For Medium PressureSpecifications

Hot Water Cupla
HW Type

Valve structure

Two-way shut-off* This product is designed for use with waterfrom -20˚C to +180˚C. When used with otherfluids, check the suitability of the seal andbody material.
Water

Plug : R 1/4, R 3/8, R 1/2 / Socket : Rc 1/4, Rc 3/8, Rc 1/2

Pressure unitMPa

kgf/cm2bar

PSI

Working pressure

2.02020290

Seal material

MarkWorking
temperature range

Remarks

Fluoro rubber

FKM (X-100)-20˚C to +180˚C Standard materialMax. Tightening Torque

Applicable fluids *2.02.0 MPa{20 kgf/cm2}

Brass (Nickel plated)

Size (Thread)

Seal material
Working temperature range

For temperature control piping
Working pressure

Body material

Nm {kgf • cm}

Size (Thread)

1/4"

3/8"

1/2"

Torque9 {92}

12 {122}30 {306}

On installation or removal always use correct size spanner/wrench on the hexagon section of socket/plug body.

Steam

Flow Direction

The most suitable rubber for hot water
adopted. Best suited for hot water
applications such as plastic moldings.
• The safety lock function prevents accidental disconnection caused byvibration or impact.
• Nickel plated on the liquid contact parts to improve corrosion resistance.
• The socket has double O-ring for improved seal.

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

Interchangeability
Different sizes of sockets and plugs cannot be connected to each other.
SP Cupla Type A and HW Type Cuplas of the same size can be connected to each otherregardless of end configurations.
However, SP Cupla Type A has different seal material characteristics, so the productspecification and durability will differ. Conduct performance evaluation test under your actual
operating environment and conditions within range of the working conditions of the product.

(mm2)Min. Cross-Sectional Area
Model

HW-2S-F × HW-2P-M

HW-3S-F × HW-3P-M

HW-4S-F × HW-4P-M

265173Min. Cross-sectional area

1.3 × 10-1 Pa {1 × 10-3 mmHg}

Suitability for Vacuum
Socket only

Plug only

When connected--Operational

Admixture of Air on Connection
Model
Volume of air

HW-2S-F × HW-2P-M

HW-3S-F × HW-3P-M

HW-4S-F × HW-4P-M

1.2

2.7

3.9

Volume of Spillage per Disconnection
Model
Volume of spillage( mL)

May vary depending upon the usage conditions.

May vary depending upon the usage conditions.

(mL)

HW-2S-F × HW-2P-M

HW-3S-F × HW-3P-M

HW-4S-F × HW-4P-M

0.8

2.1

3.2

Flow Rate – Pressure Loss Characteristics[Test conditions]• Fluid : Water• Temperature: 25˚C ± 5˚C

1.0{10}HW-3S-F × HW-3P-M

Pressure loss in MPa {kgf/cm2}

HW-2S-F × HW-2P-M
0.1{1}

HW-4S-F × HW-4P-M
0.01{0.1}

0.001{0.01}
110100Flow rate in L/min

Safety lock function (Sleeve lock)
How to lock

Unlocked

77

LockedSleevePlug

Slide the Lock Ring in the
direction of the arrow A androtate it simultaneously.
When the Stopper is alignedwith the shallower cutout on
the Lock Ring, the Cupla will
Connected state
be locked.
(before lock)A

How to unlock
SocketStopperLock Ring

Slide the Lock Ring in the
direction of the arrow A androtate it simultaneously.
When the Stopper is alignedwith the deeper cutout on
the Lock Ring, the Cupla will
Connected state
be unlocked.
(locked)AStopper

Lock RingHot Water Cupla HW Type
Models and Dimensions

Plug

WAF : WAF stands for width across flats.

Male thread

SocketFemale thread
TDDTHCHLL
Model

Application

Mass (g)HW-2P-M
HW-3P-M
HW-4P-M

Rc 1/4Rc 3/8Rc 1/24171
149

Dimensions (mm)

L(44)
( 51)
( 62)

C222528

øD
18.5
2330

H (WAF)
Hex.17
Hex.21
Hex.27

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

Model

HW-2S-F
HW-3S-F
HW-4S-F

Application

Mass (g)

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

150247480Dimensions (mm)L( 66 )
( 74)
( 87 )

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

øD
28
35
45

Approximate time for Valve / O-ring replacement
Test conditions*Test results by us• Testing device: Mold temperature controlling machine

whenValve

180˚C• Fluid: Clean water• Test temperature: 160˚C, 180˚C

Please replace the whole Cupla
in approximately 1000 hours.

• Test condition: Continuous test with the Cupla connected

Hot water

180˚C

The valve cannot be replaced.

Before test (unused)

when160˚C

Please replace the whole Cupla
in approximately 3000 hours.

After 1000 hours of use

Hot water

160˚C

The valve cannot be replaced.

Before test (unused)
whenO-ring

180˚CT
Rc 1/4Rc 3/8Rc 1/2After 3000 hours of use

Please replace the O-rings ofthe Socket in approximately
700 hours.

The packing
starts to swell

Please replace the two O-rings at once.

when160˚C

Please replace the O-rings ofthe Socket in approximately
2000 hours.

Accessory

O-ring (2 pieces/set)
Please apply grease at the replacement.

Please replace the two O-rings at once.

The compression set of the O-ring when used with hot water.

Large

Guide for Replacement (180˚C)

Guide for Replacement (160˚C)

700 hours

2000 hours

Compression
set500

700

1000

1500

2000

2500

3000

3500

hours

Caution*Hot water continuous flow test by a mold temperation controller

Although we have confirmed that there is no leakage, it is our experimental value and not aguaranteed value. Please consider above hours just as a guide. The durability of the sealdiffers depending on the customers usage conditions. (Number of connection /O-ring: For continuous use of 2000 hours at 160˚C / 700 hours at 180˚Cdisconnection, fluid additives, etc.)• Air will be admixed at the time of connection. Please purge the air by the equipment side when using with hot water.
• If additives are mixed in water or the piping is filled with steam, the lifetime of the seal will be decreased.
When using in such an environment, conduct performance evaluation test by actual product.
Valve: For continuous use of 3000 hours at 160˚C / 1000 hours at 180˚C

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

78