Valve,Assembly, 2 Way Normally Open, 3/4", NPT x Union Male, 6.3 Cv Equal Percentage Flow Forged Brass Body with Brass Trim Valve Body (10-15 PSI Spring Range) and 10-15 PSI Spring Range Pneumatic Actuator
2W N/O 10-15 FxUM 3/4" 6.3 For Siemens Building Technology Part# 256-02045A