The LZB series glass rotor flowmeter is a direct reading instantaneous flow meter. Its structure, installation, reading, and maintenance are all very simple and convenient, and it has been widely used. At present, glass rotor flow meters are widely used in industries and scientific research departments such as petroleum, chemical fiber, medicine, food, dyes, fertilizers, and papermaking to measure single-phase, non pulsating fluid (gas, liquid) flow rates. LZB and LZBF types, LZBD glass rotor flow meters come in nine specifications with diameters ranging from 4mm to 100mm. 4-10mm is for hose connection, 15-100mm is for flange connection (JB78-59), LZS type is for engineering plastic ABS, with 4 specifications of caliber and ribbed connection method.