Danfoss NRV 35S Check Valve 1 5/8 in ODF Angleway
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Product Description
Danfoss NRV 35s piston-type check valve (non-return valve), OEM P/N 020-1061. Controls unidirectional refrigerant flow to prevent back-flow in commercial refrigeration and air-conditioning systems. The NRV opens at a low minimum pressure differential (0.04 bar / 0.58 psi). Angleway pattern, Solder, ODF connection 1 5/8 in, inlet and outlet. Built-in damping piston. Max working pressure 46 bar (667 psig); media temperature -50 to 140 °C (-58 to 285 °F). Kv per the NRV/NRVH datasheet. UL (C UL US Listed) and EAC. Refrigerant compatibility per the NRV/NRVH datasheet — verify against your system charge. Price on quote.
Technical Specifications
- Brand
- Danfoss Part number: 020-1061 Model: NRV 35s piston-type check valve (non-return valve) Category: HVAC & Refrigeration — Check Valves Direction: Angleway Connection: Solder, ODF, 1 5/8 in, inlet and outlet Max working pressure (PS/MWP): 46 bar (667 psig) Media temperature range: -50 to 140 °C (-58 to 285 °F) Min. opening pressure differential: 0.04 bar (0.58 psi) Kv: per NRV/NRVH datasheet Flow: single flow, with built-in damping piston Net weight: 1.306 kg (gross 1.428 kg) EAN: 5702422115236 Materials: Connection tube copper; solder ring brass; sealing disk brass; piston stainless steel; spring brass; valve body brass; guide brass; washer PTFE with glass fibre Approvals: UL, CE, EAC, PED Refrigerants: R134a, R22/R407C, R290, R32, R404A/R507A, R407A, R407F, R407H, R410A, R448A, R449A, R449B, R450A, R452A, R452B, R454A, R454B, R454C, R455A, R513A, R515B, R516A, R600, R600a, R1233zd(E), R1234ze(E), R1234yf, R1270 Type: NRV 35s Product group: Check valves Approval: C UL US LISTED Body material: Brass CE mark: Yes China RoHS compliance: Yes with exemptions Connection Code: (3002:X:41) Connection material: Copper Connection notes: Oversize Cv value [gal/min]: 33.52 gal/min Design: Piston EU RoHS compliance: Yes with exemptions EU RoHS exemption clause: 6(c) Flow direction: Single-flow Flow direction indicator: Embossed 1-way arrow Fluid Group: 2 Inlet connection type: Solder, ODF Inlet size [in]: 1 5/8 in Kv value [m³/h]: 29 m³/h Lubricants compatibility: Oilfree applications Max. Working Pressure [bar]: 46 bar Max. Working Pressure [psig]: 667 psig Min. Pressure drop [bar]: 0.04 bar Min. Pressure drop [psi]: 0.6 psi Oil free refrigerants: R1234ze(E) Outlet connection type: Solder, ODF Outlet size [in]: 1 5/8 in PED category: I Rated cap cond, Hot gas [IMP]: tcond=86 °F Rated cap cond, Hot gas [SI]: tcond=30 °C Rated cap cond, Liq. cap [IMP]: tcond=86 °F Rated cap cond, Liq. cap [SI]: tcond=30 °C REACH Candidate List substances: Lead (CAS no. 7439-92-1) Temperature range [°C] [max]: 140 °C Temperature range [°C] [min]: -50 °C Temperature range [°F] [max]: 285 °F Temperature range [°F] [min]: -58 °F UL approval file name: REFRIGERANT VALVE 53R0 UL approved refrigerants: R1233zd(E) UL mark: Yes
Standards & Compliance
- Material
- Connection tube copper; solder ring brass; sealing disk brass; piston stainless steel; spring brass; valve body brass; guide brass; washer PTFE with glass fibre
- Pressure Rating
- 46 bar (667 psig) max working pressure
- Temperature Range
- -50 to 140 °C
- Classification / Approval
- UL (C UL US Listed), CE, EAC, PED (Art. 4 par. 3)
- HS Code
- 8481.30
Compatibility & Fitment
Install in the direction of the flow arrow. The differential pressure across the valve must exceed the minimum opening pressure differential (0.04 bar), including at the lowest capacity of capacity-regulated compressors. Braze the ODF solder ends with care to protect the internal seals. Verify code, connection size and spring variant (NRV vs NRVH) before ordering.
Product Documentation
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Technical guides
- Cross-Referencing Danfoss Refrigeration Components by IMPA and OEM Code
- Danfoss Product Code Decoder — 003Z, 013G, 017B, 023U, 027L, 032F, 060G, 060H, 065B, 065Z, 068Z, 084H, 132F, 148B Series (Complete Reference)
- Danfoss Maneurop MTZ Reciprocating Compressors — Model Range, Voltage Codes and Replacement Guide
Catalogue entry last verified: 2026-08-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 020-1061?
- 020-1061 can be ordered from cballast.com as a Danfoss catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Danfoss product?
- The manufacturer part number is 020-1061.
- What is the HS code for 020-1061?
- The customs tariff (HS) code for 020-1061 is 8481.30.
- Who manufactures 020-1061?
- 020-1061 is a Danfoss product in the HVAC & Refrigeration range.
- Is a datasheet available for 020-1061?
- Yes — the 020-1061 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 020-1061?
- The minimum order quantity is 1.
- Is 020-1061 available?
- Yes — 020-1061 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).