Danfoss RTR-N — normal-flow valve with presetting, OEM order code 013G7022. The RTR-N (normal flow) valve body accepts an RA/RTR-series thermostatic sensor or actuator on its clamp connection; the integral presetting device limits the design flow per radiator so a two-pipe system self-balances without a separate balancing valve. Presetting is stepped and read under the head. (RTR-N DN 15, double angle left.) Nominal size DN 15, double angle left pattern, connection Rp 1/2 (inlet) / R 1/2 (outlet) (internal thread), Kvs 0.9 m³/h, Kv presetting range 0.04 - 0.7 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. Application: 2-pipe system. Net weight 0.308 Kilogram. Genuine Danfoss part; technical data quoted verbatim from store.danfoss.com (code 013G7022). OEM P/N 013G7022, EAN 5702425126192. Used in commercial refrigeration, provision-room cooling and reefer plant rooms across HFC, HFO and CO2 (R744) refrigerants.