For Low Pressure

Mold Cupla
General purpose and mold coolant port coupling
Working pressure

Valve structure

Applicable fluids

One-way shut-off

Straight throughWater

Brass1/8", 1/4", 3/8"ThreadSize

Hose: 1/4", 3/8" / Braided hose: ø9 x ø15

Hose barb

Pressure unitMPa

kgf/cm2bar

PSI

Working pressure

1.0

1010145

Workingtemperature range

Remarks

Seal material
Working temperature range

Seal material

MarkNitrile rubber

NBR (SG)

Fluoro rubber

FKM (X-100) -20˚C to +180˚C Available on request-20˚C to +80˚C Standard materialMax working pressure and working temperature range of Cupla for braided hoses depend
upon the specifications of braided hoses to be used.

1.0
1.0 MPa{10 kgf/cm2}

Specifications
Body material

Heated oil

Max. Tightening TorqueNm {kgf • cm}

Size (Thread)

1/8"

1/4"

3/8"

Torque5 {51}

9 {92}

11 {112}

Designed for quick replacementfor die and mold !
Rust resistant models having
many variations.

Tighten the nut until it is flush against the hose barb base after pushing a braided hose to the end.

• Space saving design for molds with closely spaced coolant ports.
• Long sleeve socket facilitates connection/disconnection with plug embedded
in mold.
• Enables quick mold cooling water line connection/disconnection.
• Various sizes and end configurations to suit a wide variety of mold applications.
• Can be connected with Super Cuplas, excluding K3 and K4 types.
• Push-to-connect design. (Built-in automatic shut-off valve in the socket)
Also available is Cupla without valve (Please specify in ordering).
• Cupla for braided hose connection requires no hose clamp. (Model K-90SN)

Sockets and plugs can be connected regardless of end configurations and sizes. K01, K-02, and K-03 series
are not interchangeable with high flow type K3 and K4 series. Can be connected to Super Cupla.

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

Interchangeability(mm2)Min. Cross-Sectional Area
Socket

K-02SH

K-03SH K-02SM K-03SM

K-02SF K-02SHL K-03SHL K-90SN

K-02PH

15.5

15.5

15.5

15.5

15.5

15.5

15.5

K-03PH

192828

28

28

15.5

28

28

K-01PM

192323

23

23

15.5

232323Plug

K-01PM-HH

192323232315.5

23K-02PM

1928282828

15.52828

K-02PM-HH

19232323

23

15.5

23

23

K-03PM

19282828

28

15.5

28

28

K-01PF

1928

28

28

28

15.5

28

28

K-02PF

1928

28

28

28

15.5

28

28

K-03PF

1928

28

28

28

15.5

28

28

K-01PML

191919

19

19

15.5

19

19

K-02PML

1928

28

28

28

15.5

28

28

K-03PML

1928

28

28

28

15.52828

Suitability for Vacuum

For Braided Hose

Not suitable for vacuum application in either connected or disconnected condition.
(mm)

Plug Embedment Dimensions

Please use braided hoses available in the market.

C*LRemarks

20 or more 0 to 3D*28* Socket interference prevents
connection/disconnection
when C exceeds 3 mm.

ModelD

K-01PM

K-01PM-HH 20 or more 0 to 3

2420 or more 0 to 3

29

K-02PM

Benefits withouta hose clamp

CL

K-02PM-HH 20 or more 0 to 3

24

20 or more 0 to 330

K-03PM* Size D should be bigger thanthe outer diameter of thesocket wrench to be used.
(See JISB4636-1, JISB4636-2)

Flow Rate – Pressure Loss Characteristics[Test conditions]• Fluid : Water• Temperature : Room temperature

0.5{5}

Pressure loss in MPa {kgf/cm2}

0.3{3}

Mold cooling water line

K-02SH x K-02PM
K-03SH x K-03PM

0.1{1}
0.05
{0.5}
0.03
{0.3}
0.01
{0.1}
13

Flow rate in L/min

63

15.5

51030

50

100300Mold Cupla
Models and Dimensions

WAF : WAF stands for width across flats.

