Manual needle valves

Needle valves afford the utmost safety and reliability, even under adverse operating conditions in flow control. Valves can be used in either direction and will effectively seal both gases and liquids. The heart of the valve is the specially shaped seat and the two-piece non-rotating stem. The longevity and dependability of the valves are increased by the fact that the stem will not seize against the seat. Pressure-containing parts are made of high-grade corrosion-resistant stainless steel. The reliability is documented thanks to traceability, each single valve body contains information that allows to track back to origin in case of problems. Medium and high pressure valves are delivered complete with collars and glands.

Actuated needle valves

High pressure circuits can be automated with valves with pneumatic actuators. Valve bodies and the sealing system are identical to those of manual valves and afford same advantages.

Actuated needle valves are available in NC, NO and DA versions.

Needle valves for hydrogen

PHP is using SUH660 material for them stem. SUH660 has a 25% Ni content while our standard 316L is slightly above 10%. The higher Ni content helps eliminate H2 embrittlement which you probably already know.
The rest of the needle valve construction and materials are standard with the exception of the air actuator (Atex version).

All our fittings are made from standard 316L material and available with ATEX certification.

Our range now includes also actuated needle valves for hydrogen use by Nova Swiss.