Helical wheel flowmeter is meter with high repeatability and accuracy, flow measurement of various types of liquid industrial medium used. Its unique structure, not only to ensure the metering flowmeter performance, but also improve the ability to adapt to fluid. For wide viscosity and solids content of the smaller media, such as crude oil, oily wastewater, diesel, gasoline, light oil, high-precision flow measurement. Main features: simple structure, a single rotating parts (screw rotation child); long life, wear-resistant bearing materials and unique design, to ensure that the bearing will not be a hard object damage; low pressure drop; unique structural design ensures fluid flow in each case; linearity by viscosity changes affect small; the influence of pressure fluctuations do not affect the measurement accuracy of the meter; excellent mechanical properties of high temperature high pressure; stainless steel metering member, to avoid high water content or other corrosive When the meter component corrosion; lightweight structure, easy installation and maintenance. Working principle and structure: helix flowmeter turbine flowmeter sampling with a similar structure, but sensing the rotor section flow is completely different. Helical wheel flow meter rotor double helix structure of the blade, the flow rate of the fluid speed with its work under the (volume) is proportional. Special structure spiral impeller, so that in flow measurement of fluid viscosity changes with low sensitivity to changes in fluid density is almost insensitive. In addition, changes in fluid flow meter status (such as a whirlpool, etc.) also has a strong immunity. In addition to these features ensure high-precision measurement and wide adaptability fluid, but also can reduce the speed meter unique long straight pipe requirements. Helical impeller is mounted on the magnetic member, the coil being mounted on the rotating measuring wheel spiral detecting section outside the flow tube, with the rotor speed and generating an electrical pulse proportional. The electrical pulse frequency proportional to the flow rate, the signals processed by converters, can be displayed and traffic flow proportional with various industry standard signal output.