Cat.No.
ISO 14001

ISO 9001

JQA-EM4057 JQA-2025
NITTO KOHKI Co,.LTD. NITTO KOHKI Co,.LTD.
Headquarters
Couplings Division
Research Center

SEMICONCUPLASERIES

Nitto Kohki’s SEMICON CUPLA series are usedin piping for various chemicals for semiconductor
manufacturing processes and biochemical plants.

NITTO KOHKI CO.,LTD.

Ck035-w

“Improved quality” is the greatest theme in the semiconductor
industry, which is making remarkable technical innovations.
As various chemicals used in the manufacturing

Applications

process of semiconductor ICs become purer andPiping for semiconductor production equipment and machinery

purer, higher quality and performance are

Pipe connections for chemical tanks

required in CUPLA, a series of quick connect
couplings used in the pipe parts.

Piping for biotechnology equipment
Pure water piping
Piping for equipment for scientific, chemical, medical, and food purposes

Chemical resistance that meets various chemicals

Main applicable fluids

Leak resistance that ensures safety

Pure water

Chemicals

Gas

Air

Cost effective because of capability to withstandrepeated use over long hours

Nitto Kohki takes full advantage of the know-howthat it has long accumulated and its world’s
top-ranking expertise to meet securely the piping
applications for high purity chemicals in thesemiconductor industry.

1

Application examples
Resin containers

Stainless steel containers

200-liter polyethylene containers

SP

SCS

SCY

SP-GN

SML

SCT

SCT-K

SCA

SCE

SCF

Type

Type

Type

Type

Type

Type

Type

Type

Type

Type

Nitto Kohki responds to theneeds of electronics industry
with innovative ideas.

OUT sideIN sideSCF
Straight
TypeStandard series
SP TypePlugs are mounted on
the chemical container.

P5-6

Body and valve springs are stainlesssteel (SUS304). Components areelectropolished for enhanced corrosion
resistance. Abundant size variation.
Sealing material can be selected to suit
you fluid and application.

SCS Type

Typical Applications
Solvent
Developer

Solvent
Developer(with “O-ring” sealing)(with fluoropolymer resin valve)

Developer
Weak acid
Strong Alkali

P7-8

The body and spring material ofstainless steel (SUS304), and valve offluoropolymer resin are employed.

Weak acid
Strong Alkali(made of PTFE)(made of PFA)

SP TypeSCS Type

SCF Type

SCY Type

SCT Type

P9

The SCY type is another version
of SCS series.
Insert load is decreased.

SCT Type

P11-12

Body material is polytetrafluoroethylene.
The available size range is from 1/4” to 1”.

SCF Type

P15-17All components are fluororesin.
Injection molding is employed toprevent the generation of particles.
Stainless steel container

Resin container

10 ~ 20

10 ~ 20

Stainless steel container

Resin container

100 ~ 200

100 ~ 200

SCF Straight Type
Resin container

1000

P18

The SCF straight type is anotherversion of SCF series.
It is used as an intermediate joint.

Typical installations on the chemical container side (plug) and piping side (socket)
Stainless steel container Resin container Stainless steel container Resin container(100 ~ 200 )(10 ~ 20 )(10 ~ 20 )(100 ~ 200 )SP Type (1/8")
SCS Type (1/8")

SCF Type(1/4")SP Type(1/4" s 3/8")

SCT Type(1/4" s 3/8")

SCT Type(3/8" s 1/2")

side

SP Type (1/4")
SCS Type (1/4")

SCF Type(3/8")SP Type(1/2" s 3/4")

SCT Type(1/2" s 3/4")

SCT Type(3/4" s 1")

IN
side

SP Type (1/8")
SCS Type (1/8")

SCF Type(1/4")SP Type(1/4" s 3/8")

SCT Type(1/4" s 3/8")

SCT Type(3/8" s 1/2")

OUT
side

SP Type (1/4")
SCS Type (1/4")

SCF Type(3/8")SP Type(1/2" s 3/4")

SCT Type(1/2" s 3/4")

SCT Type(3/4" s 1")

IN

Container side
side
(plug)
OUT

Pipingside(socket)Resin container(1000 )CONTENTS

3
4
5-6
7-8
9
10
10
11 - 1213
14
15 - 17
18
19
20
21
22
23 - 24
25
26

Research and development / Quality control
Glossary / The meaning of each letter in the model name
SP TypeSCS Type
SCY Type
SP-GN TypeSML Type
SCT Type
SCT-K TypeSCA Type / SCE TypeSCF Type + related items
SCF Straight TypeHigh Flow Cupla
High Flow Cupla BI Type
Compact Cupla
Body Material Selection Table
Seal Material Selection Table
Safety Guide / Beware of Imitations
Safety Guide

Semi-Standard Series
SP-GN TypeP10

SP-GN type is included in SP type
series. No interchangeability with
SP type to prevent miss connections.

SML Type

P10

SML type is included in the SP type
series. The socket is interchangeablewith the SP type plug and its shape is
L with male thread end configuration.

Special Made-to-Order
Cupla Series

SCT-K TypeP13

SCT-K type is another version of SCT
series. In response to diversification ofchemicals miss connection preventionfunction equipped.

SCA Type

P14

Body material is polytetrafluoroethylene(PTFE).

SCE Type

P14

For 200L polyethylene container.
Plug is polyethylene.

2Opening the door to the next
generation by developing
new technologies!
Nitto Kohki is constantly challenging the new technologies
based on the vast experiences and high-grade know-how
nurtured in the fields of fluid engineering.

Nitto Kohki’s depth of unique technologies anddedicated research has been proven by numerous
patents, which led to the development of 25,000
different Cupla variations.
Applications diversify from general household to high-tech

Research and development capabilities addressing the needs of market.
Various patented technologies.
Unique engineering capability.

industries such as in oceanic and space development.
Diameters range from a tiny 1mm to a huge 540mm.
Wide varieties of body materials such as steel, brass, plastic,aluminum or stainless steel are available.

Research and development
Tireless R & D produces high level of originality
and a new generation of products.
R&D Engineers are committed to develop original and innovative
products. They, with all their hearts, pursue valued labor-saving
technology by means of collecting and analyzing latest market
information, evaluating operating environments, and determining
user’s wants and needs.

A profusion of patented technology
crystallized in global users recognitionof high quality and high performance.
“Cuplas” quick connect couplings are produced as the crystallization ofhigh-grade know-how nurtured in the fields of fluid engineering andmaterials engineering, and top level precision machining technology.
Having assessed Nitto Kohki consistent quality assurance and control
system ranging from design and development through procurement ofmaterial, manufacture, assembly, and shipping, the Japan Quality
Assurance Foundation, authority for inspection and registration,
awarded us “ISO 9001”, international standard for quality management
systems, and “ISO 14001”, international standard for environment
management systems intended to perform global environment
preservation and pollution control. High reliability built on unparalleled“high quality” and accumulated history of “productivity” for stablesupply. Cupla is receiving overwhelming support from many users
spread all over the world as the top brand for fluid energy transmission
and control.

3

Quality Control
Wining the world’s confidence with material
selection, precision testing and durability testing.
Many tests, measurements and experiments repeated day andnight support the “making of high-quality products.” For example,
durability testing (where product samples are kept running under
severe conditions than in actual use), along with material
inspection, dimensional inspection, environmental testing,withstand pressure testing, and various other routine programs,
are an obligation. In so doing, the basic performance of the
products is srictly checked in many aspects.

Flow measurement testing

Inspection in clean room

Airtightness (seal material durability) testing

Durability test under diversified environments

Glossary

Refer to the following terms when checking Cupla specifications.

Body Material

Seal Material

This indicates the material that is used for the plug body or socket bodythat forms the flow path of fluid through the Cupla.

This shows the material used to seal the Cupla, usually an O-ring.

Working Temperature Range
Sizes

This shows the minimum and maximum temperature, in-between which
the Cupla with the seal material can be used. However, it does not meanthat they cannot be used continuously at the minimum or maximum
working temperatures. Please check with us if you need Cuplas in suchextreme applications.

This indicates the nominal size of the pipe thread connection.

PressureWorking pressureThis shows the normal allowable fluid pressure
under continuous use.

Pressure resistanceThis shows the maximum pressure that will notaffect the preformance of the Cupla even if there isa temporary increase to reach the pressure.

Automatic Shut-off Valves
This shows the structure of built-in valves that open and shut automaticallyon connection and disconnection.

Interchangeability

Pressure Loss

Indicate whether the plug or socket of different series, types or modles canbe connected with each other.

This shows the loss of pressure when fluid runs through the Cupla set.
Pressure loss = Upstream pressure – Downstream pressure
Upstream pressure

Max. Tightening TorqueConsidering the balance between possible leakage caused by loose fit andtoo much structural stress when a Cupla is mounted on a workpiece, theappropriate screw-in torque value is suggested by the maker.

Downstream pressureP

The meaning of each letter in the model name

SP
SCS

*1

*2

1

S

1

S

304

NPT

KL

NPT

Socket or Plug

Body Material

Thread TypeType

SymbolSize

SymbolSegment

SymbolMaterial

SymbolThreadSymbolMaterial

SP

-

1/8''

1

SocketS

SUS304304

Rc-

Fluororubber

F

X-100
or
FKM

SCS

SCS

1/4''

2

Plug

P

SUS316

316

NPT

NPT

Ethylene-propylene
rubber

E

EPT
or
EPDM

SCY

SCY

3/8''

3

UNS

UNS

Perfluoroelastomer

P

P

KalrezKL

KL

Series

Size

SCF

SCF

1/2''

4

SCT

SCT

3/4''

6

SCA

SCA

1''

8

SCE

SCE

Indicate on SP type only.

(19/32-18UNS)

Symbol indication of SCF
type is made in different
way.

Seal Material
Symbol Marking

Indicate on SP type only.

*1 : The symbol of SP is not stamped on the body.
*2 : The symbols of SCS, SCY, SCF, SCT, SCA, and SCE are stamped on the respective body.

