The DUNGS VPS 504 S04 is a valve proving system for DMV series safety valves. It checks that both safety shutoff valves in a DMV series gas train are fully closed before either a system startup and/or after system shutdown when wired and interlocked to a suitable flame safeguard control. The VPS will halt the startup sequence to a piece of gas burning equipment if it detects an open safety shutoff valve, thus preventing ignition under dangerous conditions.
Application
The VPS 504 S04 is recommended for industrial and commercial heating applications. where CE approval is required. The VPS is the means for proof of closure and normally open vent line alternative. The VPS is required for CE compliance on system with capacities of 4.1 Mbtu and up. The VPS is suitable for natural gas, propane, air and other inert gases. Not suitable for butane gas.
| Maximum Operating Pressure | 7 PSI (500 mbar) |
|---|---|
| Electrical Ratings | 110 - Vac/50 or 60 Hz |
| Enclosure Rating | IP 54 |
| Electrical Connection | Screw terminals with SO cord connection |
| Ambient Temperature Rating | +5°F to +140 °F (-15 °C to +60 °C) |
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