Description
Siemens 257-02058 Pneumatic Actuator 1/2″ 2-Way Valve Assembly is designed for high efficiency flow management in HVAC systems. This valve features high flow coefficient of 4Cv, commanding high flow rates. It is 3-8 PSI spring range, and meets ANSI Class 250 durability standards. Stainless steel valve High corrosion resistant and long life. It has internal thread connections for a safe installation and operates from 35°F to 250°F. A great valve for commercial and industrial HVAC systems that control air or water flow with precision. Brings control, efficiency and lowered application energy, as well as stable, efficient indoor climate.









