVD**
YTH3700A3-P014EVD70*
YTH3700A3-P016EVD**

168

768.3

448

*Drawings in PDF format can be downloaded from NOP filter pump website.

326

243

187

https://filter-pump.nopgroup.com/eng

10

FEATURES OF YTH-EP
An All-in-one, High-to-medium Pressure
Coolant UnitHigh Efficiency Plunger Pump

All components of a coolant system are consolidated into a sin-

• Compatible fluid typegle pump. No inline and suction filters are required. The saved
space expands the available plant space, resulting in a higher– Water soluble coolant (Please consult us if you use non-water soluble coolant).

production efficiency.

– Incompatible with lubricant oils, fuel oils.

• Maximum operating pressure: 7.0 MPa.

– Incompatible with clear water, demineralized water, aqueous solutions and viscous fluids without rust-preventive
property, corrosive fluids, solvents, and any cutting fluidsthat contain active sulfur.

• Maximum flow rate: 28.8 liters/min.
• No suction filter is required.

• Relief valve is built into the pump.

• No inline filter is required.
• No plumbing is required to interconnect various components.

Plunger Pump

Turbulence™ Filter

Contaminant drain port

Our special Turbulence™ design generates turbulence aroundthe surface of filter with 2 wing-shaped vanes rotating around

Coolant outlet port

Pump section

Plungerfilter and can wash away sludge from filter surface continuously.

Wire screen filter
Clean coolant
Fixed vane

Rotating vane

Turbulence™ filter

Rotating vane

Fixed vane
Wire screen filter

Suction impeller
Inlet port
Sludge

7.0

The turbulence and centrifugal force release and separate the sludge from themesh filter.

6.0

3.5

3.0

Filter Rating (Nominal value)

Dirty coolant

Suction strainer

3 mm(Solids larger than this must be removed
from the tank.)

Filter

20 µm, 50 µm*Please consult us if you use non-water soluble coolant.

11

YTH-EPSAMPLE SYSTEM LAYOUT
To machine tool
Pressure gauge(0‒10.0 MPa)

Check valve
0.05‒0.1 MPa(Non-return valve)

Separator, conveyor, etc.

Coupler<3m

Minimum
liquid level
60 mm

Spare pipe:
for air
bleeding.

Screen filter #18
Dirty coolant liquid returned
from machine tool.

> 1 mmClean coolant:
for backwash.

Outlet port
Rc 3/4

Contaminant drain port Rc 3/4
Drain piping: Lifting height < 1 m
Length (horizontal) < 3 m<1m

Spare pipe:
for backwash.

YTH-EP

Lower the height of the pipe under the minimum water level at least once on the path.
Otherwise, air may get into the system soonafter the pump operation is stopped.

Please be sure to readthe instruction manual
before use.

Scan withyour mobile device !

PERFORMANCE CURVES
Water Soluble Coolant [General Performance]
Test oil: JIS K2241 A3 solution containing 2% Water soluble cutting fluid.

YTH-EP008

YTH-EP014

YTH-EP010

YTH-EP016

50 Hz
P-Q Curve

25
20
15
10
5
0

0

1

2

3

4

Required Power

3.5

Pump shaft power (kW)Flow rate (L/min)30

5Pressure (MPa)

6

7

3.0
2.5
2.0
1.5
1.0
0.5
0

8

0

1

2

3

4

5

Pressure (MPa)

6

7

8

6

7

8

60 Hz
P-Q Curve

25
20
15
10
5
0

0

1

2

3

4

Required Power

3.5

Pump shaft power (kW)Flow rate (L/min)30

5Pressure (MPa)

6

7

8

3.0
2.5
2.0
1.5
1.0
0.5
0

0

1

2

3

4

5

Pressure (MPa)12

FEATURES OF YTH-EP LINE TYPE*The model number of Line type ends with capital letter “L.” The pump specification is the same as YTH-EP.

NOP Filter Pump External Type
Unlike normal type that can only be installed upon a coolant tank, this external type can beinstalled independently in a distant place with an extension pipe.
Alteration of tank cover is no longer necessary, allowing quick and easy retrofitting.

Coolant liquid that
contains sludge

BucketSuctionpipe

To machine tool

Sludge*The photo is for illustration purposes only.
For the actual appearance, please referto the drawing on P.14.

Coolant tank

SAMPLE SYSTEM LAYOUT

Parts List

3
Outlet port
Rc 3/4
4

7

6

Contaminantdrain port
Rc 3/4
Drain port
φ10 × Rc 1/8

Item
No.

Description

Qty.

Hose size(ID × OD)

Hose nipple

Note

➀

Suction strainer (ASSY)

1—

φ32 × R1·1/4

Insert a screen filter to ensure that pump doesn’t directly suck foreign objects
larger than the size of strainer perforations.
Secure the strainer to the tank to prevent air suction.

➁

Suction hose (3m)1

φ32 × φ41

(φ32 × R1·1/4)

The hose should be as short as possible with minimum number of bends.

➂

Contaminant drain hose (3m)1

φ19 × φ26

(φ19 × R 3/4)

Lower the height of the hose under the water level at least once on the path as illustrated below to prevent air from flowing back into the system.
Do not restrict the flow to 20 L/min or lower.
The hose outlet should be secured as far away as possible from the strainer.

➃

Drain tube (3m)1

φ7.5 × φ10(φ10 × R 1/8)
(One touch joint)➄

Hose clamp (φ32)

2

—

—

Tighten the hose clamp securely to prevent leaks.

➅

Hose clamp (φ19)

2

—

—

Tighten the hose clamp securely to prevent leaks.

➆

Tube insert (φ10)

1

—

—

➇

Spare hose for air bleeding (3m)1

φ19 × φ26

(φ19 × R 1/2)➈

Spare coupler for air bleeding(ASSY)

1—

φ19 × R 1/2

Release the liquid from contaminant drain port in open atmosphere.
(Make sure that the hose-end does not touch the liquid surface.)
The liquid from the drain hose will drop with its own weight, so the hose should
be as short as possible with minimum number of bends.

Secure the tube insert tightly to prevent leaks.
Use this only when performing air-bleeding on the first run.
(It will become unnecessary once the pump has primed.)
Use this only when performing air-bleeding on the first run.
(It will become unnecessary once the pump has primed.)

YTH-EPTo machine tool
<3m

Pump Side View
from Arrow “A” Direction<1m

Drain piping: Lifting height < 1 m
Length (horizontal) < 3 m
3

9

BucketCheck valve(Non-return valve)
0.05–0.1 MPa
Outlet port
Rc 3/4Totank

Dirty coolant
liquid returned
from machine
tool.

Inlet port
Rc 1∙1/4
2

5

1

Lower the height of the hose under thewater level at least once on the path.

*See P.21 for the dimensions of suction strainer.

Please be sure to readthe instruction manual
before use.

13

A

6

4

SludgeScreen filter #18
Make sure that the hose-end is notin contact with the liquid surface.

8* High pressure hose in the outlet
line shall be provided by users.
(Recommended size: ≧ 1/2)

*The accessories included in themodels for overseas may be different.
Please contact our local distributor for
further details.

Scan withyour mobile device !

YTH-EP LINE TYPEDIMENSIONS

Terminal Box Detail View

(Typical/Motor Type: A3)

Earth termianl mark

Earth terminal M5
Screw size M4

U

U V W

V W

16 14 16

Screw size M5

Direction of rotation

TB

350
310

G 3/4

θ(°)
310
350
φ250
φD

M

Contaminantdrain port
φ19 Hose nipple
Pressuregauge

Check valve(Non-return
valve)

38
54

26

Seal drain
φ10 Tube fittingL

2-M6 × 1
Optional installation
position

40 31

160

26

Vacuumgauge

Relief valve

Nipple for
air-bleeding

Outlet port
Rc 3/4440562

2-M10 × 1.5
Mountinghole forpipe support

Check valve(Non-return
valve)

Drain valve
Rc 1/2(Normally closed)

Inlet port
φ32 Inlet hose nipple

(mm)
Model

L

M

φD

873

311

202

θ(°)

TB

YTH2200A3-P008EVD70CL
YTH2200A3-P010EVD*CL

135

YTH2200A3-P016EVD*CLYTH3700A3-P014EVD70CL
YTH3700A3-P016EVD*CL

168

888

326

*Drawings in PDF format can be downloaded from NOP filter pump website.

243

187

https://filter-pump.nopgroup.com/eng

14

YTH-ES

Received the “2015 JSME Excellent Product Award”

Trochoid™ Type Medium Pressure Unit
Turbulence™ Filter
Special turbulence cleans the filter automatically, rendering the filter clog free.

