Danfoss RA-IN with O-ring — thermostatic radiator valve body with presetting, OEM order code 013G1013. The RA-IN with O-ring (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 and read under the head. The RA-IN version carries an O-ring tailpiece for the union connection. Nickel-plated brass body, angle pattern. (RA-IN with O-ring DN 15, angle, dimension standard F.) Nominal size DN 15, connection Rp 1/2 (inlet) / R 1/2 (outlet, external for tailpiece), Kvs 0.9 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 With o-ring. Application: 2-pipe system. Net weight 0.22 Kilogram. Genuine Danfoss part; technical data quoted verbatim from store.danfoss.com (code 013G1013). OEM P/N 013G1013, EAN 5702425113468.