For Low Pressure

Compact Cupla

Specifications
Stainless steel (SUS 304)

BrassBody material

SizeThread

1/8"

Tube barb

Polyamide tube : ø4 x ø6, ø6 x ø8
Polyolefin tube : ø4 x ø6, ø6 x ø8
Fluorine contained resin tube : ø4 x ø6, ø6 x ø8

Pressure unitMPa

kgf/cm2bar

PSI

Small multipurpose type for low pressure lines

Working pressure

1.01010145

Working pressure

Seal material
Working temperature range

Seal material

MarkWorking
temperature range

Remarks

Fluoro rubber

FKM-20˚C to +180˚C Standard material

Ethylene-propylene rubberEPDM-40˚C to +150˚C Available on request

Valve structure

Applicable fluids

1.01.0 MPa{10 kgf/cm2}

Two-way shut-off

AirWater

Note: Max working pressure and working temperature range of nut type depend on the tube material and its
dimensional tolerance.

Max. Tightening TorqueCompact 17.5 mm outer diameter,
yet socket and plug have built-in
automatic shut-off valves.
• Both socket and plug have built-in automatic shut-off valves.
• Compact size with max. outer dia. 17.5 mm.
• For small bore piping from temperature control piping to scientific equipment.
• Body materials in stainless steel (SUS304) or brass, excellent in corrosion
resistance.
• Four types of end configuration enable suitability with a wide range of pipingapplications.

Nm {kgf • cm}

Size (Thread)
Torque

1/8"

Tube barb

Brass

5 {51}

5 {51}

Stainless steel

9 {92}

7 {71}

Flow Direction
Fluid flow can be bi-directional when socket and plug are connected.

Interchangeability
Socket and plug of Compact Cupla can be connected regardless of end configurations.

(mm2)

Min. Cross-Sectional Area

CO-1SM x CO-1PM CO-1SF x CO-1PF CO-40SN x CO-40PN CO-60SN x CO-60PN

ModelMin. crosssectional area

8.8

8.8

4.9

8.8

1.3 x 10-1 Pa {1 x 10-3 mmHg}

Suitability for Vacuum
Socket only

Plug only

When connected--

Operational

Admixture of Air on Connection May vary depending upon the usage conditions.

( mL)

0.34

Volume of air admixture

Volume of Spillage per Disconnection May vary depending upon the usage conditions.

(mL)

0.23

Volume of spillage

Flow Rate – Pressure Loss Characteristics[Test conditions]• Fluid : Water• Temperature : 20˚C5˚C1.0{10}CO-1SF x CO-1PF
CO-60SN x CO-60PN

Pressure loss in MPa {kgf/cm2}

CO-40SN x CO-40PN

0.1{1}

CO-1SM x CO-1PM
0.01{0.1} 1

Flow rate in L/min

23510

Compact Cupla
Models and Dimensions

WAF : WAF stands for width across flats.

PM type (Male thread)

PlugSocket

SM type (Male thread)
T

B

B

D

DT

H

H
L

Model

Application

CO-1PM

Rc 1/8

L

Body material, Mass (g)BrassStainless steel

20

19Dimensions (mm)L(36)

H (WAF)
Hex.14

øD15.5

T
R 1/8

øB
5.5

PF type (Female thread)

Plug

Model

Application

CO-1SM

Rc 1/8

SocketBody material, Mass (g)BrassStainless steel

3432

Dimensions (mm)L(38)

H (WAF)
Hex.14

øD17.5

T
R 1/8

øB
5.5

SF type (Female thread)
T

D

DTH

H
L

Model

Application

CO-1PF

R 1/8

L

Body material, Mass (g)BrassStainless steel

2523

Dimensions (mm)

L(36)

øD
15.5

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

PN type (For connection to tube)

Plug

Model

Application

CO-1SF

R 1/8

SocketBody material, Mass (g)BrassStainless steel

3936

Dimensions (mm)L(38)

H (WAF)
Hex.14

øD
17.5

T
Rc 1/8

SN type (For connection to tube)
H2B

B

DDH2

H1H1LL

ModelApplication(Tube)

CO-40PN
CO-60PN

ø4 x ø6
ø6 x ø8

Body material, Mass (g)BrassStainless steel

2325

2224

Dimensions (mm)L(38.5)(37.5)

øD
15.5
15.5

H1 (WAF) H2 (WAF)
Hex.14 Hex.10
Hex.14 Hex.13

øB
2.5
4.2

ModelApplication(Tube)

CO-40SN
CO-60SN

ø4 x ø6
ø6 x ø8

Body material, Mass (g)BrassStainless steel

3840

35
37

Dimensions (mm)L(40.5)(39.5)

øD
17.5
17.5

H1 (WAF) H2 (WAF)
Hex.14 Hex.10
Hex.14 Hex.13

øB2.5
4.2

No difference in dimensions of brass and stainless steel Cupla

Application Example

Built-in automatic shut-off valve
17.5 mm OD sleeve

Built-in automatic shut-off valve
For branch piping

For branch piping

Before use, please be sure to read “Safety Guide” described at the end of this book and “Instruction Sheet” that comes with the products.

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