4

SPStandard series
Featuress Body and valve springs are stainless steel (SUS304, SUS316). Body iselectropolished for enhanced corrosion reistance.
Sealing
material can be selected to suit your fluid and application, tosflexibly comply with your semiconductor production process requirments.

Types Abundant size variations allow choice to suit your application and flow rate.
s Each plug comes with a dust cap.
Specifications
Stainless steel (SUS304, SUS316) s SPE (electropolished)

Body materialSize

1/8" s 1/4" s 3/8" s 1/2" s 3/4" s 1"

Working pressure

0.2MPa {2kgf/cm2}

Pressure resistance

0.3MPa {3kgf/cm2}

Seal material

General purpose type with stainless steel

Seal material

Mark

Fluoro rubber

FKM (X-100)

Ethylene-propylene rubber

EPDM (EPT)

Perfluoroelastomer

P

KalrezKL
0˚C ~ +50˚C

Working temperature range

body and rubber seal. Electropolished bodyN s m {Kgf-cm}

Max. Tightening Torquefor enhanced corrosion resistance.

1/8-27NPT 1/4-18NPT 19/32Rc 1/8" Rc 1/4" 18UNS

Size

9
{92}

TorqueVarious end configurations.

14
{143}

Rc 3/8"Rc 1/2"

Rc 3/4"

Rc 1"

22
{224}

60
{612}

90
{918}

120
{1224}

20{204}

Interchangeability
Same size can be connected regardless of end configurations.

Size, body material, and seal material stamped.

(mm2)

Min. Cross-Sectional Area
Various seal materials are available
for a wide variety of chemicals.

Model

1SP

2SP

3SP

4SP

6SP

8SP

Min. Cross-Sectional Area

13

17

48

64

83

192

Flow Rate – Pressure Loss Characteristics
Test conditions

s &LUID  WATER s 4EMPERATURE  # ± 5˚C

1.0 {10}

2SP
Various end configurations.

3SP

1SP

0.1 {1}Size, body material, and seal material stamped.

Pressure loss in MPa {kgf/cm2}

Socket and plug both haveautomatic shut-off valve.

8SP
0.01 {0.1}

6SP
4SP

0
1

Flow rate in

5

10

/min

100

SP

Type

Parts List
Plug

Socket5
1

PN

Part namePlug body
Valve body assy
Valve spring
Valve support

4

3

Q’ty
1
1
1
1

2

4

3

8

9

1

6

7

Q’ty
1

Material
SUS304 or SUS316
SUS304 or SUS316
SUS304 or SUS316
SUS304 or SUS316
SUS304 or SUS316

2

Material
SUS304 or SUS316
SUS304 or SUS316
SUS304 or SUS316
SUS304 or SUS316

Remarks
ElectropolishedElectropolishedElectropolishedElectropolished

PN

Part name
Socket bodyBall
Sleeve spring
SleeveStop ringO-ringValve body assy
Valve spring
Valve support*1 : Seal material: Fluoro rubber (FKM), Ethylene-propylene rubber (EPDM),
Perfluoroelastomer (P), or Kalrez (KL).
*2 : 6 pieces for 1S, 2S, and 3S. 8 pieces for 4S, 6S, and 8S.

*2

1
1
1
1
1
1
1

Remarks
ElectropolishedElectropolishedElectropolishedElectropolished*1

ElectropolishedElectropolishedElectropolished

SUS304 or SUS316
SUS304 or SUS316
SUS304 or SUS316

Models and Dimensions

WAF : WAF stands for width across flat.

Plug

Socket

T
D

T

C
Lp

Hp

Container
capacity

Model

Hs

Ls

Mass
(g)

Dimensions (mm)Lp

C

Hp (WAF)

T (Female thread)

1P-304

For 10 ~ 20

1P-304-NPT

For 10 ~ 20

1P-304-UNS

For 10 ~ 20

2P-304

For 10 ~ 20

2P-304-NPT

For 10 ~ 20

2P-304-UNS

For 10 ~ 20

41

36

22

3P-304

For 100 ~ 200

60

40

25 *Hex.21

Rc 3/84P-304

For 100 ~ 200

115

44

28 *Hex.29

Rc 1/2

6P-304

For 100 ~ 200

216

52

36 *Hex.35

Rc 3/4

8P-304

For 100 ~ 200

352

62

40 *Hex.41

Rc 1

19

29

19 *Hex.14

Rc 1/8
1/8-27NPT

34

33

19

35

36

22 *Hex.17

Container
capacity

Mass(g)

For 10 ~ 20

82

Model
1S-304
1S-304-NPT

For 10 ~ 20

2S-304

For 10 ~ 20

Dimensions (mm)LsøD

Hs (WAF)

48

24

14

T (Female thread)

Rc 1/884

1/8-27NPT

Hex.21 19/32-18UNS
Rc 1/4
1/4-18NPT
Hex.21 19/32-18UNS

Rc 1/4
138

58

28

19

2S-304-NPT

For 10 ~ 20

3S-304

For 100 ~ 200

204

65

35

21

Rc 3/84S-304

For 100 ~ 200

424

72

45

29

Rc 1/2

6S-304

For 100 ~ 200

708

88

55

35

Rc 3/48S-304

For 100 ~ 200

1081

102 6541

Rc 1

1/4-18NPT* May have two spanner flats design instead of hex. nut depending on packing material. The appearances of SUS304 and 316 bodies are different (Above shown is that of SUS304).

Optional accessories

The thread dimensions of container side for the plug with
19/32-18UNS thread
19/32-18UNS

Dust cap for plug

(3.1)

Material : Polyethylene

Reference diagram

9 0.05B*Please inquire of us for thedetailed dimensions.

A

Model
Cap for 1P
Cap for 2P
Cap for 3P
Cap for 4P
Cap for 6P
Cap for 8P

ø8.3

Dimensions (mm)
A
24.5
27.3
31
34.5
44.7
52

B
23
26.8
30.8
37.5
46.3
53.4

Stainless steel container

When ordering, please inquire of us for the delivery because some of the
products may take a long production lead time.

6Standard series

SCS

Featuressª4HE BODY AND SPRING MATERIAL OF STAINLESS STEEL (SUS304), and valve ofTypefluoropolymer resin ensure excellent performance with various chemicals.
(SUS304) is electropolished for enhanced corrosion resistance.
Body
s
Plug
comes
with a dust cap.
sSpecifications
Electropolished stainless steel (SUS304)

Body materialSize

1/8" s 1/4" s 3/8" s 1/2" s 3/4" s 1"

Working pressure

0.2MPa {2kgf/cm2}

Pressure resistance

0.3MPa {3kgf/cm2}
Mark

Seal material

Sealmaterial

SocketO-ring

PerfluoroelastomerP

Ethylene-propylene rubber*

EPDM (%04)&LUORO RUBBER&+- (X-100)

Valve

Employed stainless steel body and&LUOROPOLYMER RESIN (1/8" s 1/4")&LUOROPOLYMER RESIN + SUS304 (3/8" s 1/2" s 3/4" s 1")
# ~ +#Working temperature range*Please inquire of us for seal materials other than perfluoroelastomer.

fluoropolymer resin valves.
N s m {Kgf-cm}

Max. Tightening Torque
Size
Torque1/8-27NPT 1/4-18NPT 19/32Rc 3/8" Rc 1/2" Rc 3/4"
Rc 1/8" Rc 1/4" 18UNS
9
14
20
22
60
90
{92}
{143}
{204}
{224}
{612}
{918}

Rc 1"
120
{1224}

Interchangeability

Size and seal material stamped.

$IFFERENT SIZES ARE NOT CONNECTABLE BUT THE SAME SIZE OF 3#3 TYPE #UPLA
can be connected each other regardless of end configurations.
0LUGS CAN BE CONNECTED WITH SOCKETS OF 3#9 TYPE OF THE SAME SIZE

(mm2)

Min. Cross-Sectional Area

Various seal materials are available
for a wide variety of chemicals.

SCS-1SP SCS-2SP SCS-3P

Model
Min. Cross-Sectional Area

Electropolished body ofsocket and plug.

15

23

28

SCS-4P

SCS-6P

SCS-8P

71

110

162

Flow Rate – Pressure Loss Characteristics
Test conditions

s &LUID  WATER s 4EMPERATURE  # ~ #1.0 {10}

Automatic shut-off valves inboth socket and plug. Employedfluoropolymer resin valves toensure excellent performancewith even under various chemicals.

Pressure loss in MPa {kgf/cm2}

0.1 {1}

SCY-1S x SCS-1P
SCS-1S x SCS-1P
SCY-2S x SCS-2P
SCS-2S x SCS-2P
SCY-3S x SCS-3P
SCY-4S x SCS-4P
SCY-6S x SCS-6P
SCY-8S x SCS-8P

0.01 {0.1}0.001 {0.01}
1

Flow rate in

7

10

/min

100

1000

SCS

Type

Parts List
Plug

1

4

3

2

Socket (SCS-1S, SCS-2S)

6

5

2

3 4

6

7

8

9

1

SCS-1P, 2P

5 4

3

1

2

6

SCS-3P~8P
PN

PN

Part namePlug body
Valve body Ass’y
Valve spring
Valve Support
Retaining ring
Dust cap for plug

Q’ty
1
1
1
1
1
1

Material
SUS304
PTFE , SUS304 *1
SUS304
SUS316L *2
SUS304
MDPE

Part name
Socket bodyBall
Sleeve spring
SleeveStop ringO-ringValve body
Valve spring
Valve support

Remarks
ElectropolishedElectropolishedElectropolished

Q’ty
1
6
1
1
1
1
1
1
1

Material
SUS304
SUS304
SUS304
SUS304
SUS304

Remarks
ElectropolishedElectropolishedElectropolishedElectropolished*3

PFA
SUS304
PFA

Electropolished*3 : Any of seal materilas (namely, fluoro rubber, ethylene-propylene rubber,and perfluoroelastomer) can be used as a seal material.

*1 : PFA for SCS-1P and SCS-2P.
*2 : PFA for SCS-1P and SCS-2P.

