Hansen HS4A/0, 3/4 (20MM) Solenoid Valve for Refrigerant

These advanced design, strong bodied, precision manufactured solenoid valves control the on-off flow of refrigerant. They are superior in their ability to overcome dirt and sticky oil during opening and closing, and operate smoothly even in an oil-free "dry" system. When electrically energized, the upstream pressure is ported through the pilot solenoid to the top of the piston to push it downward and open the main valve seat wide; when de-energized, pressure is no longer ported to the top of the piston and a spring closes the main valve seat to stop flow in the arrow direction on the valve body.

Key Features:

• Encapsulated Coil
• Strong Ductile Iron or Steel Body
• Reliable Teflon Seat
• Manual Opening Stem
• Dirt Wiping Teflon Seal on Disc Piston
• Stainless Steel Closing Spring

Additional Features:

• Tolerant of dry systems
• Teflon main & pilot seats
• Encapsulated Hansen standard coil
• Heavy duty, pilot operation
• 300 psi MOPD (20.7 bar), 500 psi (34.4 bar) for CO2
• Simple Serviceable design
• Available close-coupled strainer/check valve
• Non-asbestos gaskets
• CSA certified status
• CE available for 1-1/4" (32mm) and larger
• Wireless pilot lights
• Weld-in-line Available; Contact Factory