
Danfoss NRV 6 check valve — 6 mm (1/4 in) flare, straightway, 46 bar, code
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Product Description
Danfoss NRV 6 check (non-return) valve, code 020-1240 — a spring-loaded straightway check valve from the Danfoss NRV range for commercial A/C and refrigeration, preventing reverse refrigerant flow. This SKU has 6 mm (1/4 in) flare connections (internal-thread flare inlet, external-thread flare outlet). minimum pressure drop 0.07 bar; maximum working pressure 46 bar (667 psig); media temperature range -50 to 140 C (-58 to 285 F). Suitable for HCFC/HFC/HFO refrigerants. UL listed (C UL US) and EAC. Price on quote.
Technical Specifications
- Type
- Check valve, NRV 6 Code number: 020-1240 Series: Danfoss NRV spring-loaded check (non-return) valve Function: Prevents reverse flow Direction: Straightway Connection: 6 mm (1/4 in) flare, inlet and outlet Connection type: Flare Min. pressure drop: 0.07 bar (1.0 psi) Max. working pressure: 46 bar (667 psig) Media temperature range: -50 to 140 C (-58 to 285 F) Applicable refrigerants: R1233zd(E), R1234yf, R1234ze(E), R134a, R22, R32, R404A, R407A, R407C, R407F, R407H, R410A, R448A, R449A, R449B, R450A, R452A, R452B, R454A, R454B, R454C, R455A, R507A, R513A, R515B, R516A Conformity assessment: PED category Art. 4, par. 3 (sound engineering practice) Approvals: UL (C UL US Listed), EAC Net weight: 0.08 kg Gross weight: 0.086 kg EAN: 5702428246408 Product group: Check valves Approval: C UL US LISTED Body material: Brass China RoHS compliance: Yes with exemptions Connection material: Brass Connection notes: Without flare nut Cv value [gal/min]: 0.65 gal/min Design: Piston EU RoHS compliance: Yes with exemptions EU RoHS exemption clause: 6(c) Flow direction: Single-flow Flow direction indicator: On product label Fluid Group: 1 Inlet connection type: Flare Inlet Internal/External: Internal Inlet size [in]: 1/4 in Inlet size [mm]: 6 mm Kv value [m³/h]: 0.56 m³/h Lubricants compatibility: Oilfree applications Max. Working Pressure [bar]: 46 bar Max. Working Pressure [psig]: 667 psig Min. Pressure drop [bar]: 0.07 bar Min. Pressure drop [psi]: 1 psi Oil free refrigerants: R1234ze(E) Outlet connection type: Flare Outlet Internal/External: External Outlet size [in]: 1/4 in Outlet size [mm]: 6 mm PED category: Art. 4, par. 3 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) Refrigerants: R1233zd(E) 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
- Standard
- NRV 6
- Size / Series
- 6 (1/4 in)
- Material
- Connection tube copper; solder ring brass; sealing disk brass; piston stainless steel; spring brass; valve body stainless steel; guide brass; PTFE/glass-fibre washer
- Pressure Rating
- 46 bar (667 psig) max working pressure
- Temperature Range
- -50 to 140 C (-58 to 285 F)
- HS Code
- 8481.30
Compatibility & Fitment
Flare-connection NRV 6 (020- series), distinct from the ODF-solder NRV 6s (020B series). Select an NRV by size, connection type (flare vs solder) and body direction.
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 020-1240?
- 020-1240 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 020-1240.
- What is the HS code for 020-1240?
- The customs tariff (HS) code for 020-1240 is 8481.30.
- Who manufactures 020-1240?
- 020-1240 is a Danfoss product in the HVAC & Refrigeration range.
- Is a datasheet available for 020-1240?
- Yes — the 020-1240 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 020-1240?
- The minimum order quantity is 1.
- Is 020-1240 available?
- Yes — 020-1240 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).
