Danfoss 020-1061 NRV 35S 1 5/8" ODF Angleway Solder Check Valve – 29 m³/h Kv, 46 bar

Danfoss NRV 35S (020-1061) is an angleway one-way check valve designed for high-flow, high-pressure systems. Offered with a 1 5/8 inch (41 mm) ODF solder connection, this model provides safe use in large-capacity refrigeration systems with a Kv value of 29 m³/h and a maximum working pressure of 46 bar. It offers compatibility with its oversize connection note.

Technical Specifications

• Product Code: 020-1061
• Model: NRV 35S
• Connection Type: Solder (ODF)
• Connection Size: 1 5/8 inch
• Design: Angleway
• Flow Direction: One-way
• Kv Value: 29 m³/h
• Cv Value: 33.52 gal/min
• Min. Pressure Drop: 0.04 bar (0.6 psi)
• Max. Working Pressure: 46 bar (667 psi)
• Operating Temperature: -50 °C to +140 °C
• Body Material: Brass
• Connection Material: Copper
• Connection Note: Oversize (large connection)
• Flow Indicator: Embossed direction arrow
• Oil-Free Refrigerant Compatibility: Suitable

Compatible Refrigerants

• R1233zd(E), R1234yf, R1234ze(E), R1270, R134a, R170, R22, R290, R32
• R404A, R407A/C/F/H, R410A, R448A, R449A/B, R450A, R452A/B
• R454A/B/C, R455A, R507A, R513A, R515B, R516A, R600, R600a

Certificates and Compliance

• Approvals: CE, UL (C UL US LISTED), EAC, UKCA
• PED Category: Category I
• RoHS Compliance: EU & China RoHS (with exemptions)
• SCIP Dossier No: b3a34751-5701-488e-98f4-24be945efdc1

Physical Properties

• Gross Weight: 1.428 kg
• Net Weight: 1.306 kg
• Volume: 3.328 liters
• EAN: 5702422115236

Applications

NRV 35S (020-1061) is used in large commercial and industrial refrigeration systems to prevent the backflow of liquid and gas. Thanks to its angleway design, it provides installation flexibility and efficient use in tight spaces. With its piston design and high flow capacity, it is a safe and long-lasting solution.