For High PressureSpecifications
Stainless steel (SUS304)

Body material

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

Size (Thread)

HSU Cupla
Stainless steel Cupla for high pressure up to 21.0 MPa {214 kgf/cm2}
Working pressure

Valve structure

Applicable fluids

MPa

kgf/cm2

barPSI

Working pressure

21.0

214

210

3050

Seal material
Working temperature range

Seal material

Mark

Workingtemperature range

Hydrogenated nitrile rubber *HNBR-20˚C to +120˚C• The seal materials used in HSU Cupla are not suitable for Freon gas.

Max. Tightening TorqueNm {kgf • cm}

Size (Thread)

21.0
21.0 MPa{214 kgf/cm 2}

Pressure unit

TorqueTwo-way shut-off

Water

Hydraulic oil

GasThe flow volume is increased by
between 14 to 44% while at the sametime the coupled length is reduced byat least 10% compared with the S210
Cupla.
• Body material is excellent corrosion resistant stainless steel (SUS304).
Suitable for use in tough/harsh environments such as offshore applications.
• Sleeve stopper mechanism can be engaged by rotating sleeve after connection.
• Despite having a stainless steel body, the working pressure, 21.0 MPa, of
HSU Cupla is comparable to that of special steel body Cuplas such as HSP
Cupla series.
• Both socket and plug have built-in automatic shut-off valves that prevent fluid
outflow on disconnection.
• Hydrogenated nitrile rubber (HNBR) is used as a seal material for wide varietyof liquids.

1/4"

3/8"

1/2"

3/4"

28 {286}

35 {357}

70 {714}1"

100 {1020} 180 {1836}

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

Interchangeability
Different size socket and plug cannot be connected to each other.

(mm2)

Min. Cross-Sectional Area
Model
Min. cross-sectional area

HSU-2SPHSU-3SPHSU-4SPHSU-6SPHSU-8SP

27.1

48.2

84.2

143.6

221.2

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.
Model

HSU-2SPHSU-3SPHSU-4SPHSU-6SPHSU-8SP

0.7

1.5

3.6

6.3

10.9

Volume of air admixture

Volume of Spillage per Disconnection May vary depending upon the usage conditions.
Model( mL)(mL)

HSU-2SPHSU-3SPHSU-4SPHSU-6SPHSU-8SP

0.6

1.7

3.0

6.8

11.2

Volume of spillage

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

Pressure loss in MPa {kgf/cm2}

1.0{10}
HSU-2S x HSU-2P
HSU-3S x HSU-3P
HSU-4S x HSU-4P
HSU-6S x HSU-6P
HSU-8S x HSU-8P
0.1{1}

0.01{0.1}
11010010001001000Flow rate in L/min[Test conditions]• Fluid : Water• Temperature : 18˚C

Pressure loss in MPa {kgf/cm2}

1.0{10}
HSU-2S x HSU-2P
HSU-3S x HSU-3P
HSU-4S x HSU-4P
HSU-6S x HSU-6P
HSU-8S x HSU-8P
0.1{1}

0.01{0.1}
1

Flow rate in L/min

87

10

HSU Cupla
Models and Dimensions

Plug

WAF : WAF stands for width across flats.

Female thread

SocketFemale thread
T

D

DTCHL

LH

Model

Application

Mass (g)HSU-2P
HSU-3P
HSU-4P
HSU-6P
HSU-8P

R 1/4
R 3/8
R 1/2
R 3/4
R1

4986
152295481

Dimensions (mm)

L
45.5
51.5
59
74
83

C27.5
323951.5
58

H (WAF)
Hex.19Hex.24
Hex.30
Hex.38
Hex.46

øD2126.5334251T
Rc 1/4Rc 3/8Rc 1/2
Rc 3/4
Rc 1

Model

Application

Mass (g)HSU-2S
HSU-3S
HSU-4S
HSU-6S
HSU-8S

R 1/4
R 3/8
R 1/2
R 3/4
R1

142
255
479
953
1432

Dimensions (mm)

L
63
71.5
84106
118

øD
28354555
65

H (WAF)
1924303846T
Rc 1/4Rc 3/8Rc 1/2
Rc 3/4Rc 1

Sleeve Stopper Mechanism

Easy to operate sleeve stopper mechanism enhances operator safety.
Atconnection
CutoutSocketPlug

Align the cutout in the sleevewith the ball stopper, and pull
the sleeve to connect the plug.

Stopper

LockedSleeve stopper mechanism can be engaged by rotating
sleeve after connection.

Locking
the sleeve
Without alignment of the cutout
with the ball stopper disconnection
cannot be made.

Accidental disconnection is prevented.
LockedThe stopper is marked with blue for visual understanding.

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

88