Trochoid™ pump/2.0 MPa, 1.5 MPa
A rotor turning in a trochoidal curve generates pressure to suck and discharge fluid.
This is an extremely efficient self-priming pump.

MODEL NUMBERING SYSTEMTOP—YTH ➀ ➁ - ➂ E VD ➃ ➄➀MotorCapacity➂Pump Capacity(Trochoid™ pump)➁Motor Type*1

E: Filtering
MethodVD:
Relief Valve➃Relief Pressure
Setting*2

Turbulence™
filterExternal
return type

20: 2.0 MPa
15: 1.5 MPa➄Filter
Rating[Standard Motor]
A3: AC 200/200/220/230 V
50/60/60/60 Hz
3 phase electric induction motor(IE3) with CE marking
750: 0.75 kW
1500: 1.5 kW[Local Motor]
AE: supplied by NOP Germany
AF: supplied by NOP Taiwan
AJ: supplied by NOP Asia
(China)AK: supplied by NOP India
AU/AV: supplied by NOP North
America (USA)S208: 8 cc/rev
S216: 16 cc/rev

B: 50 μm
C: 20 μm*3

*1 For further details about the local motors, please contact our overseas branch or subsidiaries.
*2 See P.43 to select a model that satisfies your desired relief valve set pressure.
*3 20 μm filter can not be applied to non-water soluble coolant.

SPECIFICATIONS
Motor Capacity(kW)

Flow Rate (L/min)
50 Hz/60 Hz

Maximum Pressure (MPa)50 Hz/60 Hz

Approximate Weight(kg)

YTH750A3-S208EVD15*

0.75

12.0/14.4

1.5/1.5

34

YTH1500A3-S216EVD**

1.5

24.0/28.8

2.0/2.039

Model*Suffix of the model number “**” each indicates ➃Relief Pressure Setting and ➄Filter Rating.

15

YTH-ESDIMENSIONS

Terminal Box Detail View

(Typical/Motor Type: A3)

Earth termianl markU V W

Direction of rotation

θ(°)

Earth terminal M5

U

Screw size M4

V W

16 14 16

Screw size M5
G 3/4

TB
M

φD

H

Relief valve

Drain port
Rc 1/4 (Plug)

Outlet port
Rc 3/4

W

C

Q

26

12

L

φ200

B

9

30
（13.7）

Inlet port
(Perforated metal)

60
Minimum
liquid level

φ140
φ180

27.5°

139.5
43.5
R 12

Return pipe

Return pipe

68
98

90°

4-Φ9
Drill Through(For mounting bolts)

Contaminant drain port
Rc 1/2

Vent

16

G 3/4

8

13

2.

5

45°

P.C.D160

(mm)
Model

L

B

C

W

Q

H

M

φD

θ(°)

TB

YTH750A3-S208EVD15*

638.8

274.8

93.5

214.8

20

364

253.5

170

45

144

YTH1500A3-S216EVD**

678.3

294.8

113.5

234.8

40

383.5

273

202

45

168

*Drawings in PDF format can be downloaded from NOP filter pump website.

https://filter-pump.nopgroup.com/eng

16

FEATURES OF YTH-ES
An All-in-one, Medium Pressure
Coolant UnitHigh Efficiency Trochoid™ Pump

All components of a coolant system are consolidated into a sin-

• Compatible fluid typegle pump. No inline and suction filters are required. The saved– Water soluble coolant, non-water soluble coolant.

space expands the available plant space, resulting in a higher– Incompatible with lubricant oils, fuel oils.

production efficiency.

– Incompatible with clear water, demineralized water, aqueous solutions and viscous fluids without rust-preventive
property, corrosive fluids, solvents, oil-based materials.

• Maximum operating pressure: 2.0 MPa.
• Maximum flow rate: 28.8 liters/min.

• Relief valve is built into the pump.

• No suction filter is required.
• No inline filter is required.
• No plumbing is required to interconnect various components.

Trochoid™ Pump
Outlet port

Turbulence™ Filter

Pump section
Trochoid rotor

Balance plate
Wire screen filter

Our special Turbulence™ design generates turbulence aroundthe surface of the filter with 2 wing-shaped vanes rotating

Contaminant drain port

around the filter and can wash away sludge from the filter surface continuously.

Rotating vane

Turbulence™ filter

Fixed vane
Suction impeller

Clean coolant
Inlet port

Rotating vane
Fixed vane

Wire screen filter

2.0

Sludge

The turbulence and centrifugal force release and separate the sludge from themesh filter.

Dirty coolant

17

1.5

Filter Rating (Nominal value)
Suction strainer

3 mm(Solids larger than this must be removed
from the tank.)

Filter

20 µm, 50 µm

YTH-ES

Wear-resistant structure

YTH-ES Type (Wear-resistant Model)[Trochoid rotor]

For its special wear resistant structure, YTH-ES can be installed
on coolant tanks of machines that generate hard and abrasive
swarf.
• Balance Plate– Pump generates inner pressure to press the balance plate
toward the Trochoid rotor side, which helps in reducing theclearance created by wear on rotor side and thereby minimize the pressure drop, ensuring desired performance fora longer time.

Trochoid rotor side

[Balance plate]• Shaft and Bearing Reinforcement– Improved wear resistance by employing sprayed ceramicon shaft bearing area and use of ceramic bearing.

Innerpressure

Minimize the pressure drop
due to wear by boosting up
the rotor side with pumpinner pressure.

• Double Seal & Cartridge System– Seal area is reinforced to prevent leakage and cartridge system ensures ease of replacement.

SAMPLE SYSTEM LAYOUT
Check valve 0.05–0.1 MPa(Non-return valve)

To machine tool

YTH-ES
Spare pipe:
for backwash.

Pressure gauge(0–5.0 MPa)

Coupler

Separator, conveyor, etc.
<3m

Contaminant drain port Rc 1/2
Drain piping: Lifting height < 1 m
Length (horizontal) < 3 m

Clean coolant:
for backwash.

> 1 mmOutlet port
Rc 3/4<1m

Minimum
liquid level
60 mm

Spare pipe:
for air
bleeding.

Screen filter #18
Dirty coolant liquid returned
from machine tool.

Lower the height of the pipe under the minimum water level at least once on the path.
Otherwise, air may get into the system soonafter the pump operation is stopped.

Please be sure to readthe instruction manual
before use.

Scan withyour mobile device !

18

PERFORMANCE CURVES
Water Soluble Coolant [General Performance]

YTH-ES208

Test oil: JIS K2241 A3 solution containing 2% Water soluble cutting fluid.

YTH-ES216

50 Hz
P-Q Curve

25
20
15
10
5
0

0

0.5

1.0

1.5

Pressure (MPa)

Required Power

1.5

Pump shaft power (kW)Flow rate (L/min)

30

2.0

1.25
1.0
0.75
0.5
0.25
0

2.5

0

0.5

1.0

1.5

Pressure (MPa)

2.0

2.5

2.0

2.5

2.0

2.5

2.0

2.5

60 Hz
P-Q Curve

25
20
15
10
5
0

0

0.5

1.0

1.5

Pressure (MPa)

Required Power

1.5

Pump shaft power (kW)Flow rate (L/min)

30

2.0

1.25
1.0
0.75
0.5
0.25
0

2.5

0

Spindle Oil [General Performance]

0.5

1.0

1.5

Pressure (MPa)YTH-ES208

Test oil: ISO VG2 equivalent.

YTH-ES216

50 Hz
P-Q Curve

25
20
15
10
5
0

0

0.5

1.0

1.5

Pressure (MPa)

Required Power

1.5

Pump shaft power (kW)Flow rate (L/min)

30

2.0

1.25
1.0
0.75
0.5
0.25
0

2.5

0

0.5

1.0

1.5

Pressure (MPa)60 Hz
P-Q Curve

25
20
15
10
5
0

19

0

0.5

1.0

1.5

Pressure (MPa)

Required Power

1.5

Pump shaft power (kW)Flow rate (L/min)

30

2.0

2.5

1.25
1.0
0.75
0.5
0.25
0

0

0.5

1.0

1.5

Pressure (MPa)YTH-ES LINE TYPEFEATURES OF YTH-ES LINE TYPE*The model number of Line type ends with capital letter “L.” The pump specification is the same as YTH-ES.

NOP Filter Pump External Type
Unlike normal type which can only be installed upon a coolant
tank, this external type can be installed independently in a distant place with an extension pipe.
Alteration of tank cover is no longer necessary, allowing quick
and easy retrofitting.

