Accessories for oval - gear flowmeter

​​1. Introduction​​

An oval gear flowmeter is a positive displacement flowmeter widely used for measuring the volumetric flow of liquids with high accuracy. Its key components work together to ensure precise measurement and reliable operation. Below are the main accessories and their functions:

​​1.1 Oval Gears​​

• The oval gears are the core components of the flowmeter. They consist of two precisely machined elliptical gears that rotate in opposite directions within the meter’s housing. The meshing action of these gears traps and measures a fixed volume of liquid per rotation, ensuring high measurement accuracy.

​​1.2 Counter (Register)​​

• The counter records the number of rotations of the oval gears, converting them into a readable flow measurement. Mechanical counters use gear-driven dials, while electronic counters employ sensors to provide digital displays, data logging, and remote transmission capabilities.

​​1.3 Housing (Meter Body)​​

• The housing is typically made of cast iron, stainless steel, or other durable materials. It protects internal components, withstands fluid pressure, and ensures smooth fluid passage through the gears. The design minimizes turbulence and leakage, maintaining measurement accuracy.

​​1.4 Seals (Gaskets & O-Rings)​​

• Seals prevent fluid leakage at critical points, such as between the gears and housing or along the shaft. Common sealing materials include rubber O-rings for general applications and mechanical seals for high-pressure or corrosive fluids.

​​1.5 Drive Mechanism (Transmission System)​​

• The drive mechanism transfers the rotation of the oval gears to the counter. It consists of gears, shafts, and couplings designed to minimize friction and ensure accurate signal transmission.

​​2. Applications​​

Oval gear flowmeters and their accessories are widely used in industries requiring precise liquid flow measurement:

​​2.1 Oil & Petrochemical Industry​​

• Measures crude oil, refined fuels (gasoline, diesel), lubricants, and chemical solvents. Ensures accurate blending, custody transfer, and process control in refineries and chemical plants.

​​2.2 Food & Beverage Industry​​

• Used for metering liquids like milk, juice, edible oils, and syrups. Ensures consistent product quality and portion control in filling and mixing processes.

​​2.3 Pharmaceutical Industry​​

• Measures active pharmaceutical ingredients (APIs), solvents, and liquid formulations. Complies with GMP standards for precise dosing and batch processing.

​​2.4 Water & Wastewater Treatment​​

• Monitors raw water, treated water, and wastewater flow. Helps optimize chemical dosing, filtration, and discharge processes in treatment plants.

​​Conclusion​​

Oval gear flowmeter accessories play a crucial role in ensuring accurate and reliable liquid flow measurement across various industries. Their robust design and precision make them ideal for applications requiring high repeatability and minimal maintenance.