Leak Det.
Gas Leak Detector
Zhongli Weiye supplies valve proving systems for burner gas trains, matched to the gas type, pressure range and program controller of your installation.
What a gas leak detector does on a burner
A gas leak detector on a burner installation is usually a valve proving system rather than a room air monitor: it checks that the safety shut-off valves on the gas train are actually holding before the burner is allowed to start, by pressurising the section between them and watching for a pressure rise that would indicate a leaking seat.
Because it proves the valves and not the air in the room, it will trip on a valve that weeps only slightly — which is often the earliest sign that a solenoid valve seat is worn rather than evidence that the detector is faulty. Room-mounted gas detectors are a different device entirely and are not a substitute.
- Typical symptom: the burner proves but will not start, or passes one day and trips the next — often a weeping valve seat rather than a failed detector.
- Check before ordering: gas type, pressure range of the gas train, supply voltage, and the signal your program controller expects.
- Tell us the detector model and the burner it protects if you are replacing one.
Leak Det. models
Dungs Gas Leak Detector VPS 504
The Dungs VPS 504 gas leak detector is a safety instrument for combustible, toxic and asphyxiant gases across industrial, commerci…
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Leak Det. FAQs
Do I need a valve proving system or a room gas detector?
They do different jobs. A valve proving system checks the gas train's shut-off valves before every start; a room detector monitors the air in the plant room for escaping gas. Many installations need both — your local gas code decides. We supply the valve proving side and match it to your controller.