Diaphragm expansion vessel 12l, Cal Pro

Membrane expansion vessel from the Cal Pro series of the ZILMET brand with a volume of 12 liters. The vessel is designed to be mounted to a closed system to absorb the thermal expansion of the water in it. This avoids a dangerous increase in pressure or discharge of water from the system.
ZILMET membrane vessels from the Cal Pro series are specially designed for connection to closed-type heating systems. They are available in different volumes, according to the requirements of different capacity installations. The membrane of the expansion vessel is placed under pressure depending on the volume of the vessel.
This Cal Pro expansion tank model is spherical without support. The housing is made of high quality carbon steel. The surface is powder coated in red. The membrane of the expansion vessel is made of high quality, strong and elastic synthetic rubber.
Each ZILMET vessel is 100% tested before being placed on the market.