Danfoss 020B1012 NRV 12S 1/2" ODF Straight Solder Check Valve – 2.42 m³/h Kv, 49 bar

Danfoss NRV 12S (020B1012) is a straight type check valve with a 1/2 inch solder (ODF) connection. Ideal for compact systems, this valve withstands a maximum working pressure of 49 bar. With its piston type internal mechanism, it provides safe, leak-tight and one-way flow. It offers long-lasting performance in small-volume systems requiring high reliability.

Technical Specifications

• Product Code: 020B1012
• Model: NRV 12S
• Connection Type: Solder (ODF)
• Connection Size: 1/2 inch
• Design: Straightway
• Flow Direction: One-way
• Kv Value: 2.42 m³/h
• Cv Value: 2.8 gal/min
• Min. Pressure Drop: 0.05 bar (0.7 psi)
• Max. Working Pressure: 49 bar (710 psi)
• Operating Temperature: -50 °C to +155 °C
• Body Material: Brass
• Connection Material: Copper
• 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, LLC CDC EURO-TYSK
• PED Category: Article 4, Paragraph 3
• RoHS Compliance: EU & China RoHS (with exemptions)
• SCIP Dossier No: 518b3853-2efc-40fc-8f8b-d06930d032bb

Physical Properties

• Gross Weight: 0.098 kg
• Net Weight: 0.087 kg
• Volume: 0.152 liters
• EAN: 5702428291231

Applications

The NRV 12S (020B1012) is used to prevent liquid and gas backflow in low-capacity commercial refrigeration systems. Thanks to its compact size and straight connection design, it allows easy installation in tight spaces. Thanks to its piston mechanism, it offers a long-lasting, safe and leak-tight solution.