BucketCoolant liquid that
contains sludge

Suctionpipe

To machine tool

SludgeCoolant tank

*The photo is for illustration purposes only.
For the actual appearance, please referto the drawing on P.22.

20

SAMPLE SYSTEM LAYOUT
Drawing of Suction Strainer

Outlet port
Relief valve
return port
φ12 × R 1/4

5

8

4

8

57.6

Drain port
φ12 × R 1/4

φ138.6

YTH-ES
Pump Side View from Arrow “A” Direction

To machine tool

<3m
Drain piping: Lifting height < 1 m
Length (horizontal) < 3 m
3Contaminant drain port
Rc 1/2

7

Bucket4

SludgeOutlet port
Rc 3/4To
tank

Screen filter #18

6

Make sure the hose-end is notin contact with liquid surface.

2

1

Check valve(Non-return valve)
0.05–0.1 MPa

5<1m

Dirty coolant
liquid returned
from machine
tool.

A

*High pressure hose in the outlet
line shall be provided by users.
(Recommended size: ≧ 1/2)

Inlet port
Rc 1∙1/4
Lower the height of the hose under the water level at least once on the path.
7

9

10

*The accessories included in the models for overseas may be different. Please contact our local distributor for further details.
Parts List
Item
No.

Description

Qty.

Hose size(ID × OD)

Hose nipple

Note

➀

Suction strainer (ASSY)

1—

φ32 × R 1⋅1/4

Insert a screen filter to ensure that pump doesn’t directly suck foreign
objects larger than the size of strainer perforations.
Secure the strainer to the tank to prevent air suction.

➁

Suction hose (3m)1

φ32 × φ41

(φ32 × R 1⋅1/4)

The hose should be as short as possible with minimum number of bends.

➂

Contaminant drain hose (3m)1

φ19 × φ26

(φ19 × R 1/2)➃

Relief valve discharge hose
(3m)

1

φ12 × φ18

(φ12 × R 1/4)➄

Drain hose (3m)1

φ12 × φ18

(φ12 × R 1/4)➅

Hose clamp (φ32)

2

—

—

Tighten the hose clamp securely to prevent leaks.

➆

Hose clamp (φ19)

2

—

—

Tighten the hose clamp securely to prevent leaks.

➇

Hose clamp (φ12)

1

—

—

Tighten the hose clamp securely to prevent leaks.

➈

Spare hose for air bleeding(3m)

1

φ19 × φ26

(φ19 × R 1/2)

Use this only when performing air-bleeding on the first run.
(It will become unnecessary once the pump has primed.)➉

Spare coupler for air bleeding(ASSY)

1—

φ19 × R 1/2

Use this only when performing air-bleeding on the first run.
(It will become unnecessary once the pump has primed.)

Lower the height of the hose under the water level at least once on thepath as illustrated below to prevent air from flowing back into the system.
Do not restrict the flow to 20 L/ min or lower.
To prevent foam generation, make sure that the hose-end is secured
underwater and as far as possible from pump suction area.
Release the liquid from contaminant drain port in open atmosphere.
(Make sure that the hose-end does not touch the liquid surface.)
The liquid from the drain hose will drop with its own weight, so the hoseshould be as short as possible with minimum number of bends.

Please be sure to readthe instruction manual
before use.

21

Scan withyour mobile device !

YTH-ES LINE TYPEDIMENSIONS

Terminal Box Detail View

(Typical/Motor Type: A3)

Earth termianl mark

Earth terminal M5

U

Screw size M4

Direction of rotation

U V W

V W

16 14 16

Screw size M5
350

G 3/4

310

310

350

θ (°)

TB

Contaminantdrain port
φ19 Hose nipple
φD

H

M

Pressure gauge

Vacuum gauge
Relief valve

160

L

26

34

φ200
Check valve(Non-return valve)

Relief valve
discharge hose
φ12 Hose nipple

Drain
φ12 Hose nipple
9Outlet port Rc 3/4

B

2-M10 × 1.5
Mounting holefor pipe support

Check valve(Non-return valve)

Nipple for air-bleeding

Drain valve
Rc 1/2(Normally closed)

Inlet port
φ32 Inlet hose nipple

(mm)
Model

L

B

H

M

φD

θ(°)

TB

YTH750A3-S208EVD15*L

756

392

364

253.5

170

45

144

YTH1500A3-S216EVD**L

823.5

440

383.5

273

200

45

168

*Drawings in PDF format can be downloaded from NOP filter pump website.

https://filter-pump.nopgroup.com/eng

22

YTH-CT/CS
Trochoid™ Type Medium Pressure Unit
Double-cyclone filter
Two layers of double cyclones (one large cyclone and six small cyclones) remove sludge
from the coolant fluid.

Trochoid™ pump/2.0 MPa, 1.5 MPa
A rotor turning in a trochoidal curve generates pressure to suck and discharge fluid.
This is an extremely efficient self-priming pump.

MODEL NUMBERING SYSTEMTOP—YTH ➀ ➁ - ➂ C VD ➃➀Motor Capacity➁Motor Type*1[Standard Motor]
A3: AC 200/200/220/230 V
50/60/60/60 Hz
3 phase electric induction motor(IE3) with CE marking

750: 0.75 kW
1500: 1.5 kW[Local Motor]
AE: supplied by NOP Germany
AF: supplied by NOP Taiwan
AJ: supplied by NOP Asia
(China)AK: supplied by NOP India
AU/AV: supplied by NOP North
America (USA)➂Pump Capacity(Trochoid™ pump)

C: Filtering
MethodVD:
Relief Valve➃Relief Pressure
Setting*2

T208: 8 cc/rev
T216: 16 cc/rev
S216: 16 cc/rev

Double cyclone

External returntype

20: 2.0 MPa
15: 1.5 MPa*1 For further details about the local motors, please contact our overseas branch or subsidiaries.
*2 The valve set pressure for model S216 is fixed at 2.0 MPa. 1.5 MPa is unavailable.

SPECIFICATIONS
Motor Capacity(kW)

Flow Rate (L/min)
50 Hz/60 Hz

Maximum Pressure (MPa)50 Hz/60 Hz

Approximate Weight(kg)

YTH750A3-T208CVD*

0.75

12.0/14.4

2.0/2.0

34

YTH1500A3-T216CVD*

1.5

24.0/28.8

2.0/2.0

39

YTH1500A3-S216CVD20

1.5

24.0/28.8

2.0/2.039

Model*Suffix of the model number “*” indicates ➃Relief Pressure Setting.

23

YTH-CT/CS
DIMENSIONS

Terminal Box Detail View

(Typical/Motor Type: A3)

Earth termianl markU V W

Direction of rotation

θ(°)

Earth terminal M5
Screw size M4U

V W

16 14 16

Screw size M5
G 3/4

TB
M

φD

Drain port
Rc 1/4

Outlet port
Rc 3/4

Q

26

L

φ200

12

H

Relief valve

B

C

W

Contaminantdrain port
Rc 1/2(13.7)

Inlet port
(Perforated metal)

60
Minimum
liquid level

φ140
φ180

139.5

68

98

43.5

90°

27.5°

Return pipe

Drain port
Rc 1/4
P.C.D.160
4-Φ9 Drill Through

(mm)
Model

L

B

C

W

Q

H

M

φD

θ(°)

TB

YTH750A3-T208CVD*

599.7

235.7

206.7

175.7

20

364

253.5

170

45

144

YTH1500A3-T216CVD*

639.2

255.7

226.7

195.7

40

383.5

273

200

45

168

YTH1500A3-S216CVD20

643.7

260.2

231.2

200.2

40

383.5

273

200

45

168

*Drawings in PDF format can be downloaded from NOP filter pump website.

https://filter-pump.nopgroup.com/eng

24

FEATURES OF YTH-CT/CS
All-in-one Medium-pressure
Coolant Pump

High Efficiency Trochoid™ Pump

All components of a coolant system are consolidated into a sin-

CT employs a Trochoid™ pump which excels in fluid control

gle pump. The saved space expands the available plant space,efficiency. The double-cyclone system sorts out sludge andresulting in a higher production efficiency.

enables direct connection to the coolant tank.

• Maximum operating pressure: 2.0 MPa.

• Compatible fluid type

• Maximum flow rate: 28.8 liters/min.

– Water soluble coolant.

• No suction filter is required.

– Incompatible with non-water soluble coolant, lubricant oils,
fuel oils.

• No plumbing is required to interconnect various components.

– Incompatible with clear water, demineralized water, aqueous solutions and viscous fluids without rust-preventive
property, corrosive fluids, solvents, oil-based materials.

