LSZD series dual rotor flowmeter is a new type of volumetric flowmeter which design by our own company. It is high accuracy, stable, no-impulse, low noisy and long time life. It is widely used in petroleum, chemical, metallurgy, electric power, shipping, transportation, terminals, mines, thermal power, food and other departments especially to measure crude oil, high pour point oil, high water cut crude oil, petroleum products, food and chemical solution. The flowmeter can indicate and display reading on site. It can equip with optical pulse converter to output impulse signal to realize remote concentrate control for display instrument and computer.