Compact and low-cost flow meter with metal block and needle valve; Excellent flow adjustment allows smooth flow rate adjustment; For use with built-in equipment; For gas purge measurements; Accuracy: FS±10%; Connection size: Rc1/8; Maximum flow rate (ml/min): 50; Effective scale: 10:1; Pressure tolerance: 0.5 MPa; Heat resistance (60 °C); Body: Brass. Kin: Nitrile Rubber (NBR)