Description
Siemens 257-02055 is High Performance 1/2″ 2 Way N.O. Valve Assembly for controlling fluid flow in HVAC systems. It has a pneumatic actuator that is within spring range of 3 to 8PSI and thus guarantees the angles in the valve positioning. The 1/2″ FNPT valve connection size is standard, seamless integration into all HVAC applications. Flow capacity of 2.5 Cv. The valve is normally open and the actuator is not engaged the valve remains open for uninterrupted flow. With its versatility operating over a temperature range of 35°F to 250°F as its robust construction, the valve is suited for use under any environmental conditions.
