Bronze body features large unrestricted waterways, special heat resistant composition diaphragms, silicone relief seat and an easy to clean inbuilt stainless steel strainer. All units have a test lever and an inbuilt check valve to prevent backflow. Provides pressure control and protection from thermal expansion.
NOTE: THE RELIEF SECTION OF ALL CASH-ACME DUAL CONTROLS IS FOR THERMAL EXPANSION ONLY. FOR PROPER PRESSURE RELIEF PROTECTION, THE BOILER MUST ALSO BE PROVIDED WITH A PROPERLY SIZED ASME-RATED RELIEF VALVE.
Designed for hot water space heating installations.