Parker 274037-12 Check Valve

For veteran technicians looking to eliminate backflow issues in high-pressure refrigeration cycles, the Parker 274037-12 check valve (Model: CV5P-8FS-8FS) is a definitive solution. This 1/2 inch ODF check valve is engineered for high-capacity performance, featuring a straight-through flow design that minimizes pressure drop across the line. Constructed with a copper spring-loaded check valve assembly and stainless steel to brass seating, it provides a robust, metal-to-metal seal critical for preventing reverse flow in condenser and evaporator lines. With a UL recognition for 750 psig design pressure, this component is fully compatible with all CFC, HCFC, and HFC refrigerants, including R-22, R-410A, and modern blends. The Parker CV5P-8FS-8FS ensures unidirectional flow for HVAC backflow prevention in both residential and light commercial systems. Its 3-3/4 inch overall length and 5/8 inch outside diameter allow for efficient installation even in tight mechanical footprints.

• Metal-to-metal seating utilizes stainless steel on brass to maintain a reliable seal in diverse thermal conditions.
• Straight-through design allows for high flow capacities with a 2.16 Cv coefficient, reducing system energy loss.
• Copper construction facilitates easy brazing into 1/2" ODF lines while maintaining corrosion resistance.
• Spring-loaded ball style ensures fast closing response to pressure changes, protecting upstream compressors and sensitive components.
• Universal refrigerant compatibility enables use across a broad range of HVACR refrigeration parts without chemical degradation.

Can the Parker 274037-12 be installed in a vertical orientation?
Yes, because this is a spring-loaded ball check valve, it can be installed in any orientation—horizontal, vertical, or at an angle—and still maintain positive closure.

What is the cracking pressure for the CV5P-8FS-8FS model?
This model typically features a low cracking pressure of approximately 1 psi, allowing for efficient opening while ensuring rapid closure when the pressure differential is lost.

Is this valve suitable for high-pressure R-410A systems?
Absolutely. With a design pressure rating of 750 psig, it is specifically built to handle the high-load demands of contemporary R-410A and high-pressure liquid line applications.

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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.