Pulsing normally closed solenoid valves, POLYHEDRA line

Valves suitable for applications where high frequency operation is required in very short periods to maintain the refrigerant temperature accurately. These valves are suitable also for installation on oil lines, both to regulate oil flow from the oil separator to the compressor crankcase or to act as an oil injector for screw compressors.

Accessories for use with the following ASHRAE 34:2019 refrigerants, Class A1, A2L, or A3:

• HFC (R134a, R32, R404A, R407C, R410A, R507)
• HFO and HFO/HFC blends (R1234ze, R1234yf, R448A, R449A, R450A, R452A, R452B, R454B, R513A)
• HC (R290, R600, R600a, R1270)

Maximum allowable pressure PS = 50 bar.

Allowable temperatures TS = -40 / +150 °C

These valves are exclusively sold in the model without coil (S suffix).