Balanced piston for closer outlet pressure control regardless of variations in inlet pressure and a rapid fill feature with an improved larger seat for higher capacities and quicker fill. Has an iron body, brass internal parts on the regulator, special heat resistant composition diaphragm and O-rings, brass strainer screen, and stainless steel springs. Relief valve has bronze body, silicone seat disc and stainless steel spring.
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, the CR Series valve is suitable for 1-, 2- or 3-story buildings without adjustment.