Superior Refrigeration 593WA-15ST Ball Valve

Engineered for high-capacity commercial systems, the Superior Refrigeration 593WA-15ST Ball Valve is a technical-grade 1-5/8" ODF ball valve designed for permanent isolation in refrigeration and air conditioning circuits. Featuring the proprietary Integra-Seal technology, this valve eliminates the need for synthetic O-rings, utilizing dynamic PTFE ball seals and a robotically welded forged brass body to ensure zero-leak performance under extreme thermal stress. The full port design provides an unrestricted flow path with a Cv rating of 135, minimizing pressure drop across the line—critical for maintaining system efficiency in HVACR refrigeration shutoff applications. This bi-directional flow valve is compatible with CFC, HCFC, and HFC refrigerants, including high-pressure R-410A systems, thanks to its 800 PSIG design working pressure. Forged brass construction and copper tube extensions facilitate clean, reliable brazing, while the unique seal cap allows for valve operation even when the cap is in place.

Key Benefits

• Integra-Seal Double Protection: Dual stem seal design utilizing PTFE packing provides a superior secondary seal even in unfavorable conditions like compressor burnout.
• Unrestricted Flow: Full flow ports maintain maximum system capacity and reduce energy consumption by preventing turbulence.
• Broad Temperature Range: Certified for operation from -40°F to +325°F, making it suitable for liquid, suction, and discharge line applications.
• Durable Construction: Robotically welded forged brass body and polished brass ball resist corrosion and external leaks.
• Quarter-Turn Operation: Enables rapid shut-off with mechanical internal forged stops to ensure precise open or closed positioning.

Common Questions

Does this valve require disassembly before brazing?
While the forged brass body is robust, best practices for 1-5/8" ODF ball valve installation involve using a wet rag or heat-sink paste on the valve body to protect the internal PTFE ball seals from excessive heat during the brazing of copper extensions.

Can this be used for CO2 applications?
The 593WA-15ST is designed for standard high-pressure refrigerants. For subcritical or transcritical CO2 systems, verify that the 800 PSIG rating meets your specific subcritical pressure requirements; it is widely used with HFC and HCFC refrigerants.

Is the flow directional on the 593WA series?
No, these refrigerant shutoff valves are non-directional. The internal relief port design ensures effective shut-off and pressure equalization in either direction of flow, including during system evacuation.

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.