Superior Refrigeration 594WA-21ST Ball Valve

The Superior Refrigeration 594WA-21ST Ball Valve is a heavy-duty 2-1/8" ODF ball valve engineered for critical isolation in high-capacity HVACR systems. Built with a forged brass body and featuring robotically welded body joints, this valve is designed to eliminate leak paths in demanding environments. It utilizes a full port design to ensure unrestricted flow and minimal pressure drop across the line, making it ideal for suction, discharge, and liquid line applications. The Integra-Seal technology incorporates a dual-stem seal design with PTFE packing and a secondary Teflon gasketed seal cap, providing triple protection against refrigerant loss without requiring the removal of the cap for valve operation.

This non-directional flow valve is compatible with a wide range of refrigerants, including R-410A, HFCs, HCFCs, and CO2, and is rated for a maximum design pressure of 700 PSI. The internal polished brass ball is supported by dual PTFE ball seals to ensure positive shut-off even during system evacuation or after a compressor burnout. With a 1/4 turn actuation and mechanical internal forged stops, technicians can quickly verify valve position at a glance. Its rugged construction and extended copper tube ends simplify the brazing process, maintaining seal integrity during installation.

• Unrestricted Flow: The full port refrigeration valve architecture prevents flash gas and efficiency loss in high-tonnage systems.
• Leak-Free Reliability: Features 100% factory-tested welded seams and a secondary seal that activates if the primary seat is compromised.
• Universal Compatibility: Rated for temperatures from -40°F to +325°F, making it suitable for both low-temp refrigeration and heat pump applications.
• Service Efficiency: The unique seal cap design allows for valve stem operation while the cap remains in place, reducing the risk of lost parts and service time.
• Robust Construction: Forged brass and high-pressure 700 PSI rating ensure durability in commercial-grade systems.

Is the 594WA-21ST bi-directional?
Yes, this is a non-directional HVAC ball valve, allowing it to be installed in any orientation within the piping layout without affecting flow performance or shut-off capability.

What is the maximum working pressure?
The Superior 594WA-21ST is engineered for a 700 PSIG design pressure, accommodating the higher operating pressures of R-410A refrigeration systems.

Can I operate this valve without removing the cap?
Absolutely. The Integra-Seal design is specifically made so the technician can adjust the valve position while the cap is on, providing double seal protection during active use.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.