The Dual Modular Valves with Vent Line Adapter (DMV-VLA) combines two safety shutoff valves in one compact housing with a factory installed vent line connection between the two safety valves.
DMV-D series contain two fast opening and fast closing safety shutoff valves, and max. flow adjustment to vary the flow.
DMV-DLE series have an extra feature. Valve two is a slow-opening valve.
DMV valves ending /622, /624L and /612 have proof of closure.
DMV valves ending in L are rated as NEMA Type 4.
DMV ZR series valves have two stage operation.
The DMV-VLA is recommended for industrial and commercial heating applications that require two safety shutoff valves with a vent line connection between the safety shutoff valves. The DMV-VLA is suitable for dry natural gas, propane, butane, air and inert gases.
A “dry” gas has a dew point lower than +15°F and its relative humidity is less than 60%.