Double-cyclone Filter

1+6• Relief valve is built into the pump.

A proprietary double-cyclone system removes sludge.
The first cyclone removes larger debris, while the second
cyclones remove smaller particles. The inline filter cleaning cycle

Trochoid™ Pump

is extended by 24 times.
*Sludge larger than 20 μm can be removed.
(When using water-soluble coolant fluid.)
The first cyclone(large)The second cyclones(small)Outlet port

Pump section

Trochoid™ rotor
Supply impeller for2nd cyclones
Double-cyclone filter

1st cyclone
2nd cyclones
Discharge impeller
Inlet port
Contaminantdrain port

2.0

Cleaning of inline filter is reduced to once a month (On average)

1.5

Conventional
centrifugal
pump
NOP
filter pump

Filter Rating (Nominal value)
Daily

24 times

Approx. 1 month

Suction strainer

3 mm(Solids larger than this must be removed
from the tank.)

Filter

Water-soluble coolant fluid
50 μm: 95% (Specific weight 2.7)
100 μm: 99.9% (Specific weight 2.7)

*Be sure to install an unloading valve in the outlet pressure line if
running the pump intermittently. (See P.28)

25

YTH-CT/CS

Wear-resistant structure

YTH-CS Type (Wear-resistant Model)[Trochoid rotor]

For its special wear resistant structure, YTH-CS can be installed
on coolant tanks of machines that generate hard and abrasive
swarf that YTH-CT cannot handle.
• Balance Plate– Pump generates inner pressure to press the balance plate
toward the Trochoid rotor side, which helps in reducing theclearance created by wear on rotor side and thereby minimize the pressure drop, ensuring desired performance fora longer time.

Trochoid rotor side

[Balance plate]• Shaft and Bearing Reinforcement

Inner
pressure– Improved wear resistance by employing sprayed ceramicon shaft bearing area and use of ceramic bearing.

Minimize the pressure drop
due to wear by boosting up
the rotor side with pumpinner pressure.

• Double Seal & Cartridge System– Seal area is reinforced to prevent leakage and cartridge system ensures ease of replacement.

SAMPLE SYSTEM LAYOUT
Check valve
0.05–0.1 MPa(Non-return valve)

Unloading valve (Solenoid Valve)
YTH-CT/CS itself is not designed to run intermittently. So, bypass the coolant as illustrated
below while the pump is unloaded. The relief valve built in this pump is not intended to use
for unloading.
Supply air

Pressure gauge
0–5.0 MPa

Inline filter

YTH-CT/CS
Separator, conveyor, etc.

> 1 mmMinimum
liquid level
60 mm

<3m

<1m

To machine tool

Screen filter #18
Dirty coolant liquid returned
from machine tool.

Lower the height of the pipe under the minimum
water level at least once on the path. Otherwise, air
may get into the system soon after the pump operation is stopped.

Outlet port
Rc 3/4

Please be sure to readthe instruction manual
before use.

Contaminant drain port Rc 1/2
Drain piping: Lifting height < 1 m
Length (horizontal) < 3 m(For CT)

Scan withyour mobile device !

(For CS)26

PERFORMANCE CURVES (YTH-CT)
Water Soluble Coolant [General Performance]

YTH-CT208

Test oil: JIS K2241 A3 solution containing 2% Water soluble cutting fluid.

YTH-CT216

50 Hz
P-Q Curve

25
20
15
10
5
0

0

0.5

1.0

1.5

Pressure (MPa)

Required Power

1.5

Pump shaft power (kW)Flow rate (L/min)

30

2.0

1.25
1.0
0.75
0.5
0.25
0

2.5

0

0.5

1.0

1.5

Pressure (MPa)

2.0

2.5

2.0

2.5

2.0

2.5

2.0

2.5

60 Hz
P-Q Curve

25
20
15
10
5
0

0

0.5

1.0

1.5

Pressure (MPa)

Required Power

1.5

Pump shaft power (kW)Flow rate (L/min)

30

2.0

1.25
1.0
0.75
0.5
0.25
0

2.5

0

0.5

1.0

1.5

Pressure (MPa)PERFORMANCE CURVES (YTH-CS)
Water Soluble Coolant [General Performance]
Test oil: JIS K2241 A3 solution containing 2% Water soluble cutting fluid.

YTH-CS216

50 Hz
P-Q Curve

25
20
15
10
5
0

0

0.5

1.0

1.5

Pressure (MPa)

Required Power

1.5

Pump shaft power (kW)Flow rate (L/min)

30

2.0

1.25
1.0
0.75
0.5
0.25
0

2.5

0

0.5

1.0

1.5

Pressure (MPa)60 Hz
P-Q Curve

25
20
15
10
5
0

27

0

0.5

1.0

1.5

Pressure (MPa)

Required Power

1.5

Pump shaft power (kW)Flow rate (L/min)

30

2.0

2.5

1.25
1.0
0.75
0.5
0.25
0

0

0.5

1.0

1.5

Pressure (MPa)Peripheral Options

INLINE FILTER
Accessories
No.

Qty

Drawing No./Model No.

➀

Inline filter

1

G-UL-04A-20UW-IK

➁

1

➃

Filter bracket for CS-L
Pressure rubber hose 1/2 × 500 mm with metal fitting on bothsides
Hose adapter 15 A × G15 Elbow

2➄

Hexagonal bolt M8 × 16 SCM trivalent chromate

4➂Part Name

Manufacturer

Filter Specification

Taisei Kogyo Co.,Ltd.

1

5

2

Water-glycol fluid, etc.

Connection Port
Nominal Filtration
RatingRc 1/2
20 μm

Relief Valve

Visual type
(Working pressure: 0.3 MPa)
Non

Surge Suppressor

Installed

Mating Flange

NonMagnetMaximum Operating
Pressure
Element Differential
Pressure ResistanceStandard Flow Rate

Non

Indicator*The parts ➁, ➂, ➃, ➄ are all included in the product.

4

Compatible Liquid

5
Indicator (Visual type)1IN

3.5 MPa
0.7 MPa
50 L/minOutlet PortOUT

3UNLOADING VALVE
Accessories
No.

Part Name

Qty

Drawing No./Model No.

Manufacturer➀

Unloading valve

1

CVSE3-15A-35-B2GS-3

CKD➁

High pressure nipple 15 A

1➂

Hose nipple Φ19 × 15 A

2

A B
Valve JIS MarkC*The parts ➁, ➂ are all included in the product.

Electrical Specifications

1

3

P

2

Required Power

2.0 W

Heat Resistance Class

130 (B)

Protection Level

IPX5 (IEC 529)

Terminal box
Air supply port (P)Outlet port (A)

OUT

IN

Inlet port (C)UNLOAD

Unloading port (B)28

FEATURES OF YTH-CS LINE TYPE*The model number of Line type ends with capital letter “L.” The pump specification is the same as YTH-CS.
Unlike normal type which can only be installed upon a coolant

NOP Filter Pump External Typetank, this external type can be installed independently in a distant place with an extension pipe.
Alteration of tank cover is no longer necessary, allowing quick
and easy retrofitting.

SAMPLE SYSTEM LAYOUT

Drawing of Suction Strainer

Outlet port
Relief valve
Return port
φ12 × R 1/4

5

8

4

8

57.6

Drain port
φ12 × R 1/4

φ138.6The height of entire hose must be lower than the height of drain port.
8

9

9

8

3

5

6

4

Returned fromrelief valve
φ12 × R 1/4

YTH- CS-L
To machine tool

Returned from
unloading valve
φ19 × R 1/2

Drain
φ12 × R 1/4

BucketCheck Valve0.05–0.1 MPa

SludgeOutlet Port
Rc 3/4

Coolant
returnedfrommachinetool.
Screen filter #18

1

7

Contaminant
Drain Port
Rc 1/2

2Make sure the hose-end is notin contact with liquid surface.

Inlet Port
Rc 1‧1/4*High pressure hose in the outlet
line shall be provided by users.
(Recommended size: ≧ 1/2)

Lower the height of the hose under the water level at least once on the path.

*The accessories included in the models for overseas may be different. Please contact our local distributor for further details.
Parts List
Item
No.

Description

Qty.

Hose size(ID × OD)

Hose nipple

Note

➀

Suction strainer1—

R 1⋅1/4➁

Suction hose (3m)1

φ32 × φ41

R 1⋅1/4

Insert a screen filter to ensure that pump doesn’t directly suck foreign objects larger
than the size of strainer perforations.
Secure the strainer to the tank to prevent air suction.
The hose should be as short as possible with minimum number of bends.