Models and Dimensions

WAF : WAF stands for width across flat.

Plug

Socket

T
D

T

C
Hp

Container
capacity

Model
SCS-1P

Lp

Ls

Dimensions (mm)

Mass
(g)

Lp

C

Hp (WAF)

17

29

19

Hex.14

For 10 ~ 20

T (Female thread)For 10 ~ 20

SCS-1P-UNS

For 10 ~ 20

34

SCS-2PFor 10 ~ 20

32

SCS-2P-NPT

For 10 ~ 20

29

SCS-2P-UNS

For 10 ~ 20

SCS-3P

Dimensions (mm)ModelContainer
capacity

Mass
(g)

Ls

øD

Hs (WAF)

T (Female thread)SCS-1S-NPT

For 10 ~ 20

84

48

24

14

1/8-27NPTSCS-2S-NPT

For 10 ~ 20

138

58

28

19

1/4-18NPT

Rc 1/8SCS-1P-NPT

Hs

1/8-27NPT33

Hex.2119

19/32-18UNS
Rc 1/434

22

Hex.1741

36

22

Hex.21

19/32-18UNS

For 100 ~ 200

61

40

25

Hex.21

Rc 3/8... indicates connection capability except for made-to-order products.

SCS-4PFor 100 ~ 200

114

44

28

Hex.29Rc 1/2

SocketSCS-6PFor 100 ~ 200

198

52

36

Hex.35

Rc 3/4SCS-8PFor 100 ~ 200

338

62

40

Hex.41Rc 1

1/4-18NPT

Connectable sockets with SCS Type plugs

Model

SCS Type

SCY Type-1S -2S -1S -2S -3S -4S -6S -8S(3.1)

The container for plug with 19/32-18UNS must be threaded
as indicated in the following
19/32-18UNS
reference diagram.
Reference diagram

SCS Type

Plug

-1P
-2P
-3P
-4P
-6P
-8P

9

0.05

*Please inquire of us for thedetailed dimensions.

ø8.3

Stainless steel container

When ordering, please inquire of us for the delivery because some of the
products may take a long production lead time.

8

SCY

SCY

Standard seriesType

N s m {Kgf-cm}

Max. Tightening Torque
Size

Type

1/8-27NPT 1/4-18NPT
Rc1/8"
Rc1/4"

Rc 3/8"Rc 1/2"

Rc 3/4"

14 {143}

22 {224}60 {612}90 {918} 120 {1224}

Torque9 {92}

Rc 1"

Interchangeability
Can be connected with plugs of SCS type of the same size.
See the interchangeability check list on page 8.

(mm2)Min. Cross-Sectional Area
Model

SCY-1S SCY-2S SCY-3S SCY-4S SCY-6S SCY-8S

Min. Cross-Sectional Area

15

23

28

71

110

162

Note:
If dusts are attached to the plug, seal materials inside the socket will bedamaged when coupled. Always keep the plug clean.

Parts list

Fluoropolymer resin packing seal and perfluoroelastomer

Socketpacking seal are used to reduce required connection load and

9

8

5

7

6

3

*1 : The all-in-one valve ass’y for SCY-1S
and SCY-2S is made of PFA.
*2 : SCY-1S and SCY-2S are notelectropolished.
*3 : The valve support for SCY-1S and
SCY-2A is made of PFA, but that for
SCY-8S is made of SCS14.
*4 : SCY-1S, 2S have no retaining ring.
In SCY-3S not a retaining ring but astopper is used.
*5 : The ball quanatity in SCY-1S, 2S, and
3S is 6 pcs. , and 8 pcs. in SCY-4S, 6S,
and 8S.
*6 : For SCY-4S only.

2 10 4 11 1 12 13

to achieve tight sealing.
Featuress The material of body and spring are of stainless steel (SUS304), whilethat of valve is of fluorine contained resin. The combination shows
excellent peformance with various types of chemicals.
s Body (SUS304) is electropolished for enhanced corrosion resistance.
s Flanged body makes it easy to operate even with gloves.

Specifications
Electropolished stainless steel (SUS304)

Body materialSize

1/8" s 1/4" s 3/8" s 1/2" s 3/4" s 1"

Working pressure

0.2MPa {2kgf/cm2}

Pressure resistance

0.3MPa {3kgf/cm2}

Socket packing seal

Perfluoroelastomer (Mark : P)

Valve

Fluoropolymer resin

Seal material

PN

Part name
Socket body
Seal material
Fluorine contained resin packing seal
Ball holder
Ball
Sleeve spring
SleeveCollar *6
Stop ring
Valve ass’y *1
Valve spring
Valve support
Retaining ring *4

Material
SUS304
Perfluoroelastomer
PTFE
SUS304
SUS304
SUS304
SUS304
SUS304
SUS304
SUS304, PTFE *1
SUS304
SUS316L *3
SUS304

*5

1
1
1
1
1
1
1
1

Models and Dimensions

0˚C ~ +50˚C

Working temperature range

Q’ty
1
1
1
1

Remarks
ElectropolishedElectropolishedElectropolishedElectropolishedElectropolishedElectropolishedElectropolished *2
ElectropolishedElectropolished *2
Electropolished

WAF : WAF stands for width across flat.

Socket*If you need other seal material than Perfluoroelastomer, please consult with us.

TDRegarding the flow rate - pressure loss characteristics of SCY type, pleaserefer to the flow rate - pressure loss characteristics of SCS type on page 7.

Electropolished.

Ls
Fluoropolymer
resin valve.

Model

Flanged body foreasy operation.

Fluoropolymer resin
packing seal.

9

Double sealed withfluoropolymer resin packing
seal and perfluoroealstomer
packing seal.

Container
capacity

SCY-1SFor 10 ~ 20

SCY-1S-NPT

For 10 ~ 20

SCY-2SFor 10 ~ 20

Hs

Dimensions (mm)

Mass
(g)

Ls

116

(48) 29

øD

Hs (WAF)

18

T (Female thread)

Rc 1/8
1/8-27NPT

180(58) 33

22

Rc 1/4

SCY-2S-NPT

For 10 ~ 20

SCY-3SFor 100 ~ 200292(65) 3927

Rc 3/8SCY-4SFor 100 ~ 200

519(72) 5035

Rc 1/2SCY-6SFor 100 ~ 200

862(88) 59

41

Rc 3/4

SCY-8SFor 100 ~ 200

1360 (102) 68

50

Rc 1

1/4-18NPTSpecifications

Semi-standard series

SP - GN

Body material

Stainless steel (SUS304) s SPE (Electropolished)

Size

Type

The SP-GN type is another version of SP type
series, but no interchangeability with SP type.

1/8" s 1/4" s 3/8" s 1/2" s 3/4"

Working pressure

0.2MPa {2kgf/cm2}

Pressure resistance

0.3MPa {3kgf/cm2}
Seal material

Mark

Seal material

Fluoro rubber

FKM (X-100)

PerfluoroelastomerP

Ethylene-propylene rubber

EPDM (EPT)

KalrezKL

Seal material

Mark

Working temperature range

0˚C ~ +50˚C

End configurations

Rc thread s NPT thread s 19/32-18UNS female thread

Interchangeability
Features

When SP type plug is inserted into SP-GN type sockets Even if inserted into SP type, the valve of SP-GN type will not open.
s Body and valve springs are stainless steel (SUS304).

The inner diameter of the SP-GN socket
is smaller than the outer diameter of SP
type plug. Therefore they cannot be
connected.

Body is electropolished for enhanced corrosion resistance.

s Seal material can be selected to suit your fluid and application, to flexibly
comply with your semiconductor production process requirements.

s Abundant size variations allow choice to suit your application and flow rate.
s To distinguish itself from the SP type, it has a single groove in the plughexagon and the wrench face of the socket.

Plug

When SP-GN type plug is inserted into SP type socket
In this case inner diameter of SP typesocket is smaller than the outer dimaterof SP-GN type plug. Therefore theycannot be connected.

SocketWhen ordering, please inquire of us for the delivery because some of the
products may take a long production lead time.

Specifications

Semi-standard series

SML

Body material

Stainless steel (SUS304) s Electropolished or pickled-and-passivatedSize

1/8" s 1/4"

Working pressure

Type

Sockets with L-shaped male thread end
configuration are interchangeable with plugs
for SP type.

0.2MPa {2kgf/cm2}
0.3MPa {3kgf/cm2}

Pressure resistance
Seal material

Mark

Seal material

Fluoro rubber

FKM (X-100)

PerfluoroelastomerP

Ethylene-propylene rubber

EPDM (EPT)

KalrezKL

Seal material
Working temperature range

0˚C ~ +50˚C

End configurations

7/16-20UNF, 1/8-27NPT, 1/4-18NPT

Mark

Models and Dimensions
SocketFeatures

IN sideOUT sides Sockets are interchageable with plugs of SP type. L-shaped male threadDD

end configuration enhances operability and minimizes piping space.

s Body and valve springs are made of stainless steel (SUS304).
Body is electropolished or pickled and passivated for enhanced corrosion
resistance.

Lss Seal materials can be selected to suit your fluid and application, to flexibly
comply with your semiconductor production process requirements.

Dimensions (mm)ModelContainer
capacity

Mass
(g)

Ls

øD

IN side1SML

For 10 ~ 20

119

52

29

OUT side2SML

For 10 ~ 20

158

59.5

32

s To distinguish the IN side from the OUT side, it has a single groove inthe sleeve flange of the IN side socket.

Ls

Interchangeabilitys It is compatible with an SP type plug (see page 6).
s Same size can be connected together irrespective of the type of thread.
Different sizes cannot be connected together.

When ordering, please inquire of us for the delivery because some of the
products may take a long production lead time.

10

SCT

Standard series
Featuress Polytetrafluoroethylene (PTFE) body gives excellent resistance to chemicals.

Types Automatic shut-off valves in both socket and plug prevent fluid outflow
from lines on disconnection.
Nos dissolution of metal ions from part in contact with liquid ensures
excellent reliability.
Alls components are cleaned, assembled, inspected and then packed in aclean room.
Appropriate
model can be selected from abundant variety of sizes tossuit your application and flow rate.

