Description
The Dungs VPS 504 is a valve proving system for DMV series automatic valves. It verifies that both safety shutoff valves in a gas train are fully closed before a system start-up or after system shutdown when wired and interlocked to a suitable flame safeguard control. The VPS will halt the start-up sequence to a burner if it detects an open automatic shutoff valve, thus preventing ignition under potentially dangerous conditions.
Application:
The VPS 504 is recommended for industrial and commercial heating applications. Various model types are: 504 06: 120 Vac, 504 06: 24 Vdc, 504 04: 110 Vac and 504 04: 230 Vac.
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Approvals:
UR, CSA and FM – for S06 VPS 120 Volt AC Model
CE and CSA – for S06 VPS 24 Volt DC Model
CE Approved – for S04 VPS 110 and 230 Volt AC Models
VPS means Valve Proving System
221073 – VPS 504 S06 Valve Proving System 120 Vac
224983 – VPS 504 S05 Valve Proving System 24 Vdc
221327 – VPS 504 S04 Valve Proving System 110 Vac
219881 – VPS 504 S04 Valve Proving System 230 Vac
