How to Select a PU220 Brass Solenoid Valve for Fluid Control
Selecting a PU220 brass solenoid valve begins with the fluid and operating conditions, not the pipe thread alone. Two PU220 models can share a similar appearance while offering very different orifice sizes and Cv values. A valve that fits the pipe may still restrict flow, use the wrong seal, receive the wrong coil voltage, or operate outside its pressure range. A clear selection process prevents those errors before equipment is built or a replacement valve is ordered. The PU220 Series 2/2 Way Brass Solenoid Valve is a normally closed valve for electrical on/off control of air, water, compatible light oil, and other compatible neutral fluids. The range covers G1/8 through G1 ports, Cv values from 0.10 to 11.00, working pressure from 0.5 to 7 kgf/cm2, and an operating fluid temperature range of -5 to 80 degrees C. Available seal and voltage choices allow the valve to be configured for different machines, but every option must be confirmed against the real application. 1. Confirm the Required Valve Function PU220 is a 2-port, 2-position normally closed fluid control valve. With the coil…
