Danfoss 020-1020 NRV 22S 7/8" ODF Angleway Solder Check Valve – Angled Design, 8.5 m³/h Kv, 46 bar

Danfoss NRV 22S (020-1020) is a high-quality check valve with an angleway design; with its 7/8 inch (22 mm) ODF solder connection size, it ensures that flow in refrigeration systems occurs in one direction only. With a maximum working pressure of 46 bar and its piston-type design, it offers a safe, leak-tight and durable solution.

Technical Specifications

• Product Code: 020-1020
• Model: NRV 22S
• Type: Angleway
• Connection Type: Solder (ODF)
• Connection Size: 7/8 inch (22 mm)
• Flow Direction: One-way (single-flow)
• Kv Value: 8.5 m³/h
• Cv Value: 9.83 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
• Flow Direction Indicator: Embossed 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, R463A, R507A, R513A, R515B, R516A, R600, R600a

Certificates and Compliance

• Approvals: CE, UL (C UL US LISTED), EAC
• PED Category: Article 4, paragraph 3
• RoHS Compliance: EU and China RoHS (with exemptions)
• SCIP Dossier No: b3a34751-5701-488e-98f4-24be945efdc1

Physical Properties

• Gross Weight: 0.562 kg
• Net Weight: 0.515 kg
• Volume: 1.134 liters
• EAN: 5702422028925

Applications

The NRV 22S angleway check valve is used in commercial and industrial refrigeration systems to prevent the backflow of liquid or gas. Thanks to its angled connection design, it saves space and is especially preferred in compact system designs. It offers long-lasting performance with high durability and flow capacity.