Description
Siemens 257-02012B is a two way valve assembly used for precise control in HVAC systems. This 3/4″ valve has a C.V. (flow coefficient) of 6.3 flows needing moderate flow. It is made of brass and will work well for a long time under conditions. Because it operates between 35°F and 250°F, the valve can be used for a number of heating and cooling applications. A 3–8 PSI spring mechanism in this typically closed valve allows it to close on its own with no control signal essentialsafety feature. With its National Pipe Thread (NPT) connection type the valve is easily adapted to current HVAC systems through ordinary fittings.
