gasoline flow meter 100 L/h

『gasoline flow meter 100 L/h』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)

# Oval Gear Flow Meter: Precision Volume Measurement for High Viscosity Liquids **Quick Answer:** An oval gear flow meter measures liquid volume by counting rotations of two interlocking oval gears. It delivers ±0.5% accuracy for liquids up to 100,000 cP. This meter works best for clean, viscous fluids like heavy fuel oil, chocolate, resins, and lubricants. For dirty liquids with particles, use a magnetic or Coriolis meter instead. --- ## How an Oval Gear Flow Meter Works Two oval gears rotate inside a precision chamber. Liquid enters, pushes the gears, and exits. Each full rotation traps a fixed volume of liquid between the gears and the chamber wall. A magnetic sensor or reed switch counts the rotations. The electronics convert rotation count to flow rate and total volume. The gear design does one thing well. It eliminates slip (internal leakage) in high viscosity fluids. Slip is negligible above 100 cP. Below 10 cP, accuracy drops because liquid leaks past the gear tips. For low viscosity liquids like water or solvents, choose a Coriolis or turbine meter. Most engineers skip this part. The meter works without external power. The gears rotate from flow alone. A battery powered totalizer displays cumulative volume. This is useful for remote tanker loading sites in Southeast Asia where grid power is unreliable. --- ## Key Technical Specifications | Parameter | Typical Range | |-----------|---------------| | Viscosity range | 1 to 100,000 cP | | Accuracy | ±0.5% of reading (above 100 cP) | | Repeatability | ±0.05% | | Max pressure | 40 bar (standard), 100 bar (option) | | Temperature | -30°C to +150°C (PT100 RTD option for temperature compensation) | | Pipe size | DN15 to DN100 | | Output signals | 4-20 mA HART, gasoline flow meter 100 L/h

pulse, Modbus RTU | | Materials | 316L stainless steel, cast iron, aluminum | We have seen many customer sites where operators specified PTFE lined meters for aggressive chemicals. For example, a paint manufacturer in Malaysia uses our cast iron oval gear meter for solvent based resins. The cast iron body handles the viscosity, and the PTFE rotor coating resists chemical attack. --- ## Advantages Over Other Flow Meter Technologies ### Handling High Viscosity Coriolis meters need high pressure drop at low flow for viscous fluids. Ultrasonic meters fail above 1,000 cP. Electromagnetic meters only work with conductive liquids. Oval gear meters handle viscous flow naturally. A sugar refinery in Thailand meters molasses at 80,000 cP with our aluminum model. No preheating required. ### Accuracy at Low Flow At 0.5 L/min for a DN15 meter, oval gear meters maintain ±0.5% accuracy. Turbine meters lose calibration below 10% of full scale. Coriolis meters drift at very low flows due to zero point instability. For batching small volumes of additives in a food plant, oval gear is the right choice. ### No Straight Pipe Requirements Most flow meters need 10 diameters of straight pipe upstream and 5 downstream. Oval gear meters need zero straight run. They mount into tight pipework on skids and mobile tankers. A customer in Chile installed our meter directly after a 90 degree elbow on their edible oil loading line. Calibration verified ±0.3% accuracy. ### Low Pressure Drop The open gear design creates minimal resistance. Pressure drop is typically 0.2 bar at maximum flow for a DN50 meter. For pumping viscous liquids through long pipelines, this saves energy. A refinery in the Middle East reduced pump energy 15% after replacing

『SILVER Official Website SERVICE』