crude oil flow meter 10 L/min

『crude oil flow meter 10 L/min』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: Accurate Viscous Fluid Measurement for Industrial Applications **Quick Answer:** Oval gear flow meters measure flow by trapping fixed volumes of fluid between rotating oval gears. They deliver ±0.5% accuracy for oils, resins, paints, and other high-viscosity liquids up to 100,000 cP. To get a quote, send us your liquid type, viscosity (cP), flow range (L/min or kg/h), temperature (°C), and pressure (bar). --- ## What Is an Oval Gear Flow Meter? Oval gear flow meters are positive displacement meters. Two oval gears rotate inside a chamber. Fluid enters, pushes the gears, and gets trapped in fixed-volume pockets between the gear teeth and chamber wall. Each rotation displaces a known volume. A magnetic pickup or mechanical counter reads the rotation and converts it to flow rate or total volume. The meters do not need straight pipe runs upstream or downstream. That matters in tight spaces. Most engineers skip this part: the gear design creates a tight seal. Slip is minimal even at low flow rates. That gives the oval gear flow meter an advantage over turbine or electromagnetic meters when liquid viscosity is high. ## Key Specifications That Matter in Practice | Parameter | Typical Range | | --- | --- | | Viscosity | 1 to 100,000 cP | | Accuracy | ±0.5% of reading | | Flow range | 0.5 to 10,000 L/h depending on size | | Pressure rating | PN16 to PN40 (up to 100 bar for some models) | | Temperature | -40°C to +200°C | | Pipe size | DN4 to DN150 | | Output options | 4-20 mA, pulse, HART, Modbus, RS485 | | Materials | SS304, SS316, Hastelloy, PTFE lined | We often see customers in Southeast Asia need SS316 for chemical applications. A paint manufacturer in Thailand uses our DF series oval gear met crude oil flow meter 10 L/min

ers with PTFE lining for aggressive solvents. ## How Oval Gear Flow Meters Compare to Other Technologies **Oval gear vs. Coriolis mass flow meter.** Coriolis meters measure mass flow directly and handle gas-liquid mixtures. They cost 3-5 times more than oval gear meters. For clean viscous liquids, oval gear meters give you the same repeatability at lower cost. **Oval gear vs. electromagnetic flow meter.** Magnetic meters need conductivity above 5 µS/cm. Oils, fuels, and resins are non-conductive. Oval gear meters work fine with these. **Oval gear vs. turbine flow meter.** Turbine meters rely on fluid velocity. Viscosity changes affect them. Oval gear meters maintain accuracy regardless of viscosity shifts. **Oval gear vs. ultrasonic flow meter.** Ultrasonic meters clamp onto the pipe but need clean fluids. Air bubbles or solids cause errors. Oval gear meters are less sensitive to particle content. A customer in Vietnam runs a biodiesel plant. They tried ultrasonic meters but got drift from entrained air. They switched to oval gear meters last year and have seen stable readings since. ## Applications Across Industries **Oil and gas.** Heavy fuel oil, crude oil, diesel, lubricating oils. ATEX Zone 1 certified models are available. **Chemical processing.** Resins, adhesives, paints, solvents, acids, caustics. Use PTFE lined meters for aggressive chemicals. **Food and beverage.** Chocolate, corn syrup, vegetable oil, honey. Use SS316 with tri-clamp connections for CIP. **Marine and maritime.** Bunker fuel, lube oil, hydraulic oil. DN40-DN100 sizes common on ships. **Water and wastewater.** Polymer dosing, flocculant injection. Low flow rates down to 0.5 L/h. ## Installation Tips from Field Experience Most engin

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