GRUNDFOS PRODUCT GUIDE

MQ
Self-priming multistage pumps
60 Hz1

Contents

General data
Application
Type key
Pumped liquids
Operating conditions
Technical data
Features and benefits
Control panel
Product range

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6777891011

Technical data
Material specification
Flooded suction performance curves
Dimensions
Technical data
MQ 3-35 suction lift performance curves
MQ 3-45 suction lift performance curves
Submittal data sheetNotes2�������Mission������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������ ������������������������������������������������������������������������������������� ������������������������������ ��������������������������������������������������������������������������������� ����������������������������� ������������������������������������������������������� ������������������������������������������������������������� �����������������������������������������������������������������������������������������������������������������

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General data

MQ

Application

Features and benefits

The MQ pump is designed for water supply and pressure
boosting ...

• Complete system
The MQ is a complete, all-in-one unit, incorporating
pump, motor, diaphragm tank, pressure and flow sensor,
controller and check valve.
The controller ensures that the pump starts automaticallywhen water is consumed and stops automatically when
the consumption ceases. In addition, the controller
protects the pump in case of faults.

• homes• cabbins, cottages• on farms as well as• gardens
The pump is suitable for pumping of potable water and rainwater.

Type KeyExample

MQ 3 -35 A - B - A -BVBP

Pump range
Rated flow [m³/h]
Max. head [m]Code for pump version
A: Standard
Code for pipework connection
B: External thread
Code for materials
A: Standard• Simple operation
The pump features a user-friendly control panel with
ON/OFF button and indicator lights for indication of theoperational state of the pump.
• Self-priming pump
As it is self-priming, the MQ is able to pump water from alevel below the pump. Provided it is filled with water, thepump is able to lift water from a depth of 26 ft (8 m) inless than 5 minutes. This facilitates installation and startup of the pump and provides more reliable water supply
in installations where there is a risk of dry running andleakages in suction hose or pipes.
• Built-in protective functions
If exposed to dry running, excessive temperature, or any
overload condition the pump will stop automatically, thus
preventing a motor burnout.

Code for shaft seal

Pumped liquids
Potable water, rain water or other clean, thin, non-aggressive
liquids not containing solid particles or fibres.

Operating conditions
System pressure:Max. 109 psi (7.5 bar).

Inlet pressure:Max. 44 psi (3 bar).

Suction lift:

Max. 26 ft (8 m).

Liquid temperature:

32°F to +95°F (0°C to +35°C).

Ambient temperature:

32°F to +113°F (0°C to +45°C).

Technical data
Mains voltage:

4• Installation
Due to its compact design, the pump does not take upmuch space and is easy to install. No space around thepump is required.

• 115 V models:• 230 V models:1 x 110-120 V, 60 Hz
1 x 220-240 V, 60 Hz.

Voltage tolerances:–10%/+6%.

Enclosure class:

IP54.

Insulation class:

B.

Sound pressure level:≤ 55 dB(A).

Agency approvals:

UL, cUL• Automatic reset
The pump features an automatic reset function. In caseof dry running or similar alarm, the pump will stop.
Restarting will be attempted every 30 minutes for a periodof 24 hours. The reset function can be deactivated.
• Low noise level
Thanks to its hydraulic design and internal cooling, thepump is very quiet, which makes it suitable for manyapplications.
• Pressure tank
The built-in pressure tank reduces the number of starts
and stops in case of leakages in the pipe system, causing
less wear on the pump.
• MaintenanceNo maintenance of the pump is required.

General data

MQ

Control panel operation
2

13

4

5Pos.
1

TM01 9684 2600

6Function

Description

ON/OFF button

The Pump is started and stopped bymeans of the ON/OFF button.

2Power indicator lights
34

Indicates that the pump is ready for
operation (green).
Indicates that the pump is on
standby (red).

Pump ON (green)

Indicates that the pump is running.

5Auto reset (green)

Indicates that the auto resetfunction is active. After an alarm,
restarting will be attempted every
30 minutes for a period of 24 hours.

6Alarm (red)Indicates that the pump is in alarmstate. Manual resetting is possible
by pressing the ON/OFF button.

Product range
RegionPump Type
MQ 3-35

USA, Canada & Mexico

MQ 3-45
MQ 3-35
MQ 3-45

Voltage1 x 110 - 120 V

1 x 220 - 240 V

Connection
Power Cord w/plug
Power Cord w/plug
Power Cord w/plug
Power Cord w/plug

5Technical Data

MQ

Material specification
Pos.

