Honeywell Gas valve VR4601CB1073B

The Honeywell VR4601CB1073B is a compact automatic gas solenoid valve designed for gas flow control in home heating systems, boilers, and water heaters. It features a flanged connection with inlet and outlet diameters of 23 mm, and operates with a maximum inlet pressure of 60 mbar and a nominal inlet pressure of 25 mbar. The valve has a flow capacity of 4.2 m³/h at a pressure drop of 3 mbar, and includes a softlite pressure of 7 mbar with a softlite time of 1.5 seconds. It is certified to CE standards and meets leakage requirements according to EN 126.

When selecting a gas valve of this type, ensure the connection type (flanged) and inlet/outlet diameters match the existing piping. Verify the maximum inlet pressure and operating pressure ratings are compatible with your system's supply pressure. Check the flow capacity to ensure it meets the burner's demand. The valve's mounting orientation can be adjusted within 90 degrees from vertical, and it has two threaded mounting holes for installation.

Common failure modes for gas valves of this kind include sticking or leaking due to debris or wear, leading to improper gas flow or failure to close. Symptoms may include burner ignition issues, fluctuating flame, or gas odor. Check for proper electrical connection to the actuators, inspect the inlet screen for blockage, and test for leaks using appropriate methods.