Danfoss NRV 6 Check Valve 1/4 in Flare Straightway

Danfoss NRV 6 piston-type check valve (non-return valve), OEM P/N 020-1040. Controls unidirectional refrigerant flow to prevent back-flow in commercial refrigeration and air-conditioning systems. Straightway pattern, Flare connection 1/4 in (6 mm), inlet and outlet, supplied without flare nut. Piston design, single flow. Max working pressure 46 bar (667 psig); media temperature -50 °C to 140 °C. Suitable for oil-free applications. Refrigerant compatibility is listed on the datasheet — verify against your system charge.

Brand

Danfoss

Part number

020-1040

Model

NRV 6 piston-type check valve (non-return valve), flare-connection variant

Category

HVAC & Refrigeration — Check Valves

Direction

Straightway

Connection

Flare, 1/4 in (6 mm), inlet and outlet (supplied without flare nut)

Max working pressure (PS/MWP)

46 bar (667 psig)

Media temperature range

-50 °C to 140 °C (-58 °F to 285 °F)

Kv

0.56 m³/h (Cv 0.65 gal/min)

Min. pressure drop

0.07 bar (1 psi)

Flow

single flow, piston design

Net weight

0.05 kg

EAN

5702422006510

Materials

Valve body brass; connection brass

Approvals

UL (C UL US Listed), EAC, PED (Art. 4 par. 3)

Refrigerant compatibility per the NRV/NRVH datasheet; suitable for oil-free applications

Material

Valve body brass; connection brass — full material breakdown in the NRV/NRVH datasheet

Pressure Rating

46 bar (667 psig) max working pressure

Temperature Range

-50 °C to 140 °C

Classification / Approval

UL (C UL US Listed), EAC, PED (Art. 4 par. 3)

HS Code

8481.30