Robertshaw 700-522 1" MV Slow Open Gas Valve 3.5" WC

The Robertshaw 700-522 1” MV Slow Open Gas Valve is an essential component of the HVAC systems. Designed to function as a control system in gas utilities. It works by controlling the flow of the natural gas to the burner assembly. The Main Valve is opened only when the system requires heat to be produced. It has a slow-opening mechanism that allows the release of gas into the burner in a slow manner to avoid noise, damage, or ignition problems. This controlled opening also helps minimize flame rollout and allows a smoother and quieter start-up. It is used together with thermostats and ignition systems. It opens to allow the flow of the required heat and closes as soon as the required temperature is achieved.