The DUNGS Dual Modular Valve (DMV-ZRD(LE)/612) with Proof of Closure combines all the features of the DUNGS Dual Modular Valve DMV-ZRD(LE)/6 plus, valve 1 incorporates overtravel and a proof of closure switch which is factory mounted and set.

Application
The DUNGS DMV-ZRD(LE)/612 is recommended for industrial and commercial heating applications where two safety shutoff valves in series that modulate between two firing rates and applications that require overtravel and a proof of closure switch. The DMV-ZRD(LE)/612 is suitable for natural gas, propane, butane, air and other inert gases.

Optional Approvals
When ordered and installed with Burkert connector plug (part number 253731), the UL Recognized DMV valve may replace a UL Listed valve. Such a substitution is typically required for equipment UL Listed to UL 295/UL 795.

Conduit Adapter (240671), DIN connector (210319), and flanges must be ordered and priced separately. Code requirements vary. FM requires visual indication on 1" and larger safety valves. The visual indicator, (VI) 266949 meets this requirement. The visual indicator must be ordered separately for valve 2.