Danfoss RA-N — thermostatic radiator valve body with presetting for two-pipe hydronic heating systems, OEM order code 013G0051. The RA-N (normal flow) valve body accepts an RA-series thermostatic sensor (RA 2000 / living-eco head) or an actuator on its clamp connection; the integral presetting device limits the design flow per radiator so the system self-balances without a separate balancing valve. Presetting is stepped 1…7 plus fully open (N), read on the scale under the head. Nickel-plated brass body, angle pattern. (RA-N DN 10, angle, dimension standard S.) Nominal size DN 10, connection Rp 3/8 (inlet) / R 3/8 (outlet, external for tailpiece), Kvs 0.65 m³/h, max. working pressure 10 bar, test pressure 16 bar, max. differential pressure 0.6 bar, flow temperature up to 120 °C. Finish Nickel plated; tailpiece Metric thread. Application: 2-pipe system. Net weight 0.195 Kilogram. Genuine Danfoss part; technical data quoted verbatim from store.danfoss.com (code 013G0051). OEM P/N 013G0051, EAN 5702420012100.