WEH® H2-needle valves with pneumatic actuators are used wherever—for example, for safety reasons—manual operation of the valves is not desired. They can also be installed in automated systems. The pneumatic needle valves for medium pressure are characterized by their exceptional service life and ease of maintenance: • The valve needles and sealing seats, which are subject to particular wear, are available as spare parts and can be replaced easily in just a few steps. • The anodized aluminum housing is corrosion and wear resistant. • The durable pneumatic actuator has been tested for 100,000 cycles with 6.9 bar compressed air. WEH® H2-needle valves with pneumatic actuation are equipped with a V-tip as standard for fast opening and closing. For regulation, however, we recommend the use of manually operated needle valves with regulating tips. Applications WEH® H2-needle valves are specifically designed and tested for hydrogen applications. The bodies are made of special 316/316L alloys with controlled nickel, chromium, and molybdenum content. This significantly reduces the risk of hydrogen embrittlement, thereby ensuring a longer service life. Typical applications include hydrogen storage systems, compressor systems, and dispensers, as well as test systems for hydrogen components. Separate versions are available for hydraulic applications or those involving other gases. Please feel free to inquire!
