Danfoss NRVH 16S Check Valve 18 mm ODF Straightway

Danfoss NRVH 16s piston-type check valve (non-return valve), OEM P/N 020B1065. Controls unidirectional refrigerant flow to prevent back-flow in commercial refrigeration and air-conditioning systems. NRVH is the stronger-spring variant of the NRV line, with a higher minimum opening pressure differential (0.2 bar / 2.9 psi) than the standard NRV (about 0.02–0.04 bar); it is intended for systems with parallel-connected (power-pack) compressors where discharge-line pulsation is higher. Straightway pattern, Solder, ODF connection 18 mm, inlet and outlet. Built-in damping piston. Max working pressure 49 bar (710 psig); media temperature -50 to 155 °C (-58 to 311 °F). Kv 4 m³/h (Cv 4.62 gal/min). 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: 020B1065 Model: NRVH 16s piston-type check valve (non-return valve) Category: HVAC & Refrigeration — Check Valves Direction: Straightway Connection: Solder, ODF, 18 mm, inlet and outlet Max working pressure (PS/MWP): 49 bar (710 psig) Media temperature range: -50 to 155 °C (-58 to 311 °F) Min. opening pressure differential: 0.2 bar (2.9 psi) Kv: 4 m³/h (Cv 4.62 gal/min) Flow: single flow, with built-in damping piston Net weight: 0.164 kg (gross 0.182 kg) EAN: 5702428572101 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, R290, R32, R404A/R507, 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: NRVH 16s Product group: Check valves Approval: C UL US LISTED Body material: Brass China RoHS compliance: Yes with exemptions Connection Code: (3001:X:18) Connection material: Copper Connection notes: Oversize Cv value [gal/min]: 4.67 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 Ignition source assessment: Yes Inlet connection type: Solder, ODF Inlet size [mm]: 18 mm Kv value [m³/h]: 4.04 m³/h Lubricants compatibility: Oilfree applications Max. Working Pressure [bar]: 49 bar Max. Working Pressure [psig]: 710 psig Min. Pressure drop [bar]: 0.3 bar Min. Pressure drop [psi]: 4.3 psi MinODP [bar]: 0.2 bar MinODP [psi]: 2.9 psi Oil free refrigerants: R1234ze(E) Outlet connection type: Solder, ODF Outlet size [mm]: 18 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) Temperature range [°C] [max]: 155 °C Temperature range [°C] [min]: -50 °C Temperature range [°F] [max]: 311 °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

49 bar (710 psig) max working pressure

Temperature Range

-50 to 155 °C

Classification / Approval

UL (C UL US Listed), EAC

HS Code

8481.30