Dungs Dual Modular Safety Shutoff Valves with Two-stage operation DMV-ZRD(LE)/602 Series
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Dungs Dual Modular Safety Shutoff Valves with Two-stage operation DMV-ZRD(LE)/602 Series

The Two-Stage Dual Modular Valve (DMV-ZR) combines two safety shutoff valves in one compact housing, which can be wired independently or in parallel.  Valve 2 incorporates two stages, which can be set at two different firing rates.  Both firing rates are field adjustable and can modulate from high to low during burner operation.  Valve 1 (V1) of the DMV-ZRD and DMV-ZRDLE series is fast opening and fast closing.  Valve 2 (V2) is a two stage valve.  V2 of the DMV-ZRD is fast opening, while V2 of the DMV-ZRDLE is slow-opening for smoother light-off.  Max. flow adjustment on V2 provides variable main flow on both models.  The DMV-ZR is recommended for industrial and commercial heating applications where two automatic shutoff valves and modulating between two firing rates during burner operation are required.  The DMV-ZR Dual Modular Valve two stage is suitable for dry natural gas, propane, butane, air and inert gases.

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