Danfoss NRVA 65 Check Valve 65 mm (2 1/2 in) Butt Weld

Danfoss NRVA 65 check valve (non-return valve) for industrial refrigeration, OEM P/N 020-2006. Prevents reverse flow of refrigerant in liquid, suction and hot-gas lines of ammonia (R717), HCFC and HFC plant. Butt-weld connection 65 mm (2 1/2 in) to EN 10220 (ANSI B 36.10 pipe schedules). Fitted with a damping piston, so it is suited to pulsating lines such as the compressor discharge line, and a PTFE valve seat for tight seating with minimum closing force. No orientation limitation. Max working pressure 40 bar (580 psig); media temperature -50 °C to 140 °C. NRVA = standard spring; a stronger spring is available for special duties (see ordering table). Verify refrigerant compatibility against the datasheet.

Brand

Danfoss Part number: 020-2006 Model: NRVA 65 check valve (non-return valve), industrial refrigeration Category: HVAC & Refrigeration — Check Valves Direction: Straightway Connection: Butt weld, EN 10220 (ANSI B 36.10), 65 mm (2 1/2 in), inlet and outlet Max working pressure (PS/MWP): 40 bar (580 psig) Media temperature range: -50 °C to 140 °C (-58 °F to 284 °F) Kv: 75 m³/h (Cv 87 gal/min) Flow: single flow, with built-in damping piston Net weight: 13.426 kg (gross 13.854 kg) Packing: Single pack EAN: 5702422034117 Materials: Valve housing steel (A352 LCC / P285QH); valve seat PTFE; spring stainless steel (A2-70); damping piston stainless steel Approvals: CE (PED Cat. II), EU RoHS Refrigerants: HCFC, HFC and R717 (Ammonia) — see datasheet for the full approved list Type: NRVA 65 Product group: Check valves Approval: CE CE mark: Yes China RoHS compliance: Yes Connection Code: (2001:D29:65) Connection size [in]: 2 1/2 in Connection size [mm]: 65 mm Connection standard: EN 10220 Connection type: Butt weld Cv value [gal/min]: 87 gal/min EU RoHS compliance: Yes Fluid Group: 1 Kv value [m³/h]: 75 m³/h Max. Working Pressure [bar]: 40 bar Max. Working Pressure [psig]: 580 psig PED category: II REACH Candidate List substances: No Temperature range [°C] [max]: 140 °C Temperature range [°C] [min]: -50 °C Temperature range [°F] [max]: 284 °F Temperature range [°F] [min]: -58 °F

Material

Valve housing steel (A352 LCC / P285QH); valve seat PTFE; spring stainless steel (A2-70); damping piston stainless steel

Pressure Rating

40 bar (580 psig) max working pressure

Temperature Range

-50 °C to 140 °C

Classification / Approval

CE (PED Cat. II), EU RoHS

HS Code

8481.30