Specifications
Polytetrafluoroethylene (PTFE)

Body materialSize

1/4" s 3/8" s 1/2" s 3/4" s 1"

Working pressure

0.2MPa {2kgf/cm2}

Pressure resistance

0.3MPa {3kgf/cm2}

Socket O-ring

FEP-covered fluoro-rubber

Valve

Fluoropolymer resin

Seal material

Employed is polytetrafluoroethylene+# ~ +#Working temperature range(PTFE) for the body.
Max. Tightening Torque As a Guide
After wrapping tape sealant on male threads and tightening the Cupla
firmly with your hand, tighten the Cupla with wrench as follows:
A wide range of end configurations.

1/4" s 3/8" s 1/2" s 3/4" s 1" Size

1 3/4 to 2 turns

Overtightening may damage the thread, resulting in leakage.

FEP-covered fluoro-rubber O-ring.

Interchangeability
PTFE-FEP covered spring.

Different size socket and plug cannot be connected each other.

(mm2)

Min. Cross-Sectional Area

Polytetrafluoroethylene (PTFE)
body gives excellent resistanceto chemicals.

Model

SCT-2SP SCT-3SP SCT-4SP SCT-6SP SCT-8SP

Min. Cross-Sectional Area

12

34

54

103

225

Flow Rate – Pressure Loss Characteristics
Special springof resin.

s &LUID  WATER s 4EMPERATURE  # ± #

Test conditions
0.2 {2}

SCT-6SPSCT-3SP
SCT-2SP0.1 {1}0.08 {0.8}Both socket and plug have automatic shut-off
valve made of fluoropolymer resin.

SCT-4SP

0.05 {0.5}

A wide range of end configurations.

Note:
The export trade control ordinance of Japanese Ministry of Economy, Trade andIndustry regulates that export of SCT-4SP or bigger size SCT models must be
approved by the ministry before exportation. In order to receive approval forexport we are requested to give detailed information of user to the ministry.

11

Pressure loss in MPa {kgf/cm2}

0.03 {0.3}0.02 {0.2}0.01 {0.1}

SCT-8SP

0.003 {0.03}

12

Flow rate in

/min

3

5

8 10

20

30

50

80 100 150

SCT

Type

Parts List
Plug

Socket5

PN

Part Name
Plug body
Valve
Valve spring
Spring holder
Ring

4

3

Q’ty
1
1
1
1
1

2

1

5

Material
PTFE
PFA
PTFE
PTFE
PTFE

Remarks

PN

4

3

2

7

6

8

1

Part Name
Socket body
Sleeve spring
Ball
SleeveStopperO-ringBackup ring
Valve
Valve spring
Spring holder

Q’ty
1
1
1
1
1
1
1
1
1

MaterialPTFE
SUS304
PTFE
PTFE
PTFE
FKM
PTFE
PFA
PTFE
PTFE

Ring

1

PTFE

*1 : The 2S, 3S, 4S, and 6S have six balls. The 8S has ten balls.

*1

Models and Dimensions

9

10

11

Remarks
PTFE-FEP covered

FEP-covered

WAF : WAF stands for width across flat.

Plug

Socket
T

C

D

T

A

Hp

Model

Mass
(g)

SCT-2P
SCT-2P-NPT
SCT-3P
SCT-3P-NPT
SCT-4P
SCT-4P-NPT
SCT-6P
SCT-6P-NPT
SCT-8P
SCT-8P-NPT

Dimensions (mm)
Lp

Hs

Ls

Lp

A

øC

Hp (WAF)

43

59

30.5

27.5

24

77

68.5

33.5

34.5

30

91

69.5

37.5

39.5

36

160

78.5

45

48

41

300

112

60.5

59

50

T (Female thread)

Rc 1/4

Model

Ls

øD

Hs (WAF)

101

89.5

41

19

156

102

49.5

24

192

107

54.5

30

340

123

68

36

770

172.5

82

46

SCT-2S

1/4-18NPT

SCT-2S-NPT

Rc 3/83/8-18NPT

SCT-3S
SCT-3S-NPT

Rc 1/2
1/2-14NPT
Rc 3/4
3/4-14NPT
Rc 1
1-11.5NPT

SCT-4S
SCT-4S-NPT
SCT-6S
SCT-6S-NPT
SCT-8S
SCT-8S-NPT

Dimensions (mm)

Mass
(g)

T (Female thread)

Rc 1/4
1/4-18NPT
Rc 3/83/8-18NPT
Rc 1/2
1/2-14NPT
Rc 3/4
3/4-14NPT
Rc 1
1-11.5NPT* Rc threads and NPT threads are available as end connections.
* Both plug body and socket body with Rc threads have V groove on the body. NPT threads type has no groove on the body.
* Please check with us on flange and other end connections.

Optional accessories
Dust Cap for Socket

C

E

B

Dust Cap for Plug

D

A

Model

Dimensions (mm)
A

B

øC

For SCT-2P
37.0
24
34.5
For SCT-3P
39.0
26
38.5
For SCT-4P
43.5
29
48.6
For SCT-6P
52.0
37.2
For SCT-8P
71.5
53*The caps for SCT-2P and SCT-8P are made by cutting work.
Because of this the shapes of them differ from those of other models.

Model
For SCT-2S
For SCT-3S
For SCT-4S
For SCT-6S
For SCT-8S

Dimensions (mm)
D

øE

50
53
58
67
72.5

19.5
24.5
29.5
39.5
48.0

12

SCT- KType

Keyed Cupla / Special Series

Keyed Cupla / Special Series

SCT- K

Featuress Key angle can be varied according to chemical type in order to prevent
wrong connection.

s Rotating keyed sleeve makes the key alignment easy and absorbs tube twisting.
s All components except sleeve spring are made of fluoropolymer resin toTyperesist chemicals and to prevent dissolution of metal ions from parts.

Specifications
Polytetrafluoroethylene (PTFE)

Body material

1/4" s 3/8" s 1/2" s 3/4" s 1"

Size
Working pressure

0.2MPa {2kgf/cm2}

Pressure resistance

0.3MPa {3kgf/cm2}

Socket O-ring

FEP-covered fluoro-rubber

Valve

Fluoropolymer resin

Seal material

Working temperature range+5˚C ~ +50˚C

Parts list
Plug
6

2

5

1

4

3

Employed is polytetrafluoroethlene (PTFE)
for the body.
PN

Rotating sleeve makes key alignment easy.

Part namePlug body
Key ring P
Valve body
Valve spring
Spring holder
Ring

Q’ty
1
1
1
1
1
1

Material
PTFE
PTFE
PFA
PTFE
PTFE
PTFE

Socket
2

4

3

7

6

5

8

1

9 10 11

Entirely made of fluoropolymer
resin except sleeve spring.

PN

Flanged body makes it easy tooperate even with gloves.

Key angle can be varied according
to chemical type.

Q’ty
1

Part name
Socket bodyBall
Sleeve spring
Sleeve K
StopperO-ringBackup ring
Valve body
Valve spring
Spring holder
Ring

*3

1
1
1
1
1
1
1
1
1

MaterialPTFEPTFE
SUS304 *1
PTFE
PTFE
FKM *2
PTFE
PFA
PTFE
PTFE
PTFE

*1 : PTFE-FEP-covered SUS304.
*2 : FEP-covered fluoro-rubber.
*3 : 6 pcs. for 2S, 3S, 4S, 6S and 10pcs. for 8S.

Combination example of key angle and chemical
Key angle

Note:
The export trade control ordinance of Japanese Ministry of Economy, Trade andIndustry regulates that export of SCT-K type socket and plug with 1/2" threads
or bigger size threads must be approved by the ministry before exportation. In
order to receive approval for export we are requested to give detailed informationof user to the ministry.

* Name of chemicals is for reference only.

13*Chemical

45˚
Nitric acid60˚
Sulfuric acid75˚
Ammonia
Acetic acid90˚Hydrochloric acid105˚Hydrofluoric acid120˚Ten models up to 180˚ at increments of 15˚Features

SCA

Special seriess Just push in the plug to socket for simple and secure connection.
s Automatic shut-off valves in both socket and plug minimize fluid spill out on

Types Polytetrafluoroethylene body gives excellent resistance to chemicals.
s No dissolution of metal ions from the flow path ensures excellent reliability.
s All components are cleaned, assembled, inspected, and packed in a clean room.

disconnection.

Specifications
Polytetrafluoroethylene (PTFE)

Body material
Size

1/2"

Working pressure

0.2MPa {2kgf/cm2}

Pressure resistance

0.3MPa {3kgf/cm2}

Seal material

Socket

Perfluoroelastomer s Fluoropolymer resin

Plug

Fluoropolymer resin+10˚C ~ +50˚C

Working temperature range

Push-to-connect design. Employed is polytetrafluoroethylene(PTFE) for the body. Spillage is minimized when disconnected.

When ordering, please inquire of us for the delivery because some of the
products may take a long production lead time.

Features

SCE

Special seriesTypes Designed for 200-liter polyethylene container.
Special structure protects the plug from damaging in delivery of container.

s Plug made of polyethylene has corrosion resistance.
s Just push in the plug to socket for simple and secure connection.
s Automatic shut-off valves in both socket and plug minimize fluid spill out on
disconnection.

s Varied key angles according to chemical type eliminate risk of chemical mix up.
s Sleeve can be turned for position adjustment and absorption of tube twisting.
s All components are cleaned, assembled, inspected and then packed in a clean
room.

Specifications
Body material

SocketPolytetrafluoroethylene (PTFE)

Plug

High-density polyethylene (HDPE)

Size

0.2MPa {2kgf/cm2}

Pressure resistance

0.3MPa {3kgf/cm2}

Seal material

Designed for 200-liter polyethylene container. Plug

3/4"

Working pressure

Socket

Perfluoroelastomer s Fluoropolymer resin

Plug

Fluoropolymer resin, Fluoro-rubber or Ethylene-propylene rubber

Working temperature range+10˚C ~ +50˚C

is made of polyethylene for corrosion resistance.

