Four Way Solenoid Valve
Introduction
Solenoid valves can be used in three position, four way combinations of fluoride and ammonia screw refrigeration compressors and air compressor energy control systems. They can also be used in hydraulic pipelines.
Technical Data
Max. working Pressure: 3MPa
The differential Pressure value of opening and closing value: 0 ~ 2.1MPa
Liquid Temperature: -20 ~ 110℃
Ambient Temperature: -20 ~ 50℃
Available Medium: R134a, R22, R407c, R404a, R717, air and oil
Voltage of coil AC: 24V, 110V, 220V, 380V
Schematics
1. When the coil is energized: 2 and 4. When the coil is not energized: 1 and 3 PA, BT-Pass, the piston moves to the left.
2. When the coil is energized: 2 and 4. When the coi is not energized: 3 PB, AT-pass, piston moves to the right (increased pressure)
3. The nitrogen test runs after shutdown, coil: 1 and 3 energized coil, 2 and 4: loss of power, PB, AT-pass. The piston moves to the right side (compressor minimum load state)
4. When the coil is 1, 2, 3 or 4, and a loss of power, with all pipes closed, the valve remains in a static pressure state (the piston remains in its de-energized position and does not move).