Components

2Motor stool with baseplate

POM + 25% glass fiber4Chamber

PPO + 20% glass fiber

7

Drain and priming plug

POM + 25% glass fiber10

Self-priming valve

PP + 30% glass fiber

14

Self-priming part

PPE/PS + 20 % glass fiber

16

Pump sleeve

Stainless steel,
DIN W.-Nr. 1.4301, AISI 304

42

Pressure tank

Butyl (diaphragm)

49

Impeller

PPO + 20% glass fiber-PTFE

65

Non-return valve

POM + 25% glass fiber

92

Clamp

Stainless steel,
DIN W.-Nr 1.4301, AISI 304

100a

Discharge port

POM + 25% glass fiber

101

Suction port

POM + 25% glass fiber

103
104

Shaft seal:
Stationary androtating part

Carbon/ceramics/NBR rubber

Shaft

Stainless steel,
DIN W.-Nr 1.4005, AISI 416

Motor sleeve

Stainless steel,
DIN W.-Nr 1.4301, AISI 304

150174aPressure switch

184

Flow sensor
O-rings

6Material

NBR-rubber

POM: Polyoximetylen
NR-rubber: Natural Rubber
PPO: Polyphenylene Oxides
PP: Polypropylene
PPE/PS: Polyphenylene Oxides (the same as PPO but from different supplier)
NBR-rubber: Nitrile-Butadiene Rubber

Technical Data

MQ

Flooded suction (0 PSI inlet) performance curves*
H [ft] p [psi]60120H[m]MQ 3-4560 Hz
IS O 9906 A nnex A

5040-35100324080243060402001620108000P1P1[hp] [kW]Q [m³/h]
Eta[%]

4321020 Q [US GP M]

16128

41.01.20.8-45 P1-35 P10.8

25200.6

15

Eta

0.4

100.40.20.0

50.0004820 Q [US GP M]

1612*See suction lift performance curves (page 8) for installations with water level below intake.

Dimensions

Technical dataPumptype

Voltage

In[A]Istart[A]P2[W][hp]

Netweight[pounds]

MQ 3-35

1 X 110-120 V

7.2

12.5580

0.79

29

MQ 3-45

1 X 110-120 V

9.2

12.5680

0.92

29

MQ 3-35

1 X 220-240 V

3.7

8.65800.79

29

MQ 3-45

1 X 220-240 V

4.5

8.66800.92

297

Technical data

MQ

MQ 3-35 Suction lift performance curves

H [ft] p [psi]MQ 3-35 model B

110H[m]60 Hz0 Ft

45100
3.3 Ft40409080

6.6 Ft35

13.1 Ft

7032

19.7 Ft30

23.0 Ft
26.2 Ft

60
2524502040161530

102010085000081220 Q [US GP M]

16128434Q [m³/h]Technical Data

MQ

MQ 3-45 Suction lift performance curves

H[ft]140p[psi]

MQ 3-45 model B

H[m]

60 Hz

600 Ft130

3.3 Ft40

6.6 Ft12050

13.1 Ft

11019.7 Ft

100

32

23.0 Ft

9040

26.2 Ft

80
24703060

50

16204030
81020

10000001220 Q [US GP M]

16128434Q [m³/h]

9Submittal data sheet��������������������MQ

Company name:Prepared by:
Phone number: (Fax number: (Date:Submittal Data Sheet))

Page 1 of:

Quote number:
Client Information
Project title:
Reference number:
Client contact:
Location Information
For:
Site:
Address:

Client name:
Client number:
Client phone no: (Unit:
Service:
City:

Technical Data
Flow (GPM)
Head (Ft)
Motor
Max Fluid Temp
Min Fluid Temp
Max Working Pressure
Min Required Inlet Pressure)-State:
Motor InformationHP:
Phase:
Voltage:
Enclosure:

Connection Type and Size
Pump Information
Model Information from Type Key and Codes:
Quantity Required:
Minimum required flow:
Product Guide additional information pages
Materials page number:Technical data page number:
Custom-built pump information (optional):
Additional Information

10

��

Example: MQ 3-35
NPSH required at duty point:
Performance curve page number:Motor data page number:

Zip Code:Notes

MQ

11

Being responsible is our foundation
Thinking ahead makes it possible
Innovation is the essence

L-MQ-PG-001

7/04

Subject to alterations.

PRINTED IN USA

U.S.A.
GRUNDFOS Pumps Corporation
17100 West 118th Terrace
Olathe, Kansas 66061
Phone: (913) 227-3400
Telefax: (913) 227-3500

12

www.grundfos.com

CanadaGRUNDFOS Canada Inc.
2941 Brighton Road
Oakville, Ontario
L6H 6C9Phone: (905) 829-9533
Telefax: (905) 829-9512

MexicoBombas GRUNDFOS de Mexico S.A. de C.V.
Boulevard TLC No. 15
Parque Industrial Stiva Aeropuerto
C.P. 66600 Apodaca, N.L. Mexico
Phone: 011-52-81-8144 4000
Telefax: 011-52-81-8144 4010