These reliable, flanged bodied valves are ideal for use as standard, stock refrigerant solenoid valves. While primarily for ammonia, these valves are also suitable for R22, R134a, CO2 and other approved refrigerants and warm refrigeration oil. Most common use is to automatically stop liquid feed to recirculating liquid overfeed evaporators, and as liquid makeup solenoid valve for pump recirculators. They are also suitable for hot gas defrost supply and evaporator suction stop applications. (Note: For gravity liquid drain or equalization applications, use low pressure drop Hansen Type HCK2 gas-powered suction stop valves or Type HS9B gas-powered solenoid valves.)
HS4A
¾”-4” (20-100mm): Ductile iron, ASTM A536 5” & 6” (125 & 150mm): Cast steel, ASTM A352 LCB Adapter: Ductile iron, ASTM A536 Piston: Steel, disc type, spring energized teflon seal V-Port/Seat: ¾”-1¼” (20-32mm): Steel, plated, with teflon seat 1½”-6” (40-150mm): Ductile iron with teflon seat Main Seat: ¾”-1¼” (20-32mm): Integral ductile iron 1½”-6” (40-150mm): Stainless steel, removable Gaskets: Non-asbestos, graphite composite Manual Opening Stem: Steel, plated Solenoid Tube: Stainless steel Solenoid Plunger: Stainless steel Pilot Orifice: Stainless steel Flanges: Forged steel, ASTM A105 Max. Opening Pressure (MOPD): 300 psi (20 bar), 500 psi (34 bar) for CO2 Safe Working Pressure: 400 psig (27 bar), 600 psig (40 bar) for CO2 O p e r a t i n g Te m p e r a t u r e : – 6 0 ° F t o +2 4 0 ° F (–50°C to +115°C); (Lower temperatures possible at pressure down-ratings)