Description
Siemens 256-02045A is a two way usually open valve assembly for precise control of water flow in HVAC systems made of robust brass operating in temperatures from 35°F to 250°F, and withstands pressures up to ANSI Class 250. The valve has a 3/4″ connection and Cv of 6.3, which guarantees sufficient water supply. It features a pneumatic actuator that opens and closes according to air pressure signals. force is needed to operate the valve is determined by the spring range of 10-15 PSI. The valve opens if enough air pressure and pumps the water. The spring closes the valve when the air pressure drops so that it regresses the flow of water.
