Description
This Siemens 257-02048 Pneumatic Actuator 1/2″ 2-Way Valve Assembly is used to give precise control in HVAC systems. This valve has a flow coefficient of 0.4Cv and handles those lower flow rates well. It has a spring range of 3 – 8 PSI and meets ANSI Class 250 specifications for high pressure applications. Made of stainless steel, so it can be used without fearing corrosion. The valve has internal thread x union exterior thread connections for a stable installation. It is 3 pounds, and operates in a temperature range of 35°F to 250°F. This is a perfect choice for commercial and industrial HVAC applications that require the precise control of air or water flow. Advantages of such a system are higher system performance, better control precision, and energy savings leading to a stable and efficient indoor climate.