PH type (Hose barb)

SocketSH type (Hose barb)

AN

Bd

Bp

TH

BT

DdPlugCL

Dimensions (mm)ModelMass(g)K-02PH
K-03PH

1/4"
3/8"

1719

Plug

PM type (Male thread)

L4242A
2121

C1515

øH
1215

øT
812øBp
4.57

øBd
66L

Dimensions (mm)Application(Hose)

Mass(g)K-02SH
K-02TSH *1
K-03SH
K-03TSH *1

1/4
1/4
3/8
3/8

52
52
60
60

SocketSM type (Male thread)

Model
Application(Hose)

CA

L( 67 )( 67 )( 59 )( 59 )

øD( 21)
( 21)
( 21)
( 21)

N
16.8
16.8
16.8
16.8

ød
18.5
18.5
18.5
18.5

A
29292929

øB
5577T

H

B

B

DdT

øT
881212C
2929
2121

N

H

A

CLLModelApplication

K-01PM
K-02PM
K-03PM

Rc 1/8Rc 1/4Rc 3/8

1420
35

Plug

PF type (Female thread)

L
3134
35

H(WAF)
Hex.12
Hex.14
Hex.17

C1515
15

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

øB5.5
66

Dimensions (mm)Application

Mass(g)K-02SM
K-02TSM *1
K-03SM
K-03TSM *1

Rc 1/4
Rc 1/4Rc 3/8Rc 3/87070
82
82

SocketSF type (Female thread)

Model

Dimensions (mm)

Mass(g)

L
( 51)
( 51)
( 52)
( 52)

øD( 21)
( 21)
( 21)
( 21)

N
16.8
16.8
16.8
16.8ød18.5
18.5
18.5
18.5

A292929
29

H(WAF) T
Hex.17 R 1/4
Hex.17 R 1/4
Hex.19 R 3/8
Hex.19 R 3/8

øB6666T

B

DdT

N

C
H

Model

L

L

Application

HCA

L
28
30.5
32

162235H(WAF)

C
15
15
15

Hex.14
Hex.17
Hex.21

K-01PF
K-02PF
K-03PF

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

Plug

PML type (Male thread)

Application

Mass(g)K-02SF
K-02TSF *1

R 1/4
R 1/4

57
57

Socket

SHL type (Hose barb)

Model

Dimensions (mm)

Mass(g)TRc 1/8
Rc 1/4Rc 3/8øB
666Dimensions (mm)LøD
(46.5) (21)(46.5) (21)ød18.5
18.5

N
16.8
16.8

A2929CT H(WAF)
14.5 Rc 1/4 Hex.17
14.5 Rc 1/4 Hex.17

T

BC

B
H

T

H

DdC

N

L

Model
Dimensions (mm)Application

Mass(g)K-01PML
K-02PML
K-03PMLRc 1/8Rc 1/4Rc 3/8435371Plug

PM-HH type (Male thread)

Model

T

H
30.5
33.5
33.5

C
15
1515

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

øB566Mass(g)1/43/83/8798787

L

Dimensions (mm)NLøD ød( 52) ( 21) 18.5 16.8( 52) ( 21) 18.5 16.8( 52) ( 21) 18.5 16.8

A
292929C21
2121H
øT
øB
8 (42.5) 4.5
12 (42.5) 712 (42.5) 7*1: Also available without socket valve (Made-to-order item), identified by product code TS (e.g. K-03SH
without valve is K-03TSH). Also available are Cuplas with sleeve stopper (Made-to-order item).

SocketSN type (For braided hose connection)
H1

Plug with internal hexagon socket for Allen wrench

H2BB

DdHL
33.5
33.5
33.5

K-02SHL
K-03SHL
K-03TSHL *1

Application(Hose)

ACNL
Model

K-01PM-HH
K-02PM-HH

Application

Mass(g)Rc 1/8Rc 1/4915A• The photo shows model K-01PM-HH.

