This valve automatically releases the air generated in
the hot water circuit outside.
AUTOMATIC AIR VENT VALVE
CAV
This valve is provided with a check device, a negative
pressure operating device, and a strainer.
RELIEF VALVE
WSV
This valve being provided with a diaphragm is highly
reliable and the most suitable for the maintenance of
a hot water supply unit.
VSV:This valve is provided with a negative pressure.
