Danfoss RLV-D — manual lockshield radiator valve for two-pipe hydronic heating systems, OEM order code 003L0203. The RLV-D is a return-side lockshield valve supplied with compression/union fittings for direct connection to the system pipe, combining individual shut-off with a drain-off facility for maintenance. Regulation and isolation are set with a hex socket under a cover cap. RLV-D DN 15, angle pattern. Body brass, finish Nickel plated. Connection to system 15 mm, connection to radiator Rp 1/2 (External Thread). Max. working pressure 10 bar, test pressure 16 bar, flow temperature up to 120 °C. Genuine Danfoss part; technical data quoted verbatim from store.danfoss.com (code 003L0203). OEM P/N 003L0203, EAN 5013567408085. HS 8481.80.