Vacuum piping partsProduct catalogCAD drawing


IRIE KOKEN is standardized in the VP series for vacuum piping (10 sizes) and the HP series for high-pressure piping (8 sizes) as easy-to-handle piping joints for NW-KF flanges that conform to ISO standards.


 Parts for vacuum piping (VP series)

- Requiring no bolts or nuts, they can be easily attached/detached by simply turning the screw nut after fitting the tapered portion inside the coupling to the tapered portion of the flange.

- The allowable heating temperature is up to 150°C.

- The He leak rate is 1×10-9Pa·m3/s or less.

 Parts for high-pressure piping (HP series)

- With respect to high-pressure piping specifications, the working pressure is 0.49MPa or less.

List of products

Example of using piping

Example of using piping

Products guidance

Metal bellows Metal bellows
Welded bellows
Formed bellows
Flexible tubes
Vacuum valves Vacuum valves
Rectangular type gate valves
Round type gate valves
Large-size rectangular type
gate valves
L-shape valves
(Angle valves)
Vacuum piping Vacuum piping parts
Flanged pipes
Pipe parts
Flexible tubes
L-shape valves
(Angle valves)
Vacuum chamber Vacuum chamber
Feedthroughs Feedthroughs
Linear feedthroughs
Rotary feedthroughs
Magnetic feedthroughs
NEGVacuum Pump
The ultra-high vacuum pump (NEG)
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