When ordering, please inquire of us for the delivery because some of the
products may take a long production lead time.

14

Standard series

SCF

Featuressª!LL PARTS MADE OF FLUOROPOLYMER RESIN / RINGS IN PARTICULAR ARE&%0 COVERED FLUORO RUBBER WITH EXCELLENT CHEMICAL RESISTANCE AND NO

TypeRUBBER ELUTION

sª5NIQUE NEW TECHNIQUES SUCH AS hINJECTION MOLDINGv hTUBE CONNECTIONSYSTEMv AND hNUT TYPE PLUG MOUNT DESIGNv ARE USED TO PREVENT THE
GENERATION OF PARTICLES INCESSANT HEADACHE FOR SEMICONDUCTOR PARTS
MANUFACTURERS
sª4O CONNECT WITH A PLUG JUST PUSH THE SOCKET ON TO IT $ISCONNECTION IS
DONE IN SIMPLE AND ONE HANDED BUTTON OPERATION

sª5NIQUE hDOUBLE LOCKv MECHANISMv PREVENTS ACCIDENTAL DISCONNECTION
OF SOCKET AND PLUG

sª"RANCHED TUBE PORT IMPROVES OPERABILITY AND REDUCES REQUIRED PIPINGSPACE

sª0LUGS COME WITH A DUST CAPSpecifications&LUOROPOLYMER RESIN (0&!)

Body material

All plastic model. Fluoropolymer resin(PFA) body is injection molded.

Size

1/4" s Working pressure

-0A [KGFCM}

Pressure resistance-0A [KGFCM}
Socket O-ring&%0 COVERED FLUORO RUBBER

Valve&LUOROPOLYMER RESIN

Seal material+# ~ +#Working temperature range

Interchangeability
4UBE CONNECT SYSTEM IS EMPLOYED3PECIAL SPRING OF RESIN ARE USED

3#&  TYPE FOR THE ). SIDE AND 3#&  TYPE FOR THE /54 SIDE CANNOT BECONNECTED TOGETHER

(mm2)

Min. Cross-Sectional Area
0USH TO CONNECT OPERATION
/NE HANDED BUTTON OPERATIONFOR DISCONNECTIONModelMin. Cross-Sectional Area

)NJECTION MOLDED FLUOROPOLYMERRESIN (0&!) BODY IS USED TO
PREVENT THE GENERATION OF
PARTICLESSCF-2SPSCF-3SP





Flow Rate – Pressure Loss Characteristics&%0 COVEREDFLUORO RUBBER

Test conditions

s &LUID  WATER s 4EMPERATURE  # ± #

0.2 {2}

SCF-2SP0.1 {1}0.08 {0.8}0.05 {0.5}!UTOMATIC SHUT OFF VALVES IN BOTH SOCKETAND PLUG &LUOROPOLYMER RESIN VALVES AREEMPLOYED FOR VARIOUS CHEMICALS.UT TYPE PLUG MOUNT DESIGN

Pressure loss in MPa {kgf/cm2}

3PECIAL SPRING OF RESIN ARE USEDSCF-3SP

0.03 {0.3}0.02 {0.2}0.01 {0.1}0.003 {0.03}
1

Flow rate in

15

2

/min

3

5

8

10

15

20

SCF

Type

Parts List
Plug
5

1

Socket

6

4

3

2

7

5 3

4

2

1
11

10

PFA tubePart APart A

PN

Part namePlug body
Valve P
Valve spring
Spring holder
O-ringNut
Plug cap

Q’ty
1
1
1
1
1
1
1

Material
PFA
PFA
PTFE
PFA
FKM
ETFE
HDPE

Remarks

PN

6Part name
Socket bodyO-ringBackup ring
Lock plate
Push button
Valve S
Valve springO-ringEnd cap
FerruleFerrule nut

FEP-covered

Q’ty
1
1
1
2
2
1
1
1
1
1
1

Material
PFA
FKM
PTFE
ETFE
ETFE
PFA
PTFE
FKM
PFA
PTFE
PFA

Models and Dimensions

7 8

9Remarks
FEP-covered

FEP-covered

WAF : WAF stands for width across flat.

Plug

Socket

D

D

T

C

E

Lp

Applicable tube

Ls

Model

Container
capacity

Mass(g)

SCF-2P-M26

For 10 ~ 20

33

SCF-3P-M32

For 10 ~ 2050

Dimensions (mm)Dimensions (mm)ModelContainer
capacity

Mass
(g)

Ls

D

E

Applicable tube

(53.7) Hex.30 x ø32.5 (31.2) M26 x 1.5

SCF-2SL-N08

For 10 ~ 20

76

77

(45)

33

ø6 x ø8(57.7) Hex.36 x ø39 (35.2) M32 x 1.5

SCF-3SL-N10

For 10 ~ 20

116

85

(51)

39

ø8 x ø10

Lp

D (WAF)C

T (Female thread)

Optional accessories

Reference diagram

The thread dimensions of container side for the plug.
ø33.5

ø27.5

ø26

ø21
M32 x 1.5

30˚

ø24.5

13

11.5

14

18.5

16.3

6.5

R1.5

Model

Dimensions (mm)
A

30˚

ø20.9

12.5

13

11.5

A

14

18.5

ø16.2

ø6

16.3

B

ø19.7

6.5

M26 x 1.5

12.5

Dust Cap for Socket

R1.5

ø8

øB

ø15.9

ø20.6
ø33

Cap for SCF-2S

60

29.5

ø27

Cap for SCF-3S

64

34.5

For SCF-2P-M26

For SCF-3P-M32
For tolerrance and other specific dimensions, consult us.

16

SCF

Type

Features of the nut-type plug mounting mechanism of the SCF typeThe use of a nut system in installing
the plug on the container achieves
the following advantages:
Easy plug installation.
B

Reduced particle generation.

FEP-coated O-ringO-rings are FEP-covered fluoro-rubber with excellent
chemical resistance and no rubber elution.

A

The shaft sealing structure (part A & B) prevents leaks
even when the nut is loosened slightly.

Plug-retaining plate for the SCF type (optional)

The use of a retaining plate keeps the plug nut tight.
The plug nut can be used reliably and for a long time
without retightening.

Plug-retaining plate

Plug-retaining plate mounted

How to attach a tube to the socket
2 Groove the tube

1 Cut the tube
Cut the tube (PFA) at right to thetube angles with a cutter blade ora knife.

3 Inserting the tube

Insert the tube to the hilt into the special jig (see thebelow figure.) and keep the jig’s cutter blade pressed
down while you rotate the tube about 1 1/2 turns.
It will give you complete groove on the tube good for
ferrule mount. Special jigs to suit different tube sizes
are available in the market as indicated below.

Insert the grooved tube firmly into the Cupla. In thisprocedure, be careful not to take out the ferrule nut.
FerruleFerrule nut
Tube

90

˚
Note ferrule position (taper facing towards Cupla)
Special jig

Grooving the tub

Special jig
Socket type
SCF-2SL-N08
SCF-3SL-N10

Tube sizeø8 x ø6
ø10 x ø8

Jig Model No.
T-8
T-10

*You may buy the jigs through Nitto Kohki.

17

4 Tightening the nut
After lightly tightening the ferrule nut with your fingers,
further turn it another 1 1/2 turns with a spanner tool.
Be careful not to over-tighten.

SCF Straight

SCF

Standard series

TypeParts List
Plug
6 4 5 71

32

Straight
Type
PN

Part namePlug body
Valve body P
Valve spring
Spring holder
O-ringAdapter
Nut

The SCF straight type is another version of
SCF series. Straightened body works as anintermdediate joint.

Q’ty
1
1
1
1
1
1
1

Material
PFA
PFA
PTFE
PFA
FKM
PTFE
ETFE

Part A

6

Q’ty
1
1
1
2
2
1
1
1
1

Material
PFA
FKM
PTFE
ETFE
ETFE
PFA
PTFE
FKM
PTFE

Remarks

FEP-covered

Socket
4

5 3

2

7 8

1 9

Featuress All parts made of fluoropolymer resin. O-rings in particular are FEP-covered
fluoro-rubber with excellent chemical resitance and no rubber elution.

s Unique new technique of “injection molding” is used to prevent the generationof particles, incessant headache for semiconductor parts manufacturers.

Part As To connect with a plug, just push the socket on to it. Disconnection is done
in simple and one-handed button operation.
s Unique “double-lock mechanism” prevents accidental disconnection ofsocket and plug.

PN

Part name
Socket bodyO-ringBackup ring
Lock plate
Push button
Valve body S
Valve springO-ringAdapter

Specifications
Fluoropolymer resin (PFA)

Body material
Size

Remarks
FEP-covered

FEP-covered

1/4" s 3/8"

Working pressure

0.2MPa {2kgf/cm2}

Pressure resistance

0.3MPa {3kgf/cm2}

Socket O-ring

FEP-covered fluoro-rubber

Valve

Fluoropolymer resin

Plug
Hp

T

+5˚C ~ +50˚C
BWorking temperature range

WAF : WAF stands for width across flat.

D

Seal material

Models and Dimensions

Interchangeabilitys Can be connected with SCF type (See page 16).
s Same size can be connected together regardless of the end configulations.

C

A

Lp
Dimensions (mm)

Model

Mass

SCF-2P-3

53(67.2) (31.2) 32.5 Hex.30

24

27

Rc 3/8

SCF-3P-4

79(71.2) (35.2) 39

30

33

Rc 1/2

(g)

Lp

C

øD

Hp (WAF) A (WAF)

Hex.36

øBT (Female thread)

Socket
T

A

D

Hs

E

Model
When ordering, please inquire of us for the delivery because some ofthe products may take a long production lead time.

