Watts ETX30 1/2" Diaphragm Type Expansion Tank Replaces 0066606

Watts ETX30 1/2” Diaphragm Type Expansion Tank is a pressure control unit produced for use in the hydronic heating systems of HVAC. It absorbs the surplus pressure of water through thermal expansion and saves the boilers, pipes, and other system elements from damage. With a pre-pressurized steel tank that has a robust diaphragm, it separates air from system water ensuring uniform pressure and eliminating waterlogging. Widely used in applications of residential and light commercial in HVAC systems, this ensures safe and efficient operation by eliminating pressure fluctuations and increasing the longevity of the system. Its simplistic design gives ease of installation and is integral to system reliability and protection from leaks or rupture and is vital to optimal HVAC functioning.