6-7-p0213-0230-kk-kkh_en.pdf - 第15页

KK KKH KKA KK130 Series KK   KKH   KKA  KK130  1. For a pl ug and socket connection , select a plu g and socket with the same bo dy siz e. If their body sizes are different, they cannot be connected. This will caus…

Body

size

Weight

Effective

area

Min.

bore

size

1/8

1/4

R 1/8

R 1/4

R 3/8

R 1/8

R 1/4

R 3/8

R 1/2

20.2

28.0

When

connected

36.0

34.0

34.5

50.1

48.7

47.2

45.4

6.0

9.0

6.0

9.0

11.0

13.0

20.4

21.1

22.9

38.9

40.4

42.7

20.3

19.4

27.7

48.7

45.3

52.1

62.4

33.5

31.5

32.2

46.4

45.0

43.5

41.7

39.1

39.5

40.1

53.2

54.2

52.6

52.5

36.6

37.0

37.6

49.5

50.5

48.9

48.8

Model

KKH3S-01MS

-02MS

-03MS

KKH4S-01MS

-02MS

-03MS

-04MS

∗

When

connected

(mm)

Width

across flats

Connection

port size

øD

Male thread type

Body

size

Weight

Effective

area

Min.

bore

size

1/8

1/4

Rc 1/8

Rc 1/4

Rc 3/8

Rc 1/4

Rc 3/8

36.0

40.1

41.9

50.4

51.1

38.5

42.4

44.3

54.1

54.8

20.2

28.0

When

connected

8.2

10.9

14.4

20.6

21.1

39.6

42.7

23.8

33.1

37.1

58.1

47.4

Model

KKH3S-01F

-02F

-03F

KKH4S-02F

-03F

(mm)

Width

across flats

Connection

port size

øD

Female thread type

Body

size

Weight

Effective

area

Min.

bore

size

1/8

1/4

5/8

6/9

6.5/10

5/8

6/9

6.5/10

8/12

8.5/12.5

20.2

28.0

When

connected

4.5

5.4

5.9

4.5

5.4

5.9

7.4

7.8

42.6

44.4

54.1

56.8

55.4

45.1

46.9

57.8

60.5

59.1

13.7

16.5

13.7

16.5

17.4

12.2

18.3

19.2

12.2

20.4

24.1

35.1

36.6

32.3

48.9

46.6

57.0

70.5

68.0

69.7

72.3

Model

KKH3S-50N

-60N

-65N

KKH4S-50N

-60N

-65N

-80N

-85N

(mm)

Width

across flats

Width

across flats

øD

Applicable

hose

I.D./O.D.

Nut fitting type (for fiber reinforced urethane hose)

∗ Reference dimension for R threads after installation.

Dimensions/Socket (S)

KKH series are only available as sockets. KK series should be used as plugs. For dimensions, please refer to page 220.

øD

H1 H2

øD

Applicable hose

KKH Series

226

KKH

KKA

KK130

Series



KKH



KKA



KK130



1. For a plug and socket connection, select a plug and

socket with the same body size. If their body sizes are

different, they cannot be connected. This will cause

leakage, damage, and disconnection of the plug.

Inserting a plug other than the specialized plug into the

socket may result in equipment damage.

2. Do not use couplers with flammable, explosive, or toxic

substances, such as gas, gas fuel, and refrigerant. They

may leak from inside the tubing to the outside.

3. Do not use the S coupler with steam. Corrosion of the

metal material and deterioration of the sealing material

may result from long-term use with steam.

1. Do not use couplers where rotation normally occurs. The

couplers may be damaged.

2. Avoid applications in which vibration or shock is directly

applied to the fittings.

3. Fittings with sleeve lock mechanism must be locked

during operation in order to prevent sudden disconnection.

4. Install a stop valve at the supply pressure side of the

socket. Emergency shutdown may not be possible

without it.

1. Mount so that couplers and tubing are not subjected to

twisting, pulling or moment loads. This can cause

damage to couplers and flattening, bursting or disconnec-

tion of tubing, etc.

S Couplers

Specific Product Precautions 1

Be sure to read this before handling the products.

Refer to back page 50 for Safety Instructions and pages 13 to 17 for Fittings and

Tubing Precautions.

Selection

Mounting

Warning

Caution

1. Cannot be used as a stop valve that requires zero leakage.

A certain amount of leakage is allowed during operation.

S coupler connection possibilities are shown in the table below.

∗ Before using a KK130 series S coupler with another

manufacturer’s product, be sure to confirm compatibility

with the manufacturer, etc.

3. Do not couple or uncouple the S coupler during pressur-

ization or while residual pressure remains. The coupler

may shoot out under the influence of the pressure.

4. Never apply pressure to an S coupler without check valve

when it is uncoupled. The piping may move violently and

cause danger.

5. An S coupler without check valve experiences leakage of

fluid inside piping when it is uncoupled. Pay special

attention in using fluid that can cause danger such as

fluid of a high temperature and pressure. Additional use

of a stop valve is recommended.

