Bellows‑Sealed Valves

The bellows structure completely separates the process medium from the atmosphere, eliminating stem leakage risk. The metering version delivers highly repeatable micro flow adjustment, ideal for trace gas control. Made of 316L stainless steel with EP or BA finish, they suit toxic, corrosive and ultra‑pure gases.
These valves are widely used in semiconductor, specialty gas and analytical instrumentation systems. Every valve undergoes helium leak testing. Custom connections and specification options are available to meet diverse process requirements worldwide.