The vacuum relief valve is used on rheem marathon water heaters to help prevent the plastic composite tank from collapsing.
Vacuum relief valve water heater diagram.
The vacuum relief valve shall be ansi z21 22 rated and csa certified.
Nowhere does the owner s manual say this.
It is especially well suited for many domestic and commercial systems.
A watts model n36 m1 vacuum relief valve shall be installed on domestic hot water supply tanks heaters unit heaters steam kettles as indicated on plans.
The valves prevent the buildup of negative pressure which can unbalance the system or damage the storage vessel.
Replacement for the failed original valve on my marathon water heater.
Rheem protech vacuum relief valves feature true oem performance.
These valves are specifically designed for tank protection.
Series n36 water service vacuum relief valves are used in water heater tank applications to automatically allow air to enter into the piping system to prevent vacuum conditions that could siphon the water from the system and damage water heater tank equipment.
Relieves negative pressure from inside the tank.
These valves are specifically designed for tank protection.
It works by preventing internal vacuum conditions that could result in burned out heaters and or collapsed storage tanks.
Vacuum relief valves are used in water heater tank applications to automatically allow air to enter into the piping system to prevent vacuum conditions that could siphon the water from the system and damage water heater tank equipment.
The valves prevent the build up of negative pressure which can unbalance the system or damage the storage vessel.
Direct replacement for rheem marathon water heaters.
They have a brass body construction with npt male inlet connection and a protective cap.
These valves are suitable for low pressure steam and water service and are ideal for use in water heaters and.
The vr20 vacuum relief valve is designed to protect hot water supply systems and pressure vessels against negative pressure.
Luckily we discovered the original valve failing before it had a chance to flood our house.