L

Dimensions (mm)OutsideDiameterø11(ø13.4)

L
27
29

H
55

C1515

T
R 1/8
R 1/4

øB66

Model

Application (Hose)(mm)

Hose wallthickness

Mass(g)K-90SNø9 x ø153±0.3

122(mm)Dimensions (mm)LøDød
N( 63) ( 21) 18.5 16.8

A H1(WAF) H2(WAF) øB29 Hex.23 Hex.24 8.5

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

64For Low Pressure

Mold Cupla
High Flow Type

Valve structure

Size3/8", 1/2" hose

Hose barb

Pressure unitMPa

kgf/cm2bar

PSI

Working pressure

1.0

1010145

Working
temperature range

Remarks

Applicable fluids

Seal material

MarkNitrile rubber

NBR (SG)

Fluoro rubber

FKM (X-100) -20˚C to +180˚C Available on request-20˚C to +80˚C Standard materialMax. Tightening Torque

1.0
1.0 MPa{10 kgf/cm2}

Brass1/4", 3/8", 1/2"Thread

Seal material
Working temperature range

High flow type mold coolant port coupling
Working pressure

Specifications
Body material

One-way shut-off

Straight through

Water

Heated oilFlow rate has doubled to increase
productivity.
• High flow type K3 and K4 series are added to mold Cupla series for moldcoolant and heated oil port coupling.
• Almost double flow rate compared with our standard K01, K02 and K03 series,
increasing productivity.
• Space saving design for molds with closely spaced coolant ports.
• Long sleeve socket facilitates connection/disconnection with plug embeddedin mold.
• Enables quick mold coolant hose connection / disconnection.

Nm {kgf • cm}

Size (Thread)

1/4"

3/8"

1/2"

Torque9 {92}

11 {112}20 {204}

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

Interchangeability
In K3 series sockets and plugs can be connected regardless of end configurations and sizes.
In K4 series sockets and plugs can be connected regardless of end configurations and sizes.
K3 series and K4 series are not interchangeable with each other.
(mm2)

Min. Cross-Sectional Area
PlugSocketK3-03SH

K3-04SH

K3-03SM

K3-03SF

K4-04SH

K3-03PH

38383838-

K3-02PM

38

62.5

62.5

62.5

-

K3-03PM

3862.5

62.5

62.5

-

K3-03PF

3862.5

62.5

62.5

-

K4-04PM----

78.5

Suitability for Vacuum
Not suitable for vacuum application in either connected or disconnected condition.
(mm)

Plug Embedment Dimensions
D*LRemarks

K3-02PM 24 or more 0 to 331* Socket interference prevents
connection/disconnection
when C exceeds 3 mm.

K3-03PM 24 or more 0 to 331

K4-04PM 32 or more 0 to 339

C*DModelC

Results of reduced cooling timein the field

LA customer replaced conventional K-0 series Moldcuplas with the K3 series and shortened the coolingtime from 30 seconds to 21 seconds meaning an 18%
reduction per shot and increased productivity by20%. Temperature checks at 8 positions on the moldshowed that surface temperatures on average had
fallen by 3˚C, providing evidence of the high coolingefficiency.

Flow Rate – Pressure Loss Characteristics (Comparison with Mold Cupla)[Test conditions]• Fluid : Water• Temperature : Room temperature

K03SH x K03PM

0.3{3}

Increased by
1.7 to 1.8 times UP

Pressure loss in MPa {kgf/cm2}

Flow comparison

K4-04SH x K4-04PM
0.1{1}
0.05
{0.5}
0.03
{0.3}
0.01{0.1}
13

Flow rate in L/min

65

K3-03SH x K3-03PM

K02SH x K02PM

0.5{5}

Coolant water flow rate was checked with a flow meter, which confirmed increase by 1.7 to1.8 times, when Mold Cupla K3 series are used.

Conventional K-0 series
Mold Cuplas were used.

* Size D should be bigger thanthe outer diameter of thesocket wrench to be used.
(See JISB4636-1, JISB4636-2)

K3 series are used.

5103050100300

Mold Cupla (High Flow Type) / Flow Meter
Models and Dimensions

SH type (Hose barb / High flow type)

SocketB

TDdPlug

WAF : WAF stands for width across flats.

