Safety valve AF-4 for domestic hot water tanks 6 Bar - 1/2"
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Description
APPLICATION:
The AF-4 safety valves are designed for protection against too high water pressure on water heaters. Available are valves for 0,6 MPa nominal pressure.
CONSTRUCTION:
The valve body and all other metallic parts are made of brass. The sealing gaskets are of rubber adequate to its working conditions. All springs are of stainless steel.
These valves can realize three primary functions:
- The safety valve "A": Opens the passage "1" for the outflow of water when the pressure in the tank increases over its permissible limit.
- The check valve "B": For filling the heater with water. It also prevents the outflow of water from the tank back into the supply line in case of pressure failure.
- The return valve "C": Opens the outflow of water from the tank into the supply line in case of an excessive pressure rise in the tank exceeding supply line pressure. It makes possible to decrease the pressure in the tank without uptake of hot water from it.
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