➂

Contaminant drain hose (3m)1

φ19 × φ26

R 1/2

Do not restrict the flow to 20 L/ min or lower.

➃

Unloading valve discharge hose (3m)1

φ19 × φ26

R 1/2

The hose should be as short as possible with minimum number of bends.

➄

Relief valve discharge hose (3m)1

φ12 × φ18

R 1/4

To prevent foam generation, make sure that the hose-end is secured underwaterand as far as possible from pump suction area.

➅

Drain hose (3m)1

φ12 × φ18

R 1/4

➆

Hose clamp (φ32)

2

—

—

Release the liquid from contaminant drain port in open atmosphere.
(Make sure that the hose-end does not touch the liquid surface.)
The liquid from the drain hose will drop with its own weight, so the hose should be
as short as possible with minimum number of bends.
Tighten the hose clamp securely to prevent leaks➇

Hose clamp (φ19)

2

—

—

Tighten the hose clamp securely to prevent leaks➈

Hose clamp (φ12)

2

—

—

Tighten the hose clamp securely to prevent leaks

Please be sure to readthe instruction manual
before use.

29

Scan withyour mobile device !

YTH-CS LINE TYPEDIMENSIONS

Terminal Box Detail View

(Typical/Motor Type: A3)

Earth termianl mark

Earth terminal M5

U

Screw size M4

U V W

V W

16 14 16

Screw size M5
G 3/4

Direction of Rotation

16

8

350
310

13

2.

5

G 3/4

258

Plate that indicatesthe direction of rotation

φ200

383.5

Pressure gauge
Nipple for air-bleeding

φ25

Check valve

283

26

666.5
20 MIN–70 MAX

226

273

Lifting brackets

Vacuum gauge

350
310

45°

Pressuregauge

Outlet port
Rc 1/2Returned from relief valve
Φ12 hose nipple

DrainΦ12 hose nipple

Suction port
Φ32 hose nipple
Contaminant drain port
Φ19 hose nipple

In addition to the parts shown in the figure above, inlet hose, contaminant drain hose, return hose from relief valve, return hose from unloading
valve, seal drain tube (3 m each ) and hose clamps are included.
*The accessories included in the models for overseas may be different. Please contact our local distributor for further details.
[CAUTION]
Hoisting must be carried out by qualified personnel in accordance with safety standards and requirements. Never use these brackets foranything other than their intended purpose.

(mm)*Drawings in PDF format can be downloaded from NOP filter pump website.

https://filter-pump.nopgroup.com/eng

30

YTH-CI
Large Flow Low Pressure Coolant Unit with
Built-in Cyclone Filter
Cyclone Filter
The cyclone system effectively removes sludge from the coolant.

Impeller Pump
The impellers spin and accelerate the liquid, thereby generating pressure inside the pump.
This pump is designed to transfer large flow of liquid.

MODEL NUMBERING SYSTEMTOP—YTH ➀ ➁ - ➂Motor Capacity

Motor Type

Pump Capacity* (Impeller Pump)

1500: 1.5 kW
3700: 3.7 kW

AC: AC 200/200/220/230V
50/60/60/60Hz
3 phase electric induction motor (IE3) with CE
marking

I155C: 150 L (5 stages) with 50 Hz motor
I152C: 150 L (2 stages) with 60 Hz motor
I305C: 300 L (5 stages) with 50 Hz motor
I302C: 300 L (2 stages) with 60 Hz motor*I155C, I305C can not be operated at 60 Hz.

SPECIFICATIONS
Motor
Capacity(kW)

Voltage(V)

Frequency(Hz)

Approvals

Flow Rate(L/min)Total Pump
Head
(m)

Approximate
Weight(kg)

YTH1500AC-I155C

1.5

200

50

IE3, CE

150

55

43

YTH1500AC-I152C

1.5

200/220/230

60

IE3, CE

150

40

43

YTH3700AC-I305C

3.7

200

50

IE3, CE

300

65

70

YTH3700AC-I302C

3.7

200/220/230

60

IE3, CE

300

45

69

Model

31

YTH-CIDIMENSIONS

Terminal Box Detail View

(Typical/Motor Type: AC)

Earth termianl mark

Earth terminal M5
Screw size M4

U

U V W

V W

16 14 16

Screw size M5
G 3/4
Direction of rotation

168

187

Direction of rotation

90

90

°

°

There are upper and lower mounting positions on the pump.
Select either one in accordance with the depth of your tank.

φ243

φ250

φ138

118
902.6

48

48

15

728.1

Contaminantdrain port
Rc 3/4

378.1

60
φ179

φ200
φ250

Outlet port
Rc 1·1/2

φ166
φ195

458.6

Inlet port
(Perforated metal)

φ140

Mounting position

Outlet port
Rc 2

Inlet port
(Perforated metal)

φ172.580.5(Minimumliquid level)

Drain port
Rc 3/893.5

12Lower mounting
position

133.5

φ180
φ230

24.5
151.1
228.1

Upper mounting
position

77(Minimumliquid level)

Contaminantdrain port
Rc 3/4

72.5

500

φ200

444

273

326

φ202

45°
45°

90°

Lower mounting
position
P.C.D160
4-Φ9 drill through90°

Drain port
Rc 3/8Upper mounting
position
P.C.D2004-Φ9 drill throughP.C.D.225
4-Φ9 drill throughDrain*If mounting the pump at lower position,
be sure to do proper drain piping.

150 L Type
*Drawings in PDF format can be downloaded from NOP filter pump website.

300 L Type(mm)
https://filter-pump.nopgroup.com/eng

32

YTH-GCI
Large Flow Low Pressure Coolant Unit with
Built-in Cyclone Filter
Cyclone Filter
The cyclone system effectively removes sludge from the coolant.

Impeller Pump
The impellers spin and accelerate the liquid, thereby generating pressure inside the pump.
This pump is designed to transfer large flow of liquid.

MODEL NUMBERING SYSTEMTOP—YTH ➀ ➁ - ➂Motor Capacity
1100: 1.1 kW
1500: 1.5 kW
2200: 2.2 kW

Motor Type

Pump Capacity* (Impeller Pump)

R1/R2/R3/R4/R5/R6/R7
See the “MOTOR SPECIFICATIONS” tablebelow for the voltage, frequency, approvals

I075CG: 70 L (5 stages) with 50 Hz motor
I073CG: 70 L (3 stages) with 60 Hz motor
I135CG: 135 L (5 stages) with 50 Hz motor
I132CG: 135 L (2 stages) with 60 Hz motor
I303CG: 300 L (3 stages) with 50 Hz motor
I302CG: 300 L (2 stages) with 60 Hz motor*I075CG, I155C, I305C can not be operated at 60 Hz.

SPECIFICATIONS
Model

Motor Capacity(kW)

Motor Type

Flow Rate(L/min)Total Pump Head(m)

Approximate Weight
(kg)

1.1

R1, R3, R4, R5

70

50

28.3

YTH1100**-I075CG
YTH1100**-I073CG

1.1

R2, R3, R6, R7

70

45

27.3

YTH1500**-I135CG

1.5

R1, R3, R4, R5

135

50

40

YTH1500**-I132CG

1.5

R2, R3, R6, R7

135

35

40

YTH2200**-I303CG

2.2

R1, R3, R4, R5

300

45

70

YTH2200**-I302CG

2.2

R2, R3, R6, R7

300

40

69

MOTOR SPECIFICATIONS
Motor Type33

Voltage (V)Frequency (Hz)Approvals

R1

415

50

IE3, CE

R2

230

60

UL, CC, CE

R3

200

50/60

R4

400

50

Motor Type

Voltage (V)Frequency (Hz)Approvals

R5

380

50

GB2,
CCC, CE

IE3, CE

R6

440

60

UL, CC, CE

IE3, CE

R7

220

60

IE3, CEYTH-GCIDIMENSIONS

Terminal Box Detail View

(Typical/Motor Type: A3)

Earth terminal M5

P.C.D.φ113
Screw size M5
Terminal screw size M5

Lifting points

138

φ139.845°

Drain Port
G 1/4

Drain Hose
φ10 300 m

70 L Type

45°

Lower
mounting
position
P.C.D. 160
4 × Φ9 drill
Upper mounting position
P.C.D. 200
4 × Φ9 drill

135 L Type871 MAX

Outlet port Rc 11/2
453
587.5 MAXI303CG: 134.5
I302CG: 110.0

203.5
418
283.5
Inlet port
Φ3 perforated

Upper
mounting
position
P.C.D.225
4 × Φ9 drill
Drain port
G 1/4

84.5

Lower mounting
position
P.C.D. 150
4 × Φ6 Drill

φ172.5

Inlet port
Φ3 perforated
90°

Inlet port
Φ3 perforated

φ166
φ199

80
(Minimumliquid level)

164
φ179

153
230

φ140

φ200
250

Contaminant drain port Rc 3/4

75.5
φ180

φ130

Upper
mounting
position
P.C.D.180
4 × Φ9 Drill

545

φ140

77
(Minimumliquid level)

G 1/4

Lower mounting
position

Drain hose approx. 300 mm

Upper mounting
position

251

282 MAX

φ175.6

Outlet port Rc 1

I075CG: 186
I073CG: 136
80
100(Minimumliquid level)

544 MAX
358

φ140
φ160

180

724 MAX

φ160
188

45°

°

208
φ160
Contaminant drain port Rc 3/4

φ175.690180

776 MAX
Contaminant drain port Rc 3/4

115

101

Directionof rotation

45°
Lifting
points

125

45°

200

140 MAX

Outlet port
Rc 1·1/2
Direction of rotation

Direction ofrotation

There are upper and lower mounting
positions on the pump. Select either
one in accordance with the depth ofyour tank.