6. The S coupler becomes extremely hot when the product

is operated at a high temperature. Be sure to refrain from

touching it as doing so may result in burns. Insert or

remove the plug and socket only after the product has

returned to a normal temperature.

Warning

Handling

1. When connecting the plug, hold the plug securely.

The plug may be uncoupled due to reaction at the time of

connection.

When connecting KK, KKH, and KKA series plugs, push the plug

in until you hear it click into the socket. In addition, be sure to

refrain from touching the sleeve until you are sure that the plug

has been pushed all the way in. Failure to do so may result in a

malfunction. When connecting KK130 series plugs, after pulling

the sleeve straight back, push the plug in until you are sure that

it has been pushed all the way in. For all S couplers, after

inserting the plug, pull on it gently to make sure that it doesn’t

come out from the socket. If the plug is not properly inserted into

the socket, the plug may fly out of the product due to pressure.

3. When connecting the plug, insert it straight into the

socket. If not inserted straight, the socket and/or plug

may be damaged or cause a malfunction.

4. When releasing the plug, hold it securely. The connection

pipe may move due to reacting stress and/or residual

pressure on the plug side.

5. Be sure to move the sleeve straight in relation to the

socket. If it is rotated at all, a malfunction may result.

6. Do not press the inside of the socket with an incompatible

plug and/or with a stick. The internal fluid may be ejected

and cause a dangerous situation. Also, the ejecting

internal fluid may cause the sealings to come apart

resulting in the product not functioning.

If foreign matter adheres to the plug O-ring, be sure to wipe it

off. If air blow is performed with the air gun air outlet in close

proximity to the plug O-ring, the plug O-ring may come off.

For products with a sleeve lock mechanism, do not apply

pressure when rotating the sleeve. If the KK130 series is

pressurized during rotation, the detent of the locked and

released positions may become unclear due to the pressure.

In addition, operate the product in accordance with the arrows

on the sleeve surface. Failure to do so may result in problems

with the attaching and detaching of the mechanism.

If the plug and socket cannot be separated due to a

malfunction of the sleeve, do not try to forcibly pull out the

plug. Instead, turn the sleeve clockwise (viewed from the

plug insertion side) 3 to 5 times, and then check to see if the

sleeve moves properly. If the sleeve still doesn’t move

properly, try turning it counter-clockwise in the same

manner, and check it again.

If the aforementioned method fails to work, loosen the plug

and socket connection thread and remove it from the piping.

10.

Water is an incompressible fluid. Design the piping while taking the

characteristics of the fluid into consideration.

If the plug or socket piping of the type with a check valve is filled

with water and the valve above said piping is closed, removing the

plug or socket will result in the piping between the check valve and

the closed valve filling with water. (Refer to the circuit example.)

In order to reinsert the plug or socket while in the aforementioned

state, the water would need to be compressed to allow room for

the plug or socket. However, as this is not possible, the plug and

socket cannot be reinserted while in this state.

Circuit example

Connected plug and socket

Check valve

on both sides:

Check valve

on single side:

Water supply

Valve Valve Drain

227

KQ2

KQB2

H/DL

L/LL

KK130

KDM

KQG2

KFG2

KKA

MQR

IDK

200

150

100

Charging pressure MPa

0.5 1.5

Insertion force N

S Couplers

Specific Product Precautions 2

Be sure to read this before handling the products.

Refer to back page 50 for Safety Instructions and pages 13 to 17 for Fittings and

Tubing Precautions.

Insertion Force of KKA series

500

400

300

200

100

0 0.1 0.2 0.3 0.4 0.5

Charging pressure MPa

Insertion force N

KKA9 KKA8

KKA7

KKA6 KKA4

KKA3

Plug Insertion Force in Pressurized Condition

Insertion Force of KK series

350

300

250

200

150

100

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1

Charging pressure MPa

Insertion force N

KK6 series

KK4 series

KK3 series

KK2 series

Insertion Force of KK130 series

Handling of Barb Fittings and Nut Fittings

Caution

1. When using a nut fitting, insert the hose all the way to the

end and securely tighten it with the nut. When the inser-

tion of the hose or the tightening of the nut are not

sufficient, the hose may slip out.

2. Disconnection may occur depending on the material or

the O.D. accuracy of the hose; therefore be sure to

confirm the applicability of the hose.

3. Prepare a hose band separately when using a barb fitting.

If the hose band is not used, the hose may come off.

1. Tightening of the fittings with a sealant

Tighten fittings with sealant using the proper tightening

torques in the table below. As a rule, they should be

tightened 2 to 3 turns with a tool after first tightening by

hand.

Handling of Fittings

Caution

Connection thread size

NPT, R 3/4

NPT, R 1

NPT, R 1 1/4

NPT, R 1 1/2

Proper tightening torque N·m

28 to 30

36 to 38

40 to 42

48 to 50

228