Apollo Valves 37-200, 37LF-200 Series, Model VR, Water Heater Vacuum Relief Valves

The Apollo® 37-200 and 37LF-200 Series Model VR Vacuum Relief Valves are designed to automatically vent a system should a vacuum occur, and are often used for water heater vacuum relief. This safety relief valve prevents siphoning of water from the system, and prevents tank collapse. The Apollo® 37-200 features a new brass poppet for improved strength, is suitable for LP steam with a max of 15 psig, and will provide automatic vacuum relief at less than 1/2″ vacuum. Lead free options are also available.