Roots Flowmeter

Introduction: F series Roots flowmeter derived from the technology trade between TOKICO Co., Ltd. Japan and Endurance Co. in the end of 1990s, which is advanced technique for China in that times. Roots flowmeter is a highly accurate metrological instrument to continuously or instantaneously measure the flow rate of fluid in pipeline, which mainly composed of measuring unit, a pair of Roots rotor, transmission components and registry unit. It is of high accuracy, large flow rate, steady operation, none pulsating flow, low noise, good reliability and is able to remote monitor with 4-20mA signal. Main technical parameters: Nominal diameter (mm): DN15 300 Accuracy: ±0.2%,±0.3%,±0.5% Flow range (m3/h): 0.5 1200 Medium temperature (oC): ≤200 Environmental temperature (oC): -30 50 Nominal pressure (Mpa): 1.0, 1.6, 2.5, 4.0, 6.3 Medium: low or midst viscosity petroleum or chemical products Function of registry: locally display totalized and instantaneous flow rate, reset pointer and totalizer. Output: pulse, 4 20mA analogue signal Flow conversion coefficient: 0.01L/P, 0.1L/P, 1L/P Explosion proof: EX dII BT4 Safety grade: IP65 Connection: flange GB/T9113.1-2000 or customized according to customers’ option Technical standard: JB/T9242-1999 positive displacement flowmeter Market service: Flow metrology and custody transfer in oil, petrochemical, electric power, traffic, food, pharmaceutical and hygiene, national defense and military industry. Application: Oil depot, fuel station, oil vessel, petrochemical store, harbor store, refinery process, chemical industry devices, metrological calibration.