Product Details: DUNGS Valve Proving System

Description

The DUNGS VPS 504 S04 is a compact valve proving system designed for checking safety shut-off valves in gas applications. It verifies valve integrity before every burner start or after every shutdown, enhancing the safety of your combustion installation. This model is engineered for reliability and easy integration into existing systems.

Specifications

• Manufacturer: DUNGS
• Model: VPS 504 S04
• Part Number: 219881
• Input Voltage: 230 V AC at 50 Hz / 240 V AC at 60 Hz
• Maximum Operating Pressure: 500 mbar (50 kPa)
• Enclosure Rating: IP54
• Ambient Temperature Range: -15 deg C to +70 deg C
• Fuse Type: T 6.3 L 250V (replaceable)

Label Info

• ID-No.: CE-0085AP0168
• Imax: 4A

Application

Ideal for use in industrial and commercial gas burners, gas boilers, and other combustion plants where automatic and reliable checking of safety valves is required to prevent gas leaks.

Country of Origin

Made in Germany.

CO2 Impact

By purchasing this reconditioned part, you are contributing to a circular economy and helping to avoid approximately 32 kg of CO2 emissions associated with the production of a new unit. This saving is comparable to driving a car for 160 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

What is the primary function of the VPS 504 S04 in a combustion system?

The VPS 504 S04 is a safety device that automatically checks the gas safety shut-off valves for leaks before burner start-up or after shutdown. This ensures that no unburned gas can escape, preventing potential explosions.

Can the internal fuse be replaced by the user?

Yes, the label indicates "Sicherung eingebaut, auswechselbar" (Fuse installed, replaceable). The specified fuse type is T 6.3 L 250V. Always disconnect the device from power before attempting to inspect or replace the fuse.

What do the 'Stoerung' (red) and 'Betrieb' (yellow/green) lights indicate?

The 'Betrieb' light (Operation) indicates that the system has power and is running its test sequence or is in standby. The 'Stoerung' light (Fault) will illuminate if the system detects a leak in one of the valves during the test, preventing the burner from starting and indicating a need for maintenance.

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Last Update: Friday, March 13, 2026