Danfoss RA-N — thermostatic radiator valve body with presetting for two-pipe hydronic heating systems, OEM order code 013G3322. 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, straight pattern. (RA-N 10/15, dimension standard S.) Connection Rp 3/8 (inlet) / R 1/2 (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. Application: 2-pipe system. Net weight 0.21 Kilogram. Genuine Danfoss part; technical data quoted verbatim from store.danfoss.com (code 013G3322). OEM P/N 013G3322, EAN 5702420034119. HS 8481.80.