
Danfoss 020-1026 Check Valve
For contractors and industrial HVACR technicians, the Danfoss 020-1026 is a professional-grade NRV 35S check valve engineered to handle unidirectional flow with high reliability in large-scale systems. This piston-type valve is specifically designed for integration into both refrigeration and air conditioning liquid, suction, and hot gas lines. Featuring a 1 3/8" ODF solder connection, it ensures a leak-proof, secure fit and is optimized for use with a wide range of refrigerants, including R134a, R404A, R410A, and newer low-GWP blends like R1234ze. The angleway valve configuration allows for streamlined piping layouts, while the robust brass body and copper connections provide the durability required for high-pressure environments. With a maximum working pressure (MWP) of 667 psig (46 bar) and a significant Cv value of 33.52 gal/min, this check valve maintains system efficiency by minimizing pressure drops and preventing damaging backflow. It operates reliably across a broad temperature range from -58°F to 284°F, making it a versatile staple for demanding commercial cooling applications.
Key Benefits- Optimized Flow Performance: High-capacity design with 33.52 gpm Cv value minimizes pressure drop across the valve.
- Broad Refrigerant Compatibility: Suitable for HCFC, HFC, and modern oil-free refrigerant applications.
- Robust Construction: Forged brass body with copper ODF extensions facilitates easy brazing and long-term service life.
- Versatile Application: Angleway direction design provides flexible installation options in liquid or suction lines.
- Preventative Protection: Fast-acting piston mechanism effectively prevents back-condensation from warm to cold system components.
Is the Danfoss NRV 35S suitable for hot gas defrost lines?
Yes, the NRV series is designed to withstand high-temperature hot gas discharge, making it ideal for defrost circuits and heat pump applications.
What is the minimum pressure drop required to open the valve?
The 020-1026 requires a minimum differential pressure of approximately 0.6 psi (0.04 bar) to ensure the piston opens fully for optimal flow.
Can this check valve be installed in any orientation?
It is recommended to install the valve in horizontal lines or vertical lines with upward flow to ensure the piston gravity-resets correctly when flow stops.
This item is not eligible for free shipping.
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.
Original: $302.99
-65%$302.99
$106.05Danfoss 020-1026 Check Valve
For contractors and industrial HVACR technicians, the Danfoss 020-1026 is a professional-grade NRV 35S check valve engineered to handle unidirectional flow with high reliability in large-scale systems. This piston-type valve is specifically designed for integration into both refrigeration and air conditioning liquid, suction, and hot gas lines. Featuring a 1 3/8" ODF solder connection, it ensures a leak-proof, secure fit and is optimized for use with a wide range of refrigerants, including R134a, R404A, R410A, and newer low-GWP blends like R1234ze. The angleway valve configuration allows for streamlined piping layouts, while the robust brass body and copper connections provide the durability required for high-pressure environments. With a maximum working pressure (MWP) of 667 psig (46 bar) and a significant Cv value of 33.52 gal/min, this check valve maintains system efficiency by minimizing pressure drops and preventing damaging backflow. It operates reliably across a broad temperature range from -58°F to 284°F, making it a versatile staple for demanding commercial cooling applications.
Key Benefits- Optimized Flow Performance: High-capacity design with 33.52 gpm Cv value minimizes pressure drop across the valve.
- Broad Refrigerant Compatibility: Suitable for HCFC, HFC, and modern oil-free refrigerant applications.
- Robust Construction: Forged brass body with copper ODF extensions facilitates easy brazing and long-term service life.
- Versatile Application: Angleway direction design provides flexible installation options in liquid or suction lines.
- Preventative Protection: Fast-acting piston mechanism effectively prevents back-condensation from warm to cold system components.
Is the Danfoss NRV 35S suitable for hot gas defrost lines?
Yes, the NRV series is designed to withstand high-temperature hot gas discharge, making it ideal for defrost circuits and heat pump applications.
What is the minimum pressure drop required to open the valve?
The 020-1026 requires a minimum differential pressure of approximately 0.6 psi (0.04 bar) to ensure the piston opens fully for optimal flow.
Can this check valve be installed in any orientation?
It is recommended to install the valve in horizontal lines or vertical lines with upward flow to ensure the piston gravity-resets correctly when flow stops.
This item is not eligible for free shipping.
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.
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Description
For contractors and industrial HVACR technicians, the Danfoss 020-1026 is a professional-grade NRV 35S check valve engineered to handle unidirectional flow with high reliability in large-scale systems. This piston-type valve is specifically designed for integration into both refrigeration and air conditioning liquid, suction, and hot gas lines. Featuring a 1 3/8" ODF solder connection, it ensures a leak-proof, secure fit and is optimized for use with a wide range of refrigerants, including R134a, R404A, R410A, and newer low-GWP blends like R1234ze. The angleway valve configuration allows for streamlined piping layouts, while the robust brass body and copper connections provide the durability required for high-pressure environments. With a maximum working pressure (MWP) of 667 psig (46 bar) and a significant Cv value of 33.52 gal/min, this check valve maintains system efficiency by minimizing pressure drops and preventing damaging backflow. It operates reliably across a broad temperature range from -58°F to 284°F, making it a versatile staple for demanding commercial cooling applications.
Key Benefits- Optimized Flow Performance: High-capacity design with 33.52 gpm Cv value minimizes pressure drop across the valve.
- Broad Refrigerant Compatibility: Suitable for HCFC, HFC, and modern oil-free refrigerant applications.
- Robust Construction: Forged brass body with copper ODF extensions facilitates easy brazing and long-term service life.
- Versatile Application: Angleway direction design provides flexible installation options in liquid or suction lines.
- Preventative Protection: Fast-acting piston mechanism effectively prevents back-condensation from warm to cold system components.
Is the Danfoss NRV 35S suitable for hot gas defrost lines?
Yes, the NRV series is designed to withstand high-temperature hot gas discharge, making it ideal for defrost circuits and heat pump applications.
What is the minimum pressure drop required to open the valve?
The 020-1026 requires a minimum differential pressure of approximately 0.6 psi (0.04 bar) to ensure the piston opens fully for optimal flow.
Can this check valve be installed in any orientation?
It is recommended to install the valve in horizontal lines or vertical lines with upward flow to ensure the piston gravity-resets correctly when flow stops.
This item is not eligible for free shipping.
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.












