The Dungs 224-983 (VPS 504) Series S05 is a valve-proving system for DMV Series automatic valves that operates at 24 VDC. This device has an aluminum housing and NBR-based rubber that can handle a maximum pressure of 7 psi (500 mbar). CSA Listed.
The VPS ensures that the safety shutoff valves in a gas train are closed before a system start-up or after shutdown when wired and interlocked to a flame safeguard control. If detected open, this will interrupt the start-up sequence to a burner to prevent ignition.
The Series S05 is used for industrial and commercial heating applications. Suitable for air, propane, dry natural gas, and inert gases, not for any gas mixture with 60% or more butane. It is mounted directly to DMV via mounting screws upright vertical to horizontal.
Ambient operating temperature +5 ° | 5 to 140°F (-15 to 60°C) |
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Operating Time | 100% Duty Cycle, Maximum 20 test cycles/h |
Electrical Connection | Screw Terminals with 1/2“ NPT Conduit Connection |
Enclosure Rating | NEMA Type 12 |
Maximum Operating Pressure | 7 psi (500 mbar) |
Maximum Body Pressure | 15 psi (1000 mbar) |
Electrical Rating | 24 VDC |
Switch Output Rating | Run TB: 4A @ 24 VDC, Alarm TS: 1A @ 24 VDC |
Test Volume | Maximum 0.14 ft3, Minimum. 0.004 ft3 |
Release Signal Timing | Maximum 26s, Minimum 10s |
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