Danfoss NRV 12 Check Valve 1/2 in Face Seal Straightway

Danfoss NRV 12 piston-type check valve (non-return valve), OEM P/N 020-1118. Controls unidirectional refrigerant flow to prevent back-flow in commercial refrigeration and air-conditioning systems. The NRV opens at a low minimum pressure differential (0.05 bar / 0.72 psi). Straightway pattern, Face seal (metal gasket) connection 1/2 in face seal, 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 2.37 m³/h (Cv 2.74 gal/min). Face-seal (metal-gasket) connections are approved for A1 and A2L refrigerants only. UL (C UL US Listed) and EAC. Refrigerant compatibility per the NRV/NRVH datasheet — verify against your system charge. Price on quote.

Brand

Danfoss Part number: 020-1118 Model: NRV 12 piston-type check valve (non-return valve) Category: HVAC & Refrigeration — Check Valves Direction: Straightway Connection: Face seal (metal gasket), 1/2 in face seal, 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: 0.05 bar (0.72 psi) Kv: 2.37 m³/h (Cv 2.74 gal/min) Flow: single flow, with built-in damping piston Net weight: 0.12 kg (gross 0.121 kg) EAN: 5702428246637 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, EAC Refrigerants: R134a, R22/R407C, R32, R404A/R507A, R407A, R407F, R407H, R410A, R448A, R449A, R449B, R450A, R452A, R452B, R454A, R454B, R454C, R455A, R513A, R515B, R516A, R1233zd(E), R1234ze(E), R1234yf Type: NRV 12 Product group: Check valves Approval: C UL US LISTED Body material: Brass China RoHS compliance: Yes with exemptions Connection material: Brass Cv value [gal/min]: 2.37 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: Face Seal Inlet Internal/External: External Inlet size [in]: 1/2 in Kv value [m³/h]: 2.05 m³/h Lubricants compatibility: Oilfree applications Max. Working Pressure [bar]: 46 bar Max. Working Pressure [psig]: 667 psig Min. Pressure drop [bar]: 0.05 bar Min. Pressure drop [psi]: 0.7 psi Oil free refrigerants: R1234ze(E) Outlet connection type: Face Seal Outlet Internal/External: External Outlet size [in]: 1/2 in 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) 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

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), EAC

HS Code

8481.30