Parker - RS Bare Solenoid Valve.This compact, heavy-duty, pilot‑operated, plated ductile iron-bodied solenoid valve is suitable for Ammonia, R‑12, R‑22, R‑502 and other common refrigerants for liquid, suction and hot gas lines, and refrigerant oil lines. The plunger‑needle assembly is also used with most other Refrigerating Specialties Industrial Solenoid Valves. This valve is usually ordered with a close‑coupled stainless steel screen strainer. (See current Bulletin 00‑10 for strainer information.)A solenoid valve is an electrically operated device used to control the flow of liquids or gases in a fully open or fully closed configuration. The S8F is a normally-closed solenoid valve to control the flow of refrigerant. Like all Refrigerating Specialties Solenoid Valves, this valve does not modulate.Features:Standard Coil Housing Meets NEMA 3R and NEMA 4 ‑ Rain TightCoil Housing Surpasses NEMA Salt Spray TestPlunger‑Needle Assembly - Same for S4A, S5A, S6N, S6AReplaceable Piston Plug AssemblyMolded Class “B” Coil ConstructionSame Coil Fits All Refrigerating Specialties Solenoid ValvesPilot Light AvailableStainless Steel Needle, PTFE SeatsManual Opening Stem MOPD20.7bar (300PSIG)MRP 28 bar(400PSIG)