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NKM series quick connector

NKM series quick connector

Product Introduction:

NKM series quick connectors enable quick sealing connection of test pieces such as straight pipes and drill holes. The NKM series quick connector absorbs the inner wall of the test tube through its front end seal to achieve the sealing effect. Therefore, it is necessary to ensure that the quick connector seal and the sealed surface of the workpiece to be tested are dry during use. If the sealing contact surfaces of the two are lubricated with water, etc. In terms of ingredients, the pressure can only be used below 1 bar.


Related Products:
technical Parameter:

Product advantages:

It can seal straight pipes or drilled holes with large tolerances;

Sealing ring adaptation;

There is no damage to the test fittings.


Application range:

Achieve rapid sealing tests on straight pipe, pressure and vacuum of drilled parts.


Test steps:

1. Insert the quick connector into the test piece;

2. Rotate the quick connector handle by 90° to achieve the connection seal, and then apply the test pressure;

3. At the end of the test, the quick connector is rotated back to 90° to remove.


Working pressure:3bar (maximum)

Leakage rate:10-4 mbar × l / s (10-5Pa × m3 / s)

*This is the standard minimum leak rate, we can provide lower leakage rate devices on demand, depending on the detailed specifications (test method, test temperature and test pressure) provided by the customer and the quality of the samples provided by the customer (ie tested) Surface finish, roughness and dimensional tolerances).


Operating temperature: +5°C~+80°C

Sealing medium:no fuel,Dry air or other non-corrosive gases

Drive mode:Handle drive

Body material:The shape of the product body is aluminum alloy (surface treatment: anodizing)

Sealing material:Nitrile rubber (NBR), other materials can be selected according to demand

Standard sizes:(mm)

Performance Characteristics:
Shape size Seal range A Lmin* Fast connector part number Plugging part number

Dielectric mouth B

ΦD L1 L2 L3 L4


I Φ9.5-Φ10.4 16 NKM-01 NKM-01P G1/8″ 22 175 92.9 102 60
I Φ10.5-Φ11.4 16 NKM-02 NKM-02P G1/8″ 22 175 92.9 102 60
I Φ11.5-Φ12.4 16 NKM-03 NKM-03P G1/8″ 22 175 92.9 102 60
I Φ12.5-Φ13.4 16 NKM-04 NKM-04P G1/8″ 22 175 92.9 102 60
II Φ13.5-Φ14.4 24 NKM-05 NKM-05P G1/8″ 22 182 100.9 101 68
II Φ14.5-Φ15.4 24 NKM-06 NKM-06P G1/8″ 22 182 100.9 101 68
II Φ15.5-Φ16.4 24 NKM-07 NKM-07P G1/8″ 22 182 100.9 101 68
II Φ16.5-Φ17.4 24 NKM-08 NKM-08P G1/8″ 22 182 100.9 101 68
II Φ17.5-Φ18.4 24 NKM-09 NKM-09P G1/8″ 22 182 100.9 101 68
II Φ18.5-Φ19.4 24 NKM-10 NKM-10P G1/8″ 22 182 100.9 101 68
II Φ19.5-Φ20.4 24 NKM-11 NKM-11P G1/8″ 22 182 100.9 101 68
II Φ20.5-Φ21.4 24 NKM-12 NKM-12P G1/8″ 22 182 100.9 101 68
II Φ21.5-Φ22.4 24 NKM-13 NKM-13P G1/8″ 22 182 100.9 101 68
II Φ22.5-Φ23.4 24 NKM-14 NKM-14P G1/8″ 22 182 100.9 101 68
II Φ23.5-Φ24.4 24 NKM-15 NKM-15P G1/8″ 22 182 100.9 101 68
LminThe shortest length needed to insert the fast connector into the sealed pipe. Special size can be customized according to customer needs.



Shape size Seal range A Lmin* Fast connector part number Plugging part number Entrance B ΦD L1 L2 L3 L4


III Φ24.5-Φ25.4 32 NKM-16 NKM-16P G1/8″ 36 287 147 153 66
III Φ25.5-Φ26.4 32 NKM-17 NKM-17P G1/8″ 36 287 147 153 66
III Φ26.5-Φ27.4 32 NKM-18 NKM-18P G1/8″ 36 287 147 153 66
III Φ27.5-Φ28.4 32 NKM-19 NKM-19P G1/8″ 36 287 147 153 66
III Φ28.5-Φ29.4 32 NKM-20 NKM-20P G1/8″ 36 287 147 153 66
III Φ29.5-Φ30.4 32 NKM-21 NKM-21P G1/8″ 36 287 147 153 66
III Φ30.5-Φ31.4 32 NKM-22 NKM-22P G1/8″ 36 287 147 153 66
III Φ31.5-Φ32.4 32 NKM-23 NKM-23P G1/8″ 36 287 147 153 66
III Φ32.5-Φ33.4 32 NKM-24 NKM-24P G1/8″ 36 287 147 153 66
III Φ33.5-Φ34.4 32 NKM-25 NKM-25P G1/8″ 36 287 147 153 66
Lmin:The shortest length needed to insert the fast connector into the sealed pipe. Special sizes can be customized by customer needs

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