Safety Hydraulic Valves
NC automatic reset slow opening fast closing
The VMH-type valve is a shut-off valve for gaseous media operated by a hydraulic actuator.
It is suitable as main safety device for gas blocking and gas releasing controls, as required when operating gas burners, atmospheric gas boilers, industrial kilns, and generally all gas-consuming appliances.
When the actuator gets energized, it slowly opens the valve over a few seconds. Once fully open, the hydraulic pump turns off to minimize power consumption. As soon as the power supply stops, the valve closes immediately (<1 sec).
It is qualified for continuous service (100% ED).
Technical Data
Material/Connections
AlSi DN65 … DN300
Operating pressure
0 … 200 mbar
0 … 500 mbar
0 … 1300 mbar
0 … 1600 mbar
Gas type
Air and non-aggressive gases (Family 1-2-3, EN 437)
Special version for Biogas/COG
Special version for Hydrogen (H2)
Approvals
EC-type tested and certified according to EN 161
Australian Gas Mark
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