PH type (Hose barb / High flow type)

Bp

AC

A

Bd

T

H

N
L

CL
Dimensions (mm)ModelApplication(Hose)

Mass(g)K3-03PH

3/8"

19

Plug

PM type (Male thread / High flow type)

L
42.5

A
21C
17.5

øH
14

øT
12øBp
7øBd
9.5

Dimensions (mm)ModelApplication(Hose)

Mass(g)K3-03SH
K3-04SH
K4-04SH

3/8"
1/2"
1/2"

100102
226

SocketSM type (Male thread / High flow type)ødNA
22.5 19 25.5
22.5 19 25.5
30 26.5 34

øD
( 24)
( 24)
( 32)

L
( 65)
( 67 )
( 82)

C
21
23
23

øT
1215
15

T

øB
7
10
10

H

B

Dd

B

T

C

N

L

H

A
Dimensions (mm)

L

Model

Application

Mass(g)K3-02PMK3-03PM
K4-04PMRc 1/4Rc 3/8Rc 1/2

162550Plug

PF type (Female thread / High flow type)

L36
36
46

C
17.5
17.5
21.5

H(WAF)Hex.14
Hex.17
Hex.22

øT
R 1/4
R 3/8
R 1/2

øB
99.5
13

Dimensions (mm)ModelApplication

Mass(g)K3-03SM

Rc 3/890

SocketSF type (Female thread / High flow type)L( 56 )

øD( 24)

ød
22.5

N19

A H(WAF) T
25.5 Hex.21 R 3/8

øB
12T

B

DdT

H

N

C

HA

L

L

ModelApplication

Mass(g)K3-03PFR 3/8

30

Dimensions (mm)L33

H(WAF)
Hex.21

C17.5

T
Rc 3/8øB
9.5

ModelApplication

Mass(g)K3-03SF

R 3/887

Dimensions (mm)L(49 )

øD( 24)

ød22.5

N19A
25.5

TH(WAF)
Rc 3/8 Hex.21

Notes: Also available without socket valve (Made-to-order item), identified by product code TS (e.g. K3-03SH without valve is K3-03TSH). Also available are Cuplas with sleeve stopper (Made-to-order item).

Specifications

For Low Pressure

Flow Meter
Flow meter with special valve for mold cooling line

Applicable fluids

0.50.5 MPa{5 kgf/cm2}

Graduated tube: Polycarbonate

Both ends Rc 3/8 female thread

Size (Thread)
Pressure unit

MPakgf/cm2barPSI

Working pressure

0.55572.518 L/min (5 to 18 L/min adjustable)

Max. flow rate

Water

Seal material
Working temperature range

For stable and accurate coolant flow rate.

Workingtemperature range

Seal material

MarkNitrile rubber

NBR (SG)

Remarks-20˚C to +60˚C Standard material• Use within the temperature range of +10˚C to +60˚C due to plastic float material.

• Graduated scale enables easy visual check of coolant flow rate regardless of operator.
• Built-in flow rate adjustment valve enables desired setting of mold conditions for each machine.
• Easy resumption of previously set molding conditions to cut lead times.
• T2 side is equipped with rotary function. Even after fixing the body on T1 side to the piping,additional screw tightening on T2 side is possible.

Pressure - Flow Characteristics

Max. Tightening TorqueNm {kgf • cm}

Torque11 {112}Models and Dimensions / Flow Direction

WAF : WAF stands for width across flats.

T1 (Female thread)

H2[Test conditions] •Fluid : Water •Temperature : Room temperature• Valve open level : 100%0.1{1}

T2(Female thread)DPressure loss in MPa {kgf/cm2}

Application

Body: Brass

Body material
Working pressure

H10.01{0.1}

L

Fluid must flow in the direction of the arrows.
0.001{0.01}
1Flow rate in L/min

10100

Model

Mass (g)FM-03-B

190

Dimensions (mm)L
( 89 )D( 33 )

H1(WAF)
Hex.23

H2(WAF)
Hex.26T1
Rc 3/8T2
Rc 3/8Before use, please be sure to read “Safety Guide” described at the end of this book and “Instruction Sheet” that comes with the products.

66