Danfoss RTR-G — high-flow valve for one-pipe systems (no presetting), OEM order code 013G7027. 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 (5.5 m³/h) suits the larger flow of one-pipe risers. No presetting. (RTR-G DN 25, angle, dimension standard D.) Nominal size DN 25, angle pattern, connection Rp 1 (inlet) / R 1 (outlet) (internal thread), Kvs 5.5 m³/h, max. working pressure 16 bar, test pressure 25 bar, max. differential pressure 0.16 bar, flow temperature up to 120 °C. Finish Nickel plated. Application: 1-pipe system. Net weight 0.591 Kilogram. Genuine Danfoss part; technical data quoted verbatim from store.danfoss.com (code 013G7027). OEM P/N 013G7027, EAN 5702425126253. HS 8481.80.