Danfoss RTR-G — high-flow valve for one-pipe systems (no presetting), OEM order code 013G7023. The RTR-G is a high-capacity thermostatic radiator valve body for one-pipe (single-pipe) heating systems, where a share of the circuit flow is diverted through the radiator. It carries an RA/RTR-series thermostatic sensor or actuator on the valve clamp connection; the high Kvs (4.3 m³/h) suits the larger flow of one-pipe risers. No presetting. (RTR-G DN 15, angle, dimension standard D.) Nominal size DN 15, angle pattern, connection Rp 1/2 (inlet) / R 1/2 (outlet) (internal thread), Kvs 4.3 m³/h, max. working pressure 16 bar, test pressure 25 bar, max. differential pressure 0.2 bar, flow temperature up to 120 °C. Finish Nickel plated. Application: 1-pipe system. Net weight 0.268 Kilogram. Genuine Danfoss part; technical data quoted verbatim from store.danfoss.com (code 013G7023). OEM P/N 013G7023, EAN 5702425126215. HS 8481.80.