Technical Specifications Parameter Specification Model 12P1731X032 Type Control Valve Assembly Valve Style Globe Valve Valve Size Likely 1.5 inch (encoded in "1731") Pressure Class ANSI Class 150 or 300 (encoded in model number) Actuator Type Pneumatic Spring-Diaphragm ("X032" configuration) Actuator Action Spring-Return (fail-safe) Air Signal 3-15 psig (0.2-1.0 bar) standard Flow Characteristic Equal Percentage or Linear (trim dependent) End Connections Flanged (RF facing standard) Body Material Carbon Steel (WCB) standard Trim Material Stainless Steel standard Temperature Range -20°F to 450°F (-29°C to 232°C) standard