Parker Hannifin S4A-1 1 Inch Port Solenoid Valve Without Strain Relief and Flanges

The Parker Hannifin S4A-1 is a pilot-operated solenoid valve designed for industrial and commercial refrigeration applications. This high-performance valve controls refrigerant flow in HVAC systems with a 1" port connection size, making it ideal for medium-capacity refrigeration systems.

Key Features:

• Suitable for ammonia, R-12, R-22, R-502, and other approved refrigerants and oils
• Spring closing valve for use in refrigerant liquid, hot gas, or suction lines
• Temperature range: -50°C to 105°C (-60°F to 220°F)
• Design pressure: 28 bar (400 PSIG)
• Maximum opening pressure differential: 21 bar (300 PSIG)
• Stainless steel needle and manual opening stem
• NEMA 3R and NEMA 4 rain-tight coil housing
• Requires minimum 0.21 bar (3 PSI) pressure drop to fully open

The Type S4A Solenoid Valve is furnished with FPT Internal NPT, Socket Weld, Weld Neck, or ODS connections. The valve may be easily removed from between the flanges for servicing. This unit is sold without strainer and flanges, which must be purchased separately. It is advisable to install a strainer upstream of each valve to prevent entrance of foreign material.

Parker's S4 solenoids are the refrigeration industry's standard and have provided decades of safe and reliable operation in chillers, condensers, evaporators, and heat pumps.