Honeywell Gas valve VR4625A1037U

The Honeywell VR4625A1037U is a compact automatic gas solenoid valve designed for gas flow control in household heating systems, boilers, and water heaters. It features a 2.8 mm output aperture and flow indication in m3/h. The regulator spring can be locked when pressure regulation is not required. This valve is suitable for use with various gases including natural gas, liquefied petroleum gas, and manufactured gases.

Parts of this type are selected by matching the valve's connection size, voltage, and gas type compatibility with the system. Installation requires ensuring the valve is positioned within 90 degrees of vertical with actuators on top, and that the inlet and outlet fittings (9 mm outer diameter) align correctly. The valve base has two threaded mounting holes for secure attachment. Before ordering, verify the required closing force class (e.g., A, B, C, J) according to EN 161.

Common failures include the valve failing to open or close properly, leading to no gas flow or gas leakage. Symptoms may include burner ignition failure, unstable flame, or inability to modulate gas flow. Check for power supply issues, clogged internal filter, or a stuck regulator spring. If the valve does not respond to control signals, inspect the electrical connector and actuator.