Copeland 998-0511-02 Valve

The Copeland 998-0511-02 Discharge Service Valve is a critical component for maintaining hermetic integrity and system serviceability in high-capacity refrigeration and HVAC applications. Designed specifically for Copeland semi-hermetic compressors, this bolt-on service valve features a 1-1/8" sweat connection, ensuring a secure, leak-free transition to the discharge line. Engineered to handle high-pressure discharge gas, the 998-0511-02 allows technicians to isolate the compressor during maintenance or replacement without recovering the entire system refrigerant charge, reducing downtime and labor costs. Its robust cast-iron or brass construction is built to withstand the thermal stresses of the discharge port, providing a reliable HVAC replacement valve that meets original equipment manufacturer specifications for fit and flow coefficient.

• Universal Compatibility: Fits a wide range of Copeland Discus and reed-valve compressors requiring a standard two-bolt flange configuration.
• Enhanced Flow Dynamics: Precision-machined internal porting minimizes pressure drop across the discharge service valve, maintaining system efficiency.
• Durable Seal Interface: Engineered for use with high-temperature gaskets to prevent refrigerant leaks under extreme thermal cycling.
• Standardized Porting: Includes a 1/4" NPT gauge port for accurate high-side pressure readings and simplified system diagnostics.

Common Technical Questions

What is the torque specification for the mounting bolts?

For most Copeland applications, mounting bolts for this flange size should be torqued to 40-50 ft-lbs to ensure an even seal and prevent gasket failure.

Can this valve be used with R-410A and R-404A systems?

Yes, the Copeland 998-0511-02 is designed for compatibility with common HFC, HCFC, and HFO refrigerants, provided the lubricant is compatible with the system's elastomers.

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.