For High Pressure

Specifications
Special steel (Nickel plated)

Body material

1/4", 3/8", 1/2", 3/4", 1"

Size (Thread)

Flat Face Cupla F35
For hydraulic pressures up to 35.0 MPa {357 kgf/cm2} with flat contact face
Working pressure

Valve structure

Applicable fluid

35.0
35.0 MPa{357 kgf/cm2}

Pressure unitMPa

kgf/cm2

bar

PSI

Working pressure

35.03573505080

Mark

Workingtemperature range

Remarks

Seal material
Working temperature range

Seal material

Fluoro rubber

FKM (X-100) -20˚C to +180˚C Standard material

Nitrile rubber

NBR (SG)Max. Tightening TorqueNm {kgf • cm}

Size (Thread)
TorqueTwo-way shut-off(Non-Spill)-20˚C to +80˚C Made-to-order item

1/4"

3/8"

1/2"

3/4"

28 {286}

40 {408}

80 {816}

1"150 {1530} 250 {2550}

Hydraulic oil

Flat contact face design reduces spill
upon disconnection.
• Flat contact face design makes it easy to clean dust and foreign mattersadhered on the surface of coupling so as to prevent them from entering inside
and thus causing faulty operation of connection or disconnection.
• Flat contact face design minimizes air admixture during connection to keep
the possible malfunction of equipment caused by the air bubbles in thehydraulic line at minimum level.
• Push-to-connect operation.
• Sleeve stopper mechanism is engaged by rotating sleeve after connection. It preventsaccidental disconnection even when vibration or impact is applied to the Cupla.
• The special design reduces pressure loss considerably, and especially suited tohydraulic applications in which big flow is needed. Both socket and plug havebuilt-in automatic shut-off valves that prevent fluid spill out on disconnection.

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

Interchangeability
Different sizes can not be connected each other.
(mm2)

Min. Cross-Sectional Area
Model

F35-2SP

F35-3SP

F35-4SP

F35-6SP

F35-8SP

21.2

32.2

78.5

149.6

227.0

Min. cross-sectional area

Suitability for Vacuum
Not suitable for vacuum application in either connected or disconnected condition.
Admixture of Air on Connection May vary depending upon the usage conditions.
Model( mL)

F35-2SP

F35-3SP

F35-4SP

F35-6SP

F35-8SP

0.1

0.10.20.30.4

Volume of air

Flow Rate – Pressure Loss Characteristics[Test conditions]• Fluid : Hydraulic oil • Temperature : 30˚C 5˚C• Fluid viscosity : 32 x 10-6 m2/s • Density : 0.87 x 103 kg/m3

Pressure loss in MPa {kgf/cm2}

1.0 {10}F35-2S x F35-2P
F35-3S x F35-3P
F35-4S x F35-4P
F35-6S x F35-6P
F35-8S x F35-8P
0.1 {1}0.01 {0.1}1101001000

Flow rate in L/min

Unique flat contact face designPrecautions for use
Do not connect / disconnect Cuplas when pressure is applied or remaining.
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Flat Face Cupla F35
Models and Dimensions

Plug

WAF : WAF stands for width across flats.

Female thread

SocketFemale thread
TDDTCL

H

L

Model

Application

Mass (g)F35-2P

R 1/4

F35-3P
F35-4P

Dimensions (mm)ModelApplication

LCøD

H(WAF)

T

106

58

18.8

21.5

19

Rc 1/4

F35-2S

R 1/4

R 3/8

190

67.5

24

27

24

Rc 3/8

F35-3S

R 1/2

290

78

28.5

31.7

27

Rc 1/2

F35-4S

F35-6P

R 3/4

460

84.5

314036

Rc 3/4

F35-8P

R11000108

3950

46

Rc 1

Mass (g)HDimensions (mm)LøD

H(WAF)

T

182( 57.5)( 28 )

26 x ø28.5

Rc 1/4R 3/8320( 70 )

( 34)

30

Rc 3/8R 1/2

490( 78 )(41)

36

Rc 1/2

F35-6S

R 3/4

815( 85)(49 )46 x ø50

Rc 3/4

F35-8S

R1

1520

(104)

( 63 )55

Rc 1

Application Example

Snow plow

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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