Lifting points

Retractable cable port
I07*CG: PG11
I13*CG: PG11
I30*CG: PG16

U V W

Drain hose
φ10 300 m

Lower
mounting
position
P.C.D.180
4 × Φ7 drill

300 L Type(mm)

*Drawings in PDF format can be downloaded from NOP filter pump website.

https://filter-pump.nopgroup.com/eng

34

FEATURES OF YTH-CI/GCI
Large Flow Low Pressure Coolant Unit

Impeller Pump

YTH-CI/GCI is designed to deliver large flow at low pressure

YTH-CI/GCI employs impellers whose design is best suited forwith built-in cyclone filter. Its compact design enables easy ret-

supplying large quantity of coolant and capable of boosting up

rofitting to your existing tank of NC lathe, machining center orpressure with its multiple stage impellers.

grinding machine, etc.
The large flow also ensures high efficiency in sludge removal,• Compatible fluid typewhich substantially reduces problems around the tank, such as– Water soluble cutting fluids.

dimensional deviation of workpieces, clogged plumbing due to– Non-water soluble coolant with kinematic viscosity of 22
mm2/s or less.

excessive accumulation of sludge.

– Incompatible with lubricant oils and fuel oils.
• Total Pump Head: 35–65 m– Incompatible with clear water, demineralized water, aqueous solutions and viscous fluids which do not offer rust-protection, corrosive fluids and solvents.

• Maximum Flow Rate: CI 15*C: 150 L/min		

CI 30*C: 300 L/min		

GCI 07*CG: 70 L/min		

GCI 13*CG: 135 L/min		

Impeller Pump

GCI 30*CG: 300 L/min

Rigid coupling1+x 61

Cyclone Filter

Coolant outlet port

Contaminantdrain port
Pump section

This unique reversed cyclone system can separate clean coolant and dirty coolant inside the pump. Dirty coolant is pushed

Contaminantdrain pipe

Pressure impeller
Suction pipeup through the side surface of cyclone filter by centrifugal force
and discharged with sludge. Filtered clean coolant is collectedto the center of cyclone filter and boosted up by multiple-stage
impellers.

CycloneCyclone filter

Venting impeller

Filter Rating (Nominal value)

Inlet port

Suction strainer

3 mm(Solids larger than this must be removed
from the tank)

Cyclone filter

Water soluble coolant
100 μm: 99.9% (Specific weight 2.7)
Straight oil
100 μm: ≧ 80% (Specific weight 2.7)

Contaminant
Drain Port
(Dirty Coolant)x2

x5

Outlet Port
(Clean Coolant)

How Sludge is Separated (DEMO VIDEO)

Scan withyour mobile device !
Unfiltered Coolant
from Tank

Degree of Contamination
High : Dirty

35

Low : Clean

YTH-CI/GCISLUDGE COLLECTION WITH YTH-CI/GCI

Install YTH-CI/GCI in a
way that filtered clean
coolant from the outlet
port can circulate all
around the tank.

Proper agitation of the tank byfollowing STEP 1 can prevent
sludge precipitation in the tank.
YTH-CI/GCI can also collectsludge floating in the tank anddischarge from the contaminantdrain port.

Discharged sludge canbe collected with YTH
wire mesh bucket or asettling tank.

YTH-CI/GCI
Outlet port

Contaminantdrain port
Settlingtank

Coolant tank

[How Sludge is Collected with YTH-GCI]
YTH-GCIThe large flow low pressure unit is discharging sludge.

How Sludge is Collected with YTH-GCI(DEMO VIDEO)

Scan withyour mobile device !

Sludge in the tank that was collectedby the large flow low pressure unit.

36

APPLICATION EXAMPLES
Plan - A

To Transfer Coolant to an Isolated Clean Tank

YTH-CI/GCI transfers cleaned coolant from a coolant tank to an isolated clean tank.
A plate filter is no longer necessary between the tanks, so the users will be free from the maintenance of plate filter.
Furthermore YTH-CI/GCI can separate sludge from the coolant and discharge from contaminant drain port.

Plan - B

Discharged sludge can be collected easily with YTH wire mesh bucket, allowing substantial reduction in coolant maintenance.

The pump pushes out sludge in lumps

Plan - C

BucketYTH-CI/GCI

Through spindle
pump

Outlet port

Contaminantdrain port

SludgePlan - A

Plan - B

Coolant tank

Clean tank

Machine tool

Tank Cleaning System ➀YTH-CI/GCI can be an excellent tank cleaner.
The circulation of coolant created by YTH-CI/GCI helps prevent precipitation of sludge in the tank and eliminate sludge effectively,
allowing substantial reduction in coolant maintenance.

Plan - C

Outlet port
Contaminantdrain port

Magnetseparator

Swarf

37

Through spindle
pump

YTH-CI/GCI

Plate filter

Coolant tank

Clean tank

Machine toolPlan - A

YTH-CI/GCI

Plan - B

Plan - C

Tank Cleaning System ➁YTH-CI/GCI delivers cleaned coolant directly to machine tool. Additionally, once the operation is stopped, it can agitate the coolant
tank and effectively collect sludge in the tank by changing the flow direction with switching valve.

Switching valve
NozzleYTH-CI/GCI

BucketOutlet port

Contaminantdrain port

SludgeCoolant tank

Plan - C1

3 roles of YTH-CI/GCI

To Supply Cleaned
Coolant
Cleaned coolant is
supplied at all times,
reducing machine
downtime.

2

To Collect Sludge

YTH-CI/GCI will
effectively collectsludge, ensuring thesubstantial reduction
in tank maintenance.

To Agitate the
Coolant Tank

3

Proper agitation of coolant with YTH-CI/GCI
can delay the growth ofanaerobic bacteria in a
coolant.

38

SAMPLE SYSTEM LAYOUT (YTH-CI)
To machine tool

YTH-CI
Separator, conveyor, etc.

Pressure gauge(0–1.0 MPa)

<3m
Contaminant drain port Rc 3/4
Drain piping: Lifting height < 1 m
Length (horizontal) < 3 m<1m

YTH-CI150L Rc 1·1/2
Screen filter #18
Dirty coolant liquid returned
from machine tool.

> 1 mm> 1 mmMinimum
liquid level
77 mm

YTH-CI300L Rc 2

Minimum
liquid level
80.5 mmOutlet port

YTH-CI300L

YTH-CI150L

Please be sure to readthe instruction manual
before use.

Scan withyour mobile device !

SAMPLE SYSTEM LAYOUT (YTH-GCI)
YTH-GCITo machine tool
Pressure gauge(0–1.0 MPa)

Separator, conveyor, etc.
<3m
Contaminant drain port Rc 3/4
Drain piping: Lifting height < 1 m
Length (horizontal) < 3 m

YTH-GCI070L<1m

Minimum
liquid level
77 mm

Screen filter #18
Dirty coolant liquid returned
from machine tool.

> 1 mm> 1 mmMinimum
liquid level
80 mm

Outlet port
Rc 1·1/2

YTH-GCI135L

YTH-GCI300L

Please be sure to readthe instruction manual
before use.

39

Scan withyour mobile device !

YTH-CI/GCIPERFORMANCE CURVES (YTH-CI)
Water Soluble Coolant [General Performance]
Test oil: JIS K2241 A3 solution containing 2% Water soluble cutting fluid.

