Danfoss NRVA 15-20 Check Valve Body (Flangeless)

Danfoss NRVA 15-20 check-valve body, OEM P/N 020-2020 — the flangeless valve housing (without flanges) of the NRVA industrial refrigeration check valve. Ordered separately from the weld/socket/solder/FPT flange set so the same body can be matched to any connection standard. Contains the damping piston and PTFE seat; prevents reverse refrigerant flow in ammonia (R717), HCFC and HFC plant. Straightway pattern, no orientation limitation. Max working pressure 40 bar (580 psig); media temperature -50 °C to 140 °C. Kv 5 m³/h. Pair with the matching NRVA flange kit for the required connection.

Brand

Danfoss

Part number

020-2020

Model

NRVA 15-20 check valve body (flangeless housing), industrial refrigeration

Category

HVAC & Refrigeration — Check Valves

Type

Valve body only — flanges ordered separately

Direction

Straightway

Connection

Without flange (body accepts butt-weld / socket-weld / solder / FPT flange sets)

Max working pressure (PS/MWP)

40 bar (580 psig)

Media temperature range

-50 °C to 140 °C (-58 °F to 284 °F)

Kv

5 m³/h (Cv 6 gal/min)

Flow

single flow, with built-in damping piston

Net weight

0.211 kg (gross 0.264 kg)

Packing

Multi pack (12 pc)

EAN

5702422044123

Materials

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

Approvals

CE, PED (Art. 4 par. 3), EU RoHS

Refrigerants

HCFC, HFC and R717 (Ammonia) — see datasheet for the full approved list

Product group

Check valves

Approval

EAC

CE mark

Yes

China RoHS compliance

Out of scope

Comments

WITHOUT FLANGE

Cv value [gal/min]

6 gal/min

EU RoHS compliance

Out of scope

Fluid Group

1

Further information

Without flange

Kv value [m³/h]

5 m³/h

Max. Working Pressure [bar]

40 bar

Max. Working Pressure [psig]

580 psig

PED category

Art. 4, par. 3

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]

284 °F

Temperature range [°F] [min]

-58 °F

Used for product

NRVA 15-20

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 (Art. 4 par. 3), EU RoHS

HS Code

8481.90