The Dungs 226-992 (DMV-D 703/602) Dual Modular Valve is an ideal shut-off valve for industrial and commercial heating applications.  This compact unit consists of two normally closed shut-off valves with a 24VDC electrical rating.  It has a total power consumption of 90VA for both valves.  Internal parts are protected with NEMA 12 type of enclosure.  Both valves of 226-992 are fast opening and fast closing which takes less than 1 second.

The DUNGS offer a wide range of Dual Modular Valves designed to have two automatic shut-off valves that you can wire individually or parallel.  

Internal profiles and compact design optimize flow and provide a low pressure drop. Three body styles reduce inventory. Directly mounting the following accessories creates a compact valve train without additional piping: - Pressure regulator - High and low gas pressure switches - Valve proving system - Vent line adapter Application The DMV is recommended for industrial and commercial heating applications that require two safety shutoff valves. The DMV 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 %.

Application
The DMV/6 is recommended for industrial and commercial heating applications that require two safety shutoff valves in series. The DMV 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 on1" and larger safety valves. Two visual indicators, (VI) 266949 or one CPI 400 (CPI) 266968, and one VI meet this requirement. These also must be ordered separately.