YTH-CI155C

YTH-CI305CYTH-CI152C

YTH-CI302C

50 Hz
Q-H Curve

70
60
50
40
30
20
10
0

0

50

100

150

200

Required Power

4.0

Pump shaft power (kW)Total pump head (m)

80

250

300

350

3.5
3.0
2.5
2.0
1.5
1.0
0.5
0

400

0

50

100

Flow rate (L/min)

150

200

250

300

350

400

300

350

400

Flow rate (L/min)

60 Hz
Q-H Curve

50
40
30
20
10
0

0

50

100

150

200

Required Power

4.0

Pump shaft power (kW)Total pump head (m)

60

250

300

350

400

3.5
3.0
2.5
2.0
1.5
1.0
0.5
0

0

50

100

Flow rate (L/min)

150

200

250

Flow rate (L/min)PERFORMANCE CURVES (YTH-GCI)
Water Soluble Coolant [General Performance]
Test oil: JIS K2241 A3 solution containing 2% Water soluble cutting fluid.

50 Hz
Q-H Curve

Total pump head (m)80

YTH-I135CG

70
60
50

YTH-I303CG

40
30
20
10
0

YTH-I075CG
0

50

100

150

200

250

300

350

400

Flow rate (L/min)

60 Hz
Q-H Curve

Total pump head (m)60

YTH-I132CG

50
40

YTH-I302CG

30
20
10
0

YTH-I073CG
0

50

100

150

200

250

300

350

400

Flow rate (L/min)

40

YTH Wire Mesh Bucket

YTH WIRE MESH BUCKET (Sludge Collection Bucket)
YTH wire mesh bucket is made of stainless steal with double layered[Simple Layout to Collect Sludge]

structure (Lower and upper layers).

Push out sludge in lumps
>

>

>

>

>

>

>

>

>

Bucket

>

>

>

>

>

>

>

>

>

Sludge>>> > > > > >

>

>

>

>

>

>

>

>

>

>

>

>

>

>

Compatible Sludge Materials for YTH Wire
Mesh Bucket (Sludge Collection Bucket)>

will be collected.

Tomachinetool>>

strained through its wire mesh and only sludge>

The dirty coolant discharged from contaminant drain port will be

>

>

>

– Water soluble coolant.
– Magnetic materials (Cast metal), Non-magnetic materials (Aluminum).

Model

Wire mesh
Expected flow rate
(Lower layer/Upper layer)
L/min
µm

Sludge materials

YTH Wire Mesh Bucket 135A (50/100 µm)

Aluminum

50/100Cast metal/Aluminum

250/500

YTH Wire Mesh Bucket 250A (50/100 µm)
YTH Wire Mesh Bucket 250B (250/500 µm)

External
dimensions
mm

20–40

φ135 × 220

80

φ250 × 300*As a guideline, empty the bucket each time the bucket is filled about 40% of its capacity.

YTH Wire Mesh Bucket 135A

YTH Wire Mesh Bucket 250A/B

Handle φ3.0

Handle φ3.2

Engraved
A: Mesh 50/100 μm

Engraved
A: Mesh 50/100 μm
B: Mesh 250/500 μm

94

286

45-φ25100 μm19-φ25
50 μm

420
186

Perforated
stainless sheett = 0.8380-φ15100 μm or 500 μm

152-φ1550 μm or 250 μm
78

φ135

300

96

220

45-φ2550 μm

φ250

Perforated
stainless sheett = 1.0121-φ1550 μm or 250 μm

41SPECIFICATIONS FOR ALL YTH SERIESQR CODE LIST
Scan QR code of the tiles that you need to check.

INSTRUCTION MANUALYTH-EP/YTH-EP Line TypeYTH-ES/YTH-ES Line TypeYTH-CT

YTH-CS/YTH-CS Line TypeYTH-CIYTH-GCI

YTH-ET

TROUBLESHOOTING GUIDE
Backwashing

How to adjust the pressure of relief valve

42

NOP FILTER PUMP—Coolant Pump with Built-in Filtration System
YTH-EP

YTH-ES

YTH-CT/CS
1+6

7.0

6.0

3.5

2.0

3.0

1.5

2.0

1.5

•Turbulence™ Filter•Turbulence™ Filter•Double-cyclone Filter•Plunger Pump/7.0 MPa, 6.0 MPa,
3.5 MPa, 3.0 MPa•Trochoid™ Pump/2.0 MPa, 1.5 MPa•Trochoid™ Pump/2.0 MPa, 1.5 MPa

YTH-ES(Turbulence™ Filter+
Trochoid™ Pump)

YTH-EP(Turbulence™ Filter + Plunger Pump)

Pump Model

YTH-CT/CS(Double-cyclone Filter+
Trochoid™ Pump)

Pump Specifications
Pump Model
Flow Rate (L/min)

P008

P010

P014

P016

S208

S216

T208

12.0/14.4

15.0/18.0

21.0/25.2

24.0/28.8

12.0/14.4

24.0/28.8

12.0/14.4

Compatible Fluid

Water soluble coolant/Non-water soluble coolant*2

Maximum Allowable Viscosity(mm2/s) (Filtration Rating)15 (20 µm)

15 (20 µm)/32 (50 µm)

Liquid Temperature Range (℃)-5–60
1500/1800
7.0/7.0

7.0/6.0

7.0/7.0

3.5/3.0 (2.2 kW)
7.0/6.0 (3.7 kW)

Total Pump Head (m)S216
24.0/28.8

Water soluble coolant

Rotational Speed (min-1)
Maximum Pressure (MPa)T216

1.5/1.522

2.0/2.0

2.0—

Filtration Type

Turbulence™ filter

Double-cyclone filter

20 µm/50 µm

Water-soluble coolant fluid 100 μm: 99.9%(Silica sand: Specific weight 2.7)

Filtration Rating (Nominal)
Contaminant Drain Port (L/m)

30–40 (Discharge pressure 0.02 MPa)

Remarks

Install a plate filter of ≧ 18 mesh on the suction end of the tank.

Painted Color of the Pump

Matte black (Approximately Munsell N1.0)

Approximate Weight (kg)20

16

Relief Valve Specifications
Valve TypeSet Pressure (MPa)External return type7.0/7.0

7.0/6.0

7.0/7.0

3.5/3.0 (2.2 kW)
7.0/6.0 (3.7 kW)

1.5/1.5

2.0/1.5

3700A3

2200A3/3700A3750A31500A32.0/1.5

Motor Specifications*1
Model Number

2200A3Motor Specifications
Output (kW)

2.2

3.7

2.2/3.7

Voltage (V)0.75

1460/1755/1765/1770

1460/1755
1765/1765

15.6/14.6
13.8/13.6

10.6/9.40
9.20/9.20
15.6/14.6
13.8/13.6

1440/1730
1745/1745

0.75

1.5

1445/1740
1750/1755

1440/1730
1745/1745

1445/1740
1750/1755

6.80/6.40
6.00/6.00

3.80/3.40
3.40/3.40

6.80/6.40
6.00/6.00

23

18

23

S1
10.6/9.40/9.20/9.20

3.80/3.40
3.40/3.40

Number of Phases

3

Number of Poles

4P

Insulation Class
Approximate Weight (kg)1.5

50/60/60/60
1460/1755
1765/1770
1460/1755
1765/1765

RatingCurrent (A)

F
33

42

33, 4218

Protection Rating

IP55

Approvals

IE3, CE*1 Please contact us if you need more information about other motor’s specifications. *2 Please contact us if you use non-water soluble coolant.

43

1500A3200/200/220/230

Frequency (Hz)
Rotational Speed (min-1)

750A3

3-Phase squirrel-cage induction motor, totally enclosed with external fan, flange-mounting type

SPECIFICATIONS FOR ALL YTH SERIESYTH-CIYTH-GCI

x1

x2

x1

x5

x2

x5

x3

•Reverse-cyclone Filter•Reverse-cyclone Filter•Impeller Pump
Total Pump Head: 40 m–65 m•Impeller Pump
Total Pump Head: 35 m–50 m

YTH-CI(Reverse-cyclone Filter + Impeller Pump)

Pump Model

YTH-GCI*1(Reverse-cyclone Filter + Impeller Pump)

Pump Specifications
Pump Model

I155C

Flow Rate (L/min)

150 (Max. flow rate)

I152C

I305C

I302C

I075CG

300 (Max. flow rate)

Compatible Fluid

3600

3000

3600

3000

I302CG
300

3600

3000

3600

3000

3600

40

50

35

45

40

30–60

40–70

34

33

–
55

40

65

45

50

Filtration Type

Reverse-cyclone Filter
Water-soluble coolant fluid 100 μm: 99.9% (Silica sand: Specific weight 2.7)
Non water-soluble coolant fluid 100 μm: More than 80.0% (Silica sand: Specific weight 2.7)

Filtration Rating (Nominal)
20–35

25–40

45–60

Remarks

50–70

20–35

20–40

20–35

25–40

Install a plate filter of ≧ 18 mesh on the suction end of the tank.

Painted Color of the Pump
Approximate Weight (kg)

I303CG-5–60
3000

Maximum Pressure (MPa)Contaminant Drain Port
(L/m)

I132CG
135

22

Liquid Temperature Range (℃)

Total Pump Head (m)I135CG

Water Soluble Coolant/Non-water Soluble coolant*2

Maximum Allowable Viscosity(mm2/s) (Filtration Rating)Rotational Speed (min-1)

I073CG70

Matte black (Approximately Munsell N1.0)
23

34

33

8.3

7.3

15

Relief Valve Specifications
Valve Type—Set Pressure (MPa)—Motor Specifications*1
Model Number

1500AC

3700AC

Motor Specifications
Output (kW)1.5

Voltage (V)

3.7

1.1

50/60/60/60

1.5

2890/3460
3485/3495

2.2

2910/3490
3515/3525

50

60

50

60

50

60

2800

3440

2880

3460

2880

3540

6.1

6.5

7.2

10.6

10.0

S1
6.00/5.80/5.40/5.20

13.6/13.2/12.2/11.8

4.7

Number of Phases

3

Number of Poles

2P

Insulation Class
Approximate Weight (kg)

2200R3200

RatingCurrent (A)1500R3200/200/220/230

Frequency (Hz)
Rotational Speed (min-1)

1100R33-Phase Squirrel-Cage Induction Motor, Totally Enclosed with External Fan, Flange-Mounting Type

F
20

36

20

Protection Rating

IP55

Approvals

IE3, CE25

36*1 This table only contains the specifications of GCI’s typical motor (R3). For the details of other motors, please contact us. *2 Please contact us if you use non-water soluble coolant.

44

TROUBLESHOOTING GUIDE
Symptom

Possible Causes
Motor failure.

Check Methods
Are wires at motor loose or disconnected?
Do operation test for motor individually.

Motor is wired incorrectly or dis- Are wires at motor loose or disconnected?
connected.
Check direction of rotation.

Possible Remedies
Repair or replace motor.
Rewire motor in a correct rotation indicatedon label.

Coupling is damaged.

Check connected area between pump andReplace coupling.
motor.

Insufficient liquid level.

Check liquid level in the tank.

·Add enough liquid.
·Control liquid level with level sensor.

Inlet port is clogged.

Check the inlet port for clogging.

·Periodical cleaning around inlet port.
·Insert a plate filter prior to the inlet port as a
“Screen filter #18.”·Perform backwashing.
·Does pump deliver liquid from contaminant(Please be sure to read the instruction
No discharge from outlet Turbulence filter is clogged.
drain port?
manual.)port.
*Only applies to YTH-EP and ES. ·Is there abnormal noise?
·Take measures to prevent suction of air or·Is there tramp oil?
tramp oil.
Insufficient flow or pressure. Impeller is clogged with sludge,
Check for impeller clogging and damage.
pump failure.
Abnormal noise.

·Remove sludge.
·Repair or replace pump.

Air drawn into pump or pipes.

After long storage or right after replacing ·Perform air-bleeding on pump or piping.
coolant, pump may not discharge properly ·If there is a check valve in outlet line, do itright before the one.
due to the air trapped inside the pump.

Pump failure or wear.

·Does motor rotate?
·Are viscosity and lubricity adequate?
·Is there abnormal noise?

Repair or replace motor.
Change the types of coolant you use.

Cavitation, Aeration.

Is pump sucking foam or air?

Take measures to prevent suction of air or
tramp oil. (ex. Change pump location, use
partition or anti-foaming agent.)

Outlet port size is too big.

Is outlet flow sufficient as specified?

Replace with smaller port.

Relief valve pressure setting.

Does pressure build up when tightening the Tighten up the relief valve’s pressure control
relief valve’s pressure control screw?
screw to the required level.

Relief valve fixing.

Does pressure not build up when tightening ·Repair or replace relief valve.
the relief valve’s pressure control screw?
·Remove tramp oil.

Take off a pipe from the contaminant drain Piping must be no higher than 1 m from theContaminant drain port piping is
port and check if liquid is properly being tank bottom vertically, and no longer than
too long or too high.
delivered or not.
3 m horizontally.
No discharge fromcontaminant drain port.

Clogging of contaminant drain
Check the clogged area in the pipeline.
port.

·Clean inside the pipe periodically.
·Minimize the number of bends in piping.
·Replace with larger port.

Clogging or failure of suction Check the suction impeller for clogging or ·Remove accumulated sludge.
impeller.
damage.
·Repair or replace pump.

Liquid leaks.

Breaker or thermal trips out.

Oil seal is deteriorated or dam- Does liquid leak from near the coupling
Repair or replace pump.
aged.
connected area?
Gasket is deteriorated or damDoes liquid leak from connected area?
aged.

Repair or replace pump.

·Motor failure.
·Wiring errors.

·Check motor wiring.
·Does motor start?

·Rewire motor.
·Repair or replace motor.

Overloading.

·Use motor with higher output rating.
Are motor output rating and liquid viscosity ·Use pump with lower capacity.
adequate?
·Lower the pressure setting.
·Change the coolant types.

·Coolant type is incompatible.
·Is motor rotating?
·Repair or replace pump.
(Viscosity is too high or insuffi·Are liquid viscosity and lubricity adequate?
cient lubricity.)·Change the types of coolant you use.
·Is there abnormal noise?
·Pump failure.

45

SPECIFICATIONS FOR ALL YTH SERIESWORK MATERIAL COMPATIBILITY TABLES*The compatibility of work materials varies depending on individual tank conditions, such as maintenance status, shapes of work materials (ex. Wool-likeor sharp needle-like), the percentage of Si content, whether material is heat-treated or not.
The information below is for a reference only. Please consult us for further details.
✓=Compatible ✕=Incompatible ▲=Conditionally compatible

Material

Metal

Number (Typical)

EP

ES

CT

CS

CI/GCI

Carbon steel

S45C

120–269

✓

✓

✓

✓

✓

Chromium steel

SCr435

255–321

✓

✓

✓

✓

✓

Chromium molybdenum steel

SCM445

302–415

✓

✓

✓

✓

✓

Nickel‐chromium steel

SNC815

302–415

✕

✓

✕

✓

✓

Carbon tool steel

SK95 (SK4)

203–286

✓

✓

✕

✓

✓

High speed tool steel

SKH56

722

✕

✓

✕

✓

✓

Alloy tool steel

SKT6

512–580

✕

✓

✕

✓

✓

High carbon chromium
bearing steel

SUJ5

222–512

✕

✓

✕

✓

✓

Spring steel

SUP10

363–429

✕

✓

✕

✓

✓

Aluminum alloy

2000, 7000 series

45–130

✓

✓

✓

✓

✓

Aluminum alloy fordie-casting

ADC14

120

✕

✓

✕

✓

✓

Brass

C2801P

80–150

✓

✓

✓

✓

✓

Chromium copper

SCr435

255–321

✓

✓

✓

✓

✓

Gray cast ironFC250

160–285

✓

✓

✓

✓

✓

Ductile cast iron

FCD800160–300

✓

✓

✓

✓

✓

Austenitic stainless steel

SUS304

≦ 200

✓

✓

✓

✓

✓

Ferritic stainless steel

SUS430

183

✓

✓

✓

✓

✓

Martensitic stainless steel

SUS440C

≦ 615

✕

✓

✕

✓

✓

Titanium alloy steel

TP340

110–320

✕

✓

✕

✓

✓

InconelAlloy625

400–859

✕

✓

✕

✓

✓

100–350

✕

✓

✕

✓

✓

300

✕

✓

✕

✓

✓

2350

✕

✕

✕

✕

▲

Abrasive grain

✕

✕

✕

✕

✓

Carbon

✕

✕

✕

✕

✕

Resin

✕

✕

✕

✕

✕

Tungsten steel
Heat-resistant alloy(For aero-engine)
Ceramic
NonMetal

Hardness (HV)

M152

46

FILTER PUMP
H P:

searchNOP FILTER PUMP

h t t p s : //f ilt e r- p u m p . n o p g ro up . c o m /e n g /Safety notice: For your safe operation, please read the User's Instruction Manual provided with the product before use.

®

This catalog is valid through December, 2025.

Your dealer:© 2016 Nippon Oil Pump Co., Ltd. All Rights Reserved.

20240408-W