What are the Types of Gear Flow Meters?
Oval gear flow meter:
Oval gear flow meter is a type of flow meter with higher accuracy. It uses mechanical measuring elements to continuously divide the fluid into a single known volume portion. The total flow volume is measured according to the number of times the metering chamber is repeatedly filled and discharged with the volume portion of fluid. Oval gear flowmeters are made of different materials (cast iron, cast steel, 304 stainless steel, 316 stainless steel). It is suitable for chemical, petroleum, pharmaceutical, electric power, metallurgy and food industries.
Spur gear flow meter:
Spur gear flow meter is used for precise continuous or intermittent measurement of the flow rate or instantaneous flow rate of liquid in a pipeline. It is suitable for flow measurement of high viscosity media such as heavy oil, polyvinyl alcohol, resin, etc. It can accurately measure small flow.
Helical rotor flow meter:
The helical rotor flow meter has a pair of helical rotors with special tooth shapes. It has the remarkable characteristics of no pulsation, extremely low noise, high precision, high reliability, large flow, and strong environmental adaptability. It is widely used in petrochemical, metallurgical, electronic, dock and other industries.
The helical rotor flow meter is used in conjunction with QF and GF transmitters. Output electrical pulse signals for remote integration indication.
Three-rotor flow meter (also known as “three-axis scraper flow meter”):
The three-rotor flow meter can continuously measure the flow of liquid in a closed pipeline. The flow meter is mainly composed of two parts: measurement and integration. The flow meter has low mechanical friction and long service life. And it has strong adaptability to viscosity changes. It is widely used in the measurement of transit trade settlement of various crude oil and refined oil. The flow meter can indicate on-site, and can also be connected to explosion-proof pulse or 4~20mA transmitter for remote measurement. It can realize automatic control.
What is PTFE Used for?
1. Manufacturing of Core Components
PTFE is often used as the manufacturing material of the core component of gear flowmeters, gears, because of its excellent corrosion resistance, high and low temperature resistance and low friction coefficient. In gear flow meters, the gears rotate when the fluid passes through. PTFE gears can ensure long-term stable operation in corrosive fluids. It can reduce friction loss and improve measurement accuracy.
2. Improve measurement accuracy
PTFE gear flow meters use precision gear transmission mechanisms. Due to the low friction and high stability of PTFE materials themselves. The gears can more accurately capture the flow information of the fluid during rotation, thereby achieving high-precision flow measurement. This is crucial for industrial applications that require accurate measurement of fluid flow.
3. Expand application areas
PTFE gear flow meters are widely used in the measurement of various corrosive fluids due to their corrosion resistance and high-precision measurement characteristics. Such as corrosive liquids such as acids, alkalis, and salts in the chemical industry, and oil product measurement in the petroleum industry. In addition, in the pharmaceutical industry, accurate metering of liquid medicine is crucial to the quality of medicine. PTFE gear flow meters are also able to provide accurate flow data.
4. Enhance equipment durability
PTFE material not only has excellent corrosion resistance, but also has good weather resistance and high and low temperature resistance. This enables the PTFE gear flow meter to maintain stable operation under various extreme environmental conditions and extend the service life of the equipment. Reduce downtime and maintenance costs caused by equipment failure.
