Dungs 259697 Valve Proving Systems, Panel Mount VPM-VC (Including Base)

The DUNGS VPM-VC is a valve module which can be used with any valve. It checks that both safety shutoff valves in a gas train are fully closed and tight before either a system startup and/or after system shutdown when wired and interlocked to a suitable flame safeguard control. The VPM—VC will halt the startup sequence for a gas burning equipment if it detects an open/untight safety shutoff valve, thus preventing ignition under undesirable conditions.

The VPM-VC is recommended for industrial and commercial heating applications. Some authorities having jurisdiction accept the VPM-VC in lieu of “proof of closure” when integrated with the pre-ignition system and/or in lieu of a vent valve when it checks the valves at start up and shut down. The VPM-VC is suitable for any type of gas and pressure as it is not in contact with the gas. It can be set by jumper for most standard values and can be programmed through a service box and software for other valves. It allows to comply with EN746-2 requirement of tightness testing up to the burner and allows counting the cycling of the valves as requested by NFPA 86. Requires the use of at least one pressure switch in between the safety valves and can be used with or without auxiliary valves depending on the application. SIL 2 Approved. VPM-VC allows testing at start-up, shutdown or one valve per cycle. CSA Pending.

Dungs 259697 Features:

• 120 Vac (+10%/-15%)
• 50/60 Hz. @ 120 Vac
• NEMA 12

Technical Literature: 

Dungs Valve Proving Systems, Panel Mount VPM

PART NUMBER HAS BEEN CHANGED - OLD PART NUMBER #259-697