Smith2013 type helix rotor flow meter (also called double rotor flow meter):It is made up of the shell and a special rotor and transmission components mainly.It is using in the pipeline for continuous or intermittent liquid flow measurement and control instrumentation. It has the advantages of wide range , excellent accuracy, small pressure loss, strong viscosity adaptability, smooth functioning of no pulse, and simple installation,ect

Smith2012 Series PD sliding metal scraper flow meter (Positive Displacement sliding metal scraper flow meter) is made up of scraper、metrology room and double-shell casing pressure which can maintain the factory work machining accuracy .Shell and rotating scraper ensure a great liquid discharge volume.It is widely used in crude oil finished oil and other important trade occasions for inventory control and settlement

Smith2011 Three Rotors (also called fixed metal scraper) flow meter is a generation of new products after smith2012 sliding metal scraper flow meter, and it is made of a shell and a special rotor which contains three synchronous rotation ,.These rotors were installed in three different shapes of rotor inside.The internal component of the flow meter have no direct contact of metal and metal. No contact ,there is no wear and tear; no wear and tear, the gap will not be increased; the gas not increase, the leakage will not increase ;the leakage not increase, accuracy can keep as new forever.