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These are some typical 2-Way and 3-Way Normally Open and Closed low-power solenoid valves that are intended for portable refrigerant recover-recycling systems. Their inlet pressure ratings range up to 500 psi. They come equipped with 1/8" and 1/4" NPT pipe sorts, 3/8" copper sweat tubing, or with provisions for manifold mounting. Spade terminals, lead wires, or conduit connections for standard AC or DC voltages are available. Orifice sizes range from 1/32" to 1/4". Also available are compact stainless steel, brass, and aluminum manifolds with up to eight inlet ports. Some models have built-in back pressure designs, to eliminate redundant check valve by stopping possible refrigerant leakage during servicing.
Series 20 with Back Pressure:
2-Way Normally Closed
Orifice size: 5/64
Voltage: Any AC or DC voltage
Inlet Pressure: 280 PSI max
Back Pressure: 150 PSI max
Power Consumption: 12 Watts AC; 9.5 Watts DC
Electrical Connections: Spade Terminals
Body Connections: 1/8 NPT pipe ports or
copper (sweat) tubing
Seals: Neoprene
Series 20 without Back Pressure:
2-Way Normally Closed
Orifice Size: 5/64
Voltage: Any AC or DC Voltage
Inlet Pressure: 300 PSI max
Back Pressure: None
Power Consumption: 12 Watts AC; 9.5 Watts DC
Electrical Connections: Spade Terminals
Body Connections: 1/8 NPT pipe ports or
copper (sweat) tubing
Seals: Neoprene
Series 50:
2-Way Normally Closed
Orifice Size: 1/16 or 5/64
Voltage: 1/16 - AC or DC
5/64 - Any AC
Inlet Pressure: 300 PSI max
Back Pressure: None
Power Consumption: 6.6 Watts AC; 7 Watts DC
Electrical Connections: Spade Terminals
Body Connections: 1/8 NPT pipe ports or
manifold mounting
Seals: Neoprene