The MHY100 series (PN1000) valves are shut-off and control valves specifically designed for use with hydrogen.

The valves are normally closed and are 2/2-way valves that are pneumatically pilot-operated.

Using an optional electronic positioner and a position sensor that detects the valve's actual position, the valve's stroke can be adjusted between 0 and 100% via a standard signal (0–10 V, 0–20 mA, 4–20 mA).