Ls
Dimensions (mm)

Mass
(g)

Ls

øA

Hs (WAF)

DE

SCF-2S-3

83

(92)

27

24

(45)

33

Rc 3/8

SCF-3S-4

124(102.5)

33

30

(51)

39

Rc 1/2

T (Female thread)18

Cupla for piping of water and fluids for temperature control
Minimizes pressure drop andincreases flow volume drastically.
Compared with conventional
SP Cupla, flow volume has been
increased by up to 80%.
Both socket and plug have built-in automatic shut-off valves.
High flow rate type to increase cooling effect.
Quick connection and disconnection of cooling pipes.
Compact and space-saving design.
Installation and maintenance can be done within a short time.

Specifications

Flow Rate – Pressure Loss Characteristics

Model

HFL-3P / HFL-3S

HFL-2P / HFL-2S

Water s heat transfer fluids

Applicable fluids

Test conditions

0.1
{1.0}

HFL-4P / HFL-4S

s &LUID  WATER s 4EMPERATURE  # ± 5˚C

Stainless steel

Body material
Working pressure *1

1.0MPa {10kgf/cm2}

Pressure resistance *2

1.5MPa {15kgf/cm2}

HFL-3SP

Ethylene-propylene rubber [EPDM (EPT)]

HFL-2SP

Made-to-order item: Fluoro rubber [FKM (X-100)]

Working temperature range-40˚C~+150˚C (Ethylene-propylene rubber) / -20˚C~+180˚C (Fluoro rubber)

Automatic shut-off valve

Both socket and plug have built-in automatic shut-off valves
High Flow Cupla

Interchangeable Cupla
Size

1/4''

3/8''

1/2''

Max. Tightening Torque

14N s m {140kgf s cm}

22N s m {220kgf s cm}

60N s m {600kgf s cm}

Min. Cross-Sectional Area

33mm2

59mm2

93mm2

*1 : This shows the normal allowable fluid pressure under continuous use.
*2 : This shows the maximum pressure that will not affect the performance of the Cupla even if there is a temporary increase to reach the pressure.

Pressure loss in MPa {kgf/cm2}

Seal material

0.01
{1.0}

HFL-4SP

0.001{0.01}

1
Flow rate in

10

100

/min

Models and Dimensions

WAF : WAF stands for width across flat.

SocketPlugT

HFL-3S

D

D

T

C
Hp

Lp

Model

Application

Mass (g)HFL-2P
HFL-3P
HFL-4P

R 1/4
R 3/8
R 1/2

28
43
82

19

Hs

Ls

Dimensions (mm)

Lp
30
31
37.5

C
16.5
18
22.5

øD
18.5
23
32

Hp (WAF)
Hex.17
Hex.21
Hex.29T
Rc 1/4Rc 3/8Rc 1/2

Model

Application

Mass (g)HFL-2S
HFL-3S
HFL-4S

R 1/4
R 3/8
R 1/2

99
150
211

Dimensions (mm)

Ls
(47)
(49)
60

øD
26
32
35

Hs (WAF)
19
24
29

T
Rc 1/4Rc 3/8Rc 1/2

Cupla for piping of water and fluids for temperature control
High Flow Cupla and bite typefitting are united to realize
efficient piping.

BI
Type

Stainless steel bite type coupling

Easy connection with stainless steel pipe.
With an optional hose connection kit, connection toplastic hose is possible.
Connection with various tubes can be done if anappropriate insert to the tube is used.

An optional
nut is requiredfor hoseconnection

Nut for hoseconnection (Option)

An optional
insert is required
for tubeconnection

Stainlesssteel pipe

Insert for tube
connection (Option)

Specifications

Flow Rate – Pressure Loss Characteristics
Test conditions

0.1
{1.0}

CO-1P-BI 1/8 HFL-2P-BI 1/4 HFL-2P-BI 3/8 HFL-3P-BI 3/8 HFL-3P-BI 1/2 HFL-4P-BI 1/2
CO-1S-BI 1/8 HFL-2S-BI 1/4 HFL-2S-BI 3/8 HFL-3S-BI 3/8 HFL-3S-BI 1/2 HFL-4S-BI 1/2

Models &LUID  WATER s 4EMPERATURE  # ± 5˚C

HFL-3SP-BI

CO-1SP-BI

Water s Heat transfer fluids

Applicable fluids
Body material

Stainless steel
1.0MPa {10kgf/cm2}

Working pressure *1

Ethylene-propylene rubber [EPDM (EPT)]

Seal material

Made-to-order item: Fluoro rubber [FKM (X-100)]

Working temperature range-40˚C~+150˚C (Ethylene-propylene rubber) / -20˚C~+180˚C (Fluoro rubber)

Automatic shut-off valve
Interchangeable Cupla

Both socket and plug have built-in automatic shut-off valvesCompact Cupla

High Flow Cupla*1 : This shows the normal allowable fluid pressure under continuous use.
*2 : This shows the maximum pressure that will not affect the performance of the Cupla even if there is a temporary increase to reach the pressure.

Pressure loss in MPa {kgf/cm2}

1.5MPa {15kgf/cm2}

Pressure resistance *2

0.01
{1.0}

HFL-4SP-BI

HFL-2SP-BI
0.001{0.01}

0.1
Flow rate in1/minModels and Dimensions

10

100

WAF : WAF stands for width across flat.

Socket

Plug
Hp

Hs

A

Bs

Bp

D

D

A

T

T

C
Lp

Model
CO-1P-BI 1/8
HFL-2P-BI 1/4
HFL-2P-BI 3/8
HFL-3P-BI 3/8
HFL-3P-BI 1/2
HFL-4P-BI 1/2

Application(Pipe size)

1/8''
1/4''
3/8''
3/8''
1/2''
1/2''

Ls
Dimensions (mm)Lp
(42.4)(51.9)(53.4)(54.8)(59)(68.7)

C
11.3
16.5
16.5
18
18
22.5

A
(13)
(15.4)
(17)
(17)
(23)
(23)

øD
15.5
23
23
29.5
29.5
32

øBp
3.18
6.35
9.53
9.53
12.7
12.7

Hp (WAF) T (WAF)
Hex.9/16" Hex.7/16"
Hex.13/16" Hex.9/16"
Hex.13/16" Hex.11/16"
Hex.1 1/16" Hex.11/16"
Hex.1 1/16" Hex.7/8"
Hex.1 1/8" Hex.7/8"

Model
CO-1S-BI 1/8
HFL-2S-BI 1/4
HFL-2S-BI 3/8
HFL-3S-BI 3/8
HFL-3S-BI 1/2
HFL-4S-BI 1/2

Application(Pipe size)

1/8''
1/4''
3/8''
3/8''
1/2''
1/2''

Dimensions (mm)Ls
(45.2)(54.9)(56.5)(60.3)(64.6)(73.2)

A(13)(15.4)
(17)
(17)
(23)
(23)

øD
16.5
26
26
32
32
35

øBs
3.18
6.35
9.53
9.53
12.7
12.7

Hs (WAF) T (WAF)
Hex.9/16" Hex.7/16"
Hex.13/16" Hex.9/16"
Hex.13/16" Hex.11/16"
Hex.1 1/16" Hex.11/16"
Hex.1 1/16" Hex.7/8"
Hex.1 1/8" Hex.7/8"

20

Cupla for piping of water and fluids for temperature control
Compact 17.5mm outer diameter,
yet socket and plug have built-in
automatic shut-off valves.
Compact yet operator friendly sleeve design.
For small bore piping from temperature control
piping to scientific equipment.
Body materials in stainless steel or brass,excellent in corrosion resistance.
Four types of end configuration enable suitability
with a wide range of piping applications.
Flow Rate – Pressure Loss Characteristics

Specifications
CO-1PM / CO-1SM

Model

CO-1PF / CO-1SF

CO-40PN / CO-40SN

Applicable fluids

Water and fluids for temperature control

Body material

Brass, Stainless steel (SUS 304)

Working pressure *1

1.0MPa {10kgf/cm2}

Pressure resistance *2

1.5MPa {15kgf/cm2}
CO-40SN x CO-40PN

Pressure loss in MPa {kgf/cm2}

Working temperature range-#~+# (Fluoropolymer resin) / -#~+# (Ethylene-propylene rubber)

Automatic shut-off valve

Both socket and plug have built-in automatic shut-off valves
1/8''

ø4 x ø6

1/8''

Brass

ø6 x ø8

5N s m {51kgf s cm}

Stainless steel

9N s m {92kgf s cm}

Min. Cross-Sectional Area

8.8mm2

7N s m {71kgf s cm}

8.8mm24.9mm28.8mm2*1 : This shows the normal allowable fluid pressure under continuous use.
*2 : This shows the maximum pressure that will not affect the performance of the Cupla even if there is a temporary increase to reach the pressure.

0.1
{1.0}

CO-1SM x CO-1PM

0.01
{1.0}

1
Flow rate in5

WAF : WAF stands for width across flat.

SocketSM Type (Male thread)

T

Bs

D
Bp

D

Plug
PM Type (Male thread)

Hp

Lp

Hs

Ls

Body material, Mass (g)Brass Stainless steel

Dimensions (mm)CO-1PM

Rc 1/820

Plug

SocketT

PF Type (Female thread)SF Type (Female thread)

Hp (WAF)
Hex.14

T
R 1/8

øBp
5.5

CO-1SM

Rc 1/8

34

32

Ls
(38)

øD
17.5

Hs (WAF)
Hex.14

T
R 1/8

øBs
5.5

T

D

D

19

øD
15.5

Application

Dimensions (mm)Application

Lp
(36)

Model

Body material, Mass (g)Brass Stainless steel

Model

Hp

Model

Application

CO-1PF

R 1/8

Lp

Ls

Body material, Mass (g)Brass Stainless steel

25

Dimensions (mm)

Lp
(36)

23

øD
15.5

Hp (WAF)
Hex.14T
Rc 1/8

Model

Application

CO-1SF

R 1/8

Body material, Mass (g)Brass Stainless steel

39

36

Hs

Dimensions (mm)

Ls
(38)

øD
17.5

Hs (WAF)
Hex.14

Plug

SocketPN Type (For connection to tube)

SN Type (For connection to tube)

T
Rc 1/8

Hs2

Bs

D
Bp

D

Hp2

Hp1

Lp

Ls

Model

Application Body material, Mass (g)(Tube)
Brass Stainless steel

CO-40PN
CO-60PN

ø4 x ø6
ø6 x ø8

21

10

/min

Models and Dimensions

T

s &LUID  WATER s 4EMPERATURE  # ± #

CO-1SF x CO-1PF

Available on request : Ethylene-propylene rubber [EPDM (EPT)]

Size

Test conditions

CO-60SN x CO-60PN

Fluoropolymer resin

Seal materialMax.
Tightening
Torque1.0{10}CO-60PN / CO-60SN

23
25

22
24

Lp
(38.5)(37.5)

Dimensions (mm)Hp1 (WAF) Hp2 (WAF)

øD
15.5
15.5

Hex.14 Hex.10
Hex.14 Hex.13

øBp
2.5
4.2

Model

Application Body material, Mass (g)(Tube)
Brass Stainless steel

CO-40SN
CO-60SN

ø4 x ø6
ø6 x ø8

38
40

35
37

Ls
(40.5)(39.5)

Hs1

Dimensions (mm)Hs1 (WAF) Hs2 (WAF)

øD
17.5
17.5

Hex.14 Hex.10
Hex.14 Hex.13

øBs
2.5
4.2

*Brass type and stainless steel type Cuplas are in the same dimensions.

Body Material Selection Table (For reference)
The selection of appropriate body material for the Cupla is closely related to its usage application, the type of fluid run through, its concentration (%),
the pressure, its working environment, etc. So the material must be carefully considered in order to use the Cupla efficiently and obtain its full performance.
Since there are some metals that should not be used with certain fluids, please refer to this table when making your selection.
Suitable
Not suitable under certain conditions*The body material must be selected and specified by the user.

Fluids
A

B

C

D

E

F

Fluoropolymer Stainless
resin
steel

FluidsFluoropolymer Stainless
resin
steel

Acetic acid○○

Ferric sulfate○△

Acetic anhydride○○

Formaldehyde○○

Acetone○○Formalin

○

○

Air

○

○

Formic acid○○

Aluminium fluoride○

G

Glycerine○○

Aluminum chloride

○

△

H

Hexane○○Aluminum sulfate○△

Hydrobromic acid○

Ammonia○○

Hydrochloric acid○

Ammonium nitrate○○

Hydrofluoric acid○○

Ammonium phosphate○○

Hydrogen○○Ammonium sulfate○

Hydrogen peroxide○○

Aniline○○Hydrogen sulfide○△

Arsenic acid

○

○

L

Lactic acid○○

Barium chloride○

M

Magnesium chloride○

Barium hydroxide○○

Methyl alcohol○○

Barium sulfide○○

Naphthalene○○

Benzene○○Nickel chloride○○

Benzine○○Nitric acid○△

Boric acid○○

Nitrobenzene○○

Butane○○O

Oxygen○○Butyl acetate

○

○

P

Phenol○○Calcium chloride○

Phosphoric acid○○

Calcium hydroxide○○

Potassium chloride○△

Carbon dioxide○○

Potassium hydroxide○○

Carbon disulfide○○

Pure water○○

Carbon tetrachloride○○

Salt water○△

Caustic soda○○

Sodium carbonate○○

Chlorine○○

Sodium chloride○○

Chromic acid○○

Sodium hydroxide○○

Citric acid○○

Sodium nitrate○○

Cresol acid○○

Sodium phosphate

○

△

○

Sodium sulfate○○

Dowtherm

F

N

S

Drinking water○○

Sulfuric acid

○

Ether

○

○

Sulfurous acid○

Ethyl acetate

○

○

T

Tannic acid

Ethyl alcohol

○

○

Z

Zinc chloride

Ethylene chloride○

Ethylene glycol○

Ferric chloride

○

○
○

○

22

Seal Material Selection Table (For reference)
For seal parts in the Cupla (the important parts that prevent leaking to the outside), it is important to select the most appropriate sealmaterial to suit the property and temperature of the fluid. It is so important that wrong selection may not only completely malfunction the
Cupla but also cause an unexpected accident.
*The rubber material must be selected and specified by the user.

○

Acetone

─

◎

B

23

◎

─

Dichlorophenol

◎

─

◎

Butadiene○△

Diethanolamine

─

○

◎

Butane◎─

Diethylene glycol◎◎

FluidsD

Perfluoroelastomer─Ethylenepropylene
rubberAcetic anhydrideBromine water

B

Fluororubber◎FluidsSeal Material
Perfluoroelastomer○

Ethylenepropylene
rubber

Perfluoroelastomer─FluororubberEthylenepropylene
rubberAcetaldehyde

FluidsA

Seal Material

FluororubberSeal Material

Acetonitrile─○

Butane (liquid)◎─

Ethanol◎◎

Acetophenone

─

◎

◎

Butane (2.2-, 3-dimethyl)◎─Ethyl acetate─○

Acetylacetone

─

◎

◎

Butanol (Butyl alcohol)◎○

Ethyl alcohol

◎

◎

◎

Acetyl chloride◎─Butyl acetate─○Ethyl benzene

◎

─

◎

Air (50˚C)◎◎

Butyl stearate◎─Ethyl cellulose─○

Aluminium bromide (65˚C)◎◎

Butylene◎─Ethyl chloride◎◎

Aluminium chloride (65˚C)◎◎

Butyraldehyde─○Ethylene glycol◎◎

Aluminium nitrate (65˚C)─◎Calcium acetate─◎Ethylene trichloride

◎

─

◎

C

E

○

○

Calcium acetate (65˚C)─◎Fluorine (dry)──Calcium carbide──Formaldehyde

─

─

◎

Calcium carbonate──

Furfural

─

○

─

◎

Calcium hydroxide (65˚C)◎◎

Glycerine (65˚C)◎◎

Glycol◎◎Helium◎◎Aluminium sulfate (65˚C)

◎

◎

Amine

─

○

Ammonia (anhydrous)─Ammonia (cool)

○

F

G

Ammonia (65˚C)─○Calcium nitrate (65˚C)◎◎

Ammonia gas─◎Calcium perchlorate──Ammonium carbonate─◎Calcium sulfate──

Heptane──Ammonium chloride─◎Calcium sulfate (65˚C)──Hexane──Ammonium hydroxide○◎

Calcium sulfite◎

─Hydrogen◎◎H

Ammonium nitrate (65˚C)─◎Carbitol○○

Hydrogen bromide──Ammonium phosphate (65˚C)─◎Carbon dioxide gas (65˚C)○○

Hydrogen peroxide (30%)○○

Ammonium sulfate (65˚C)─◎Carbon disulfide◎─Iron chloride◎◎

Ammonium sulfite─◎Carbon monoxide (65˚C)◎◎

Iron nitrate (65˚C)◎◎

Amyl acetate

─

△

○

Carbon tetrachloride◎─Iron sulfate (10%)──

Amyl alcohol

○

◎

○

Chlorine gas◎─Isooctane◎─

Aniline△○◎

Chlorine (liquid)──Isopropyl acetate─○

Arsenic trichloride──Chlorine water◎○

Isopropyl alcohol◎◎

Isopropyl ether──Kerosene◎─L

Liquid glass (Sodium silicate)

─

─

M

Magnesium chloride (65˚C)

◎

◎

◎

Magnesium hydroxide (65˚C)

◎

◎

◎

Magnesium nitrate

─

─

◎

◎

Magnesium sulfate (65˚C)◎◎

Cresol (50˚C)◎─Maleic anhydride◎─

Diacetone alcohol─◎

Methanol─◎Dibenzyl ether

─○

Methyl bromide

◎

─

◎

◎

Chloroacetone

─◎Barium hydroxide (65˚C)◎◎

Chlorobenzene◎

─Barium nitrate (65˚C)◎─Chloroform◎

─Barium sulfate (65˚C)──

Chlorophenol◎

─Barium sulfide◎◎

Copper chloride (65˚C)◎

Benzaldehyde─◎Copper cyanide◎

Benzene◎─

Copper sulfate

Benzyl alcohol (65˚C)◎○

Benzyl chloride◎─

Bromine

◎

─

D

◎

K

Barium chloride

◎

I

◎

◎

◎

◎

○

◎

◎

◎

○

◎

How to read the selection tables

Note:: Practically no harm, and can be used (Excellent)

When selecting the seal material, please consider the following suggestions carefully:: Some harm may be inevitable but can be used under restrictions (Good)

1. If there is no comment in the column of the fluid name, the condition of the fluid
is under saturation at room temperature.
2. Please check with us for applications at a high fluid temperature or with different
fluid concentrations.
3. For applications related to foods, please order separately specifing the detailed
applications.

: Should not be used (Unsuitable)

N

O

P

◎

Potassium phosphate──Potassium silicate

◎

◎

△

Methyl ethyl ketone

─◎Methyl propyl ketone

─○Potassium sulfate◎◎

Vinyl chloride resin◎─

Methyl salicylate─○

Potassium thiosulfate

─

─

W

Water (65˚C)

◎

◎

◎

Methylene bromide

○

─

○

Propyl acetate

─

○

X

Xylene◎─◎

Methylene chloride

◎

△

◎

Propyl alcohol (65˚C)

◎

◎

Z

Zinc chloride (65˚C)◎◎

Monobromobenzene◎

─Propylene◎─Zinc sulfate (65˚C)◎◎

Monochlorobenzene──

Pyridine─○

Monoethanolamine

─○

Sodium acetate─◎Naphthalene◎─Sodium aluminate─Nickel acetate

─◎Sodium carbonate◎◎

Nickel acetate (65˚C)─◎Sodium chloride◎◎

Nickel ammonium sulfate──

Sodium chloride (salt water)◎◎

Nickel chloride◎◎

Sodium cyanide─◎Nickel nitrate──

Sodium hydroxide (50%)△◎

Nickel sulfate──

Sodium hydroxide (50˚C)─◎Nitrobenzene

○

─

◎

Sodium hypochlorite◎○

Nitrogen (gas)

◎

◎

◎

Sodium iodide──Normal heptane◎

─Sodium metaphosphate◎◎

Normal pentane◎

─Sodium nirate◎◎

Octyl alcohol◎◎

Sodium nitrite

─◎Oleic acid (65˚C)○─Sodium peroxide◎◎

Ortho-dichlorobenzene◎

─Sodium phosphate──Oxygen (gas)◎◎

Sodium plumbate

─

─

Ozone

◎

◎

Sodium silicate◎◎

Pentane (2-,3-,4-methyl)──Sodium sulfate◎◎

Phenol◎─

Sodium sulfide◎◎

Phosphorus──Sodium sulfite◎◎

Phosphorous oxychloride (dry)◎◎Sodium thiosulfate──

Phosphorous oxychloride (wet)◎◎Sulfur◎◎Phthalic anhydride──

Sulfur chloride (dry)◎─

Potassium acetate (65˚C)─◎

Sulfur dioxide◎◎

Potassium bichromate◎◎

Sulfur tetroxide◎─Potassium carbonate──Tetraethyl lead◎─

Potassium cyanide◎◎

Tetralin◎─T

Potassium hydroxide (65˚C)─◎Titanium terachloride◎─Potassium nitrate (65˚C)◎◎

Toluene (Toluol)△

─Ethylenepropylene
rubber─

FluidsFluororubber◎◎Potassium nitrite

Perfluoroelastomer

Methyl chloride

S

Ethylenepropylene
rubberEthylenepropylene
rubber◎◎FluororubberFluororubber─P

FluidsSeal Material

Methyl butyl ketone

FluidsM

Seal Material
Perfluoroelastomer

Seal Material

T

Triethanolamine

─

○

V

Vinyl acetate─◎Vinyl chloride◎△

Perfluoroelastomer: Should be avoided if at all possible (Not recommended)

◎

◎

◎

◎

◎

24

Safety Guide

Be sure to read this page before using Cupla.

s $O NOT CONNECT  DISCONNECT UNDER DYNAMIC
pressure or static residual pressure.

s $O NOT STRIKE THE TIP OF AN AUTOMATIC SHUT OFF
valve with a hammer or the like. This may
cause leakage or malfunction. Consult us foralternative way of releasing the residualpressure inside.

s 4HE ENTRY OF FOREIGN MATTERS IN THE FLUID TO BE
used may cause a breakdown. Fluid must be
cleaned through filters before reach to Cuplas.

1

2

3

s 3ELECTING THE WRONG TYPE OF SEAL MATERIAL
may cause a leak. In making your selection,
check the compatibilityof the seal material
with the type of fluid
and temperature.

s Remember that dirt, scratches or other damageon the sealing surface may cause a leak.
s )F THERE IS A RISK OF DIRT STICKING TO THE PLUG
sealing while the CUPLA is
disconnected, use a
specified dustproof cap.

s 7HEN INSTALLING THE #UPLA DO NOT APPLY AN
excessive tightening force. This may cause
damage. Tighten itwith the appropriate
torque.

4

56

s $O NOT PRESSURIZE THE SOCKET OR PLUG WHILE
disconnected.

s $O NOT USE THE #UPLA WITH A
tool or machine exposed toexcessive vibrations or
impact. It would be
dangerous.

s $O NOT SUBJECT THE #50,! TO EXCESSIVE
bending, tension or revolution.
It would be dangerous.

7

8

9

s )N CLEANING THE #50,! DO SO IN A MANNER
that will not affect the seal material.
(Before cleaning, consult us.)s $O NOT USE CONTINUOUSLY AT THE LOWEST OR
highest working temperature. In this caseplease consult us.

Pressure$YNAMIC PRESSURE

ids

Flu

s 4HE #50,! IS USUALLY GREASED TO REDUCE THE
load imposed when the plug is inserted. But
THE 3%-)#/. #50,! IS GREASE FREE TO PREVENT
grease from entering into thefluid system. To reduce sliding
resistance (insertion load) and
PROTECT AN / RING APPLY THE FLUID
to be used or pure water to the/ RING OR PLUG
(the sliding part of
THE / RING) before
use.

foreignmatters

10

Continuous
operation

11

12

Performance Standards and Contractual Control Limit
Please understand that the performance chart and outside dimensions indicated in this catalogue do not include the tolerances in mass production,and that they indicate the average as a guide for selecting models and for technical service for users.

Beware of imitations
Recently on the market, there have appeared similar products that invite misidentification or confusion with Nitto Kohki Cuplas,or such products that claim to have compatible mating parts.
Connection with a coupling of another brand that seems connectable to a Nitto Kohki Cupla may cause
1) imperfect connection or disconnection2) reduced airtightness
3) impaired pressure resistance or durability4) declined flow rate, and result in unexpected accidents.
Nitto Kohki cannot accept resposibility for any accident that may result by mixed use with the coupling of another brand. Nitto Kohki Cuplars are producedwith their own unique tolerances and precision under strict quality control, and are not interchangeable with other couplings that are not under such
TOLERRANCE 4HEREFORE CONNECTION TO OTHER BRAND OF COUPLING MAY END UP WITH ABRUPT BREAKDOWN OR PERSONAL INJURY 0LEASE BE SURE TO CHECK FOR OUR MARKS
below, which are always inscribed on Nitto Kohki Cupla products,
when you order and purchase.

25

Safety Guide

Warning / Cautions

Before using a CUPLA, please read the instructions given below and be sure to observe all precaustions.

Warnings Do not use Cuplas continuously under any pressure exceeding the rated working pressure. This may cause a leak or damage.
s Use only within the range of rated temperature. Otherwise this may damage the seal material inside and cause leakage.
s The fluid media used must be compatible with the body and seal materials of Cupla.
s Any spillage or droplet of the fluid used must only be handled by a qualified technician engaged in such fluids.
s Do not connect/disconnect under dynamic pressure or static residual pressure.
s When any pressure tank is used, be sure to reduce the nitrogen gas pressure to 0MPa {0kgf/cm2} and reduce the tank inner pressure

similarly to 0MPa {0kgf/cm2}, then disconnect the CUPLA on the liquid side.
Connect the CUPLA on the liquid side before connecting the CUPLA on the nitrogen gas side.
s Do not connect with other brands’ quick connective couplings.
s Wear protective equipment to avoid any spillage or droplet of the fluid.

Cautionss Prior to initial use, the seal material and body material should be tested to confirm the material suitablility for the fluid.
s Apply a fluoropolymer resin sealant tape on male tapered pipe threads to ensure no leak.
s Mount stainless steel Semicon Cupla so as not to bring about galling of threads.
s Small amount of fluid will spill out at disconnection. In order to avoid any foreseeable danger, purge out the fluid inside the Cupla withnitrogen gas or something similar before disconnection.
s Do not use as a swivel joint.
s Use Cuplas only for the purpose of quick connective couplings.
s The fluoropolymer resin is soft. Threfore take care not to scratch, dent or otherwise damage it.

The seal has a particular risk to become a source of leakage.
s Do not apply any artificial impact, bend, or tension other than necessary in connection and disconnection.

This may cause leakage or damage.
s Do not pressurize the socket or plug with fluid while left disconnected. This may cause possible valve blow out.
s After the Cupla has been used for a long time as connected and pressured, its performance may decline because it is made offluoropolymer resin. To ensure a long life for the Cupla, keep it under no pressure unless necessary.
s The O-ring of the socket must be replaced periodically because it is consumables.
s Be sure to mount a proper dust cap while the Cuplas are left disconnected.
s Do not disassemble.
s Check up on Cuplas periodically. If anything unusual is found, stop using the Cuplas until properly repairedor replaced with new ones.
s Apply the fluid used or pure water on the O-ring or plug (cylindrical part where the O-ring slides over)to reduce sliding friction (insertion load) and protect the O-ring from wear & tear (SP type) (SCS type).
s Do not use any product of any size other than an applicable tube size (SCF type).
s Consult us for the end configurations of the plug (SCF type).

26

Production sites with high quality
and reliability achieved by integrated
production and a flexible supply system.
The large-scale production sites having a flexible mass-production capacity run fully every day.
With their advanced integrated system ranging from parts processing to product assembly to inspection ofcompleted products, these sites offer a perfect supply system capable of meeting market needs.

Tochigi Nitto Kohki Co., Ltd.

“CUPLA” is a registered trademark of Nitto Kohki Corporation.

Overseas Affiliates/Offices
NITTO KOHKI U.S.A. INC.
TEL:+1-630-924-5959 FAX:+1-630-924-1174

NITTO KOHKI AUSTRALIA PTY. LTD.
TEL:+61-7-3340-4600 FAX:+61-73340-4640

NITTO KOHKI EUROPE CO., LTD.(UK)TEL:+44-1923-239-668 FAX:+44-1923-248-815

NITTO KOHKI CO., LTD. SINGAPORE
BRANCH
TEL:+65-6227-5360
FAX:+65-6227-0192

NITTO KOHKI DEUTSCHLAND GMBH
TEL:+49-7157-22436
FAX:+49-7157-22437

NITTO KOHKI CO., LTD. BANGKOKREPRESENTATIVE OFFICE
TEL:+66-2-632-0307
FAX:+66-2-632-0308

NITTO KOHKI CO., LTD. SHANGHAIREPRESENTATIVE OFFICE
TEL:+86-21-6415-3935 FAX:+86-21-6472-6957
NITTO KOHKI CO., LTD. SHENZHENREPRESENTATIVE OFFICE
TEL:+86-755-8375-2185 FAX:+86-755-8375-2187
NITTO KOHKI CO., LTD. SEOULREPRESENTATIVE OFFICE

Specifications and designs are subject to change at any time without notice.

Head Office

DISTRIBUTED BY

9-4, Nakaikegami 2-chome,
Ohta-ku, Tokyo 146-8555 Japan
Phone : +81-3-3755-1111 Fax : +81-3-3753-8791

E-mail : overseas@nitto-kohki.co.jp
URL : www.nitto-kohki.co.jp/ePrinted in Japan

09DA03- 1