Oil Flow Meters

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Oil Flow Meters FS12-SS111C
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Introduction

FluidoSense Oil Flow Meters (Model FS12-SS111C) are precision instruments designed to measure the flow of any oil by gravity or pump flow. Built on the trusted Positive Displacement principle using Oval Gear technology, these meters deliver reliable, accurate measurement across hydraulic, fuel, engine, gear, lube and food-grade oil applications.

Working Principle

As oil enters the single-case measuring chamber, it displaces two oval gears. Each gear rotation corresponds to a fixed unit volume of liquid — the rotation speed is directly proportional to the flow rate. Reed or Hall Effect sensors mounted outside the pressure boundary detect this movement, enabling accurate local or remote display readings.

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Areas of Application

Ideal for all oil-based liquid measurement scenarios across industries

Hydraulic Oil
Fuel Oil
Engine Oil
Gear Oil
Lube Oil
Food Grade Oil

Key Features & Benefits

Engineered specifications and advantages that set this product apart in demanding applications.

Oil Flow Meter Features

Positive displacement measurement — works on Oval Gear principle

High accuracy of ±0.5% of reading

Wide flow range from 50 to 1200 LPH

High pressure rating up to 150 bar

Operating temperature up to 120°C

Stainless Steel construction for durability and corrosion resistance

Remote digital display capability

Suitable for both gravity and pump flow applications

Compact 1/2" BSP female thread connection

Wide power supply range: 5-30 VDC

Model Name/Number FS12-SS111C
Brand FLUIDO
Meter Technology Oval Gear (Positive Displacement)
Material Stainless Steel
Application Media Oil (Hydraulic, Fuel, Engine, Gear, Lube, Food Grade)
Flow Range 50 - 1200 LPH
Accuracy ± 0.5%
Operating Pressure 150 bar
Operating Temperature 120 °C
Line Size 1/2"
Connection End BSP Female Thread
Display Remote
Power Supply 5 - 30 VDC
Country of Origin Made in India

  • Oil & Petroleum: Refineries, depots, terminals, lube oil blending
  • Automotive: Engine oil filling, transmission fluid dosing
  • Hydraulics: Power packs, hydraulic press, heavy machinery
  • Food & Beverage: Edible oil measurement, food-grade applications
  • Manufacturing: Lubrication systems, grease dispensing
  • Transformer Industry: Transformer oil filling and unloading
  • Marine: Engine fuel monitoring, ship lubrication

  • Pulse Output (NPN/PNP)
  • 4-20 mA Analog Signal
  • 0-10 V Voltage Output (optional)
  • RS485 MODBUS RTU (optional)
  • Remote totalizer display with reset function
  • Customizable resolution and pulses per liter

  • Install in horizontal or vertical pipeline with flow direction matching the arrow on the meter body
  • Provide a strainer/filter upstream to prevent particulate contamination
  • Use bypass piping for maintenance without process interruption
  • Avoid air pockets — ensure pipeline is fully primed before operation
  • Allow minimum 5D straight pipe upstream and 3D downstream
  • Mount the remote display in an accessible, vibration-free location
  • Use proper electrical grounding and shielded cables for signal transmission

Frequently Asked Questions

Our Oil Flow Meters work on the Positive Displacement principle using Oval Gear technology. As oil flows through the meter, it rotates two precisely machined oval gears in a sealed measuring chamber. Each rotation displaces a known volume of liquid, which is detected by external Reed or Hall Effect sensors to calculate flow rate and totalised volume.

The FS12-SS111C is suitable for measuring hydraulic oil, fuel oil, engine oil, gear oil, lube oil and food-grade oils. The stainless steel construction ensures compatibility with both petroleum-based and edible oil applications.

This meter delivers an accuracy of ±0.5% across the operating range of 50 to 1200 LPH. The repeatability is excellent due to the positive displacement principle, making it suitable for billing, batching and process control applications.

Yes, the stainless steel construction supports operating pressures up to 150 bar, making it ideal for hydraulic systems, high-pressure pipelines and demanding industrial applications.

Yes, we offer customisation in flow range, output signal (Pulