DUNGS VPS 504 219881
Overview
The VPS 504 is a DUNGS valve proving system for multifunctional gas controls. Its task is to prove the tightness of the safety shut-off valves in a gas train before the burner is allowed to start: the system pressurises the test volume between the valves and monitors the pressure, so that a leaking valve is detected before gas is admitted. The official DUNGS product data lists a maximum operating pressure of 500 mbar, an approval to DIN 1643 and a test volume of up to 4 litres.
This DUNGS VPS 504 unit is identified with order number 219881. Per the original listing the unit is rated 230 V AC, 50 Hz, with a maximum current of 4 A, IP54 enclosure protection and a maximum pressure of 500 mbar.
Engineering & Design
Valve proving works by closing both safety valves, opening a test valve to equalise pressure in the section between them, then closing the test valve and monitoring the pressure over the proving time. If the pressure holds, both valves are tight and the burner release can proceed; if the pressure decays, a valve is leaking and the system locks out.
The VPS 504 is designed to work with multifunctional gas controls, integrating the proving function into the burner control sequence. The unit is approved to DIN 1643, the German standard for valve proving systems, and handles test volumes of up to 4 litres at a maximum operating pressure of 500 mbar.
Key Features
- DUNGS VPS 504 valve proving system for multifunctional gas controls
- Maximum operating pressure: 500 mbar (official DUNGS data)
- Test volume: up to 4 litres (official DUNGS data)
- Approval: DIN 1643 (official DUNGS data)
- 230 V AC, 50 Hz; maximum current 4 A; IP54 (per original listing)
- Order number: 219881
Applications
- Automatic tightness testing of gas safety shut-off valves
- Gas trains with multifunctional gas controls
- Industrial and commercial burner systems
- Safety upgrades to existing gas trains with DUNGS VPS 504 proving
Specifications
| Type | DUNGS VPS 504 |
| Function | Valve proving system for multifunctional gas controls |
| Maximum operating pressure | 500 mbar |
| Test volume | Up to 4 litres |
| Approval | DIN 1643 |
| Voltage | 230 V AC, 50 Hz (per original listing) |
| Maximum current | 4 A (per original listing) |
| Enclosure | IP54 (per original listing) |
| Order number | 219881 |
Compatibility & Integration
The DUNGS VPS 504 is installed in the gas train and wired into the burner control sequence, where it performs the valve proving step before burner start. The 230 V AC, 50 Hz supply matches standard European burner control circuits, and the IP54 enclosure suits installation in the burner cabinet.
Confirm the test volume of the gas train section and the operating pressure against the VPS 504 ratings before selection. Installation and commissioning must be carried out by qualified personnel in accordance with local gas regulations.
Ordering Information
To order the DUNGS VPS 504 valve proving system from Seven Star LLC, the proven solution for automatic valve tightness testing,, quote type VPS 504 and order number 219881. We confirm availability and delivery to your site in Oman or anywhere in the GCC, and we verify the ratings against your gas train before dispatch.
Why Seven Star LLC
Seven Star LLC supplies gas train components and burner spares to industrial customers across Oman and the wider GCC region. Every DUNGS VPS 504 valve proving system we supply is checked against the listed ratings before dispatch, and our team confirms the unit matches your gas train before you order.
FAQ
What does the DUNGS VPS 504 do?
The VPS 504 is a valve proving system that automatically tests the tightness of gas safety shut-off valves before the burner is allowed to start, preventing gas from passing through a leaking valve.
What is the pressure rating of the VPS 504?
The maximum operating pressure is 500 mbar, with a test volume of up to 4 litres, per official DUNGS product data.
Which approval does the VPS 504 carry?
The VPS 504 is approved to DIN 1643, the German standard for valve proving systems.
What is the electrical rating of the VPS 504?
Per the original listing: 230 V AC, 50 Hz, maximum current 4 A, IP54 enclosure protection.
What is the order number of this VPS 504?
The DUNGS order number is 219881, as stated in the original listing.
DUNGS (Karl Dungs GmbH & Co. KG) is a German specialist in gas-safety systems, pressure regulators, valves and electronic control modules for combustion equipment and process-heat systems. Founded in 1945, the company has established global approvals, high safety standards and long service life in heavy industrial and process-plant environments. Seven Star LLC supplies original DUNGS components for industrial projects across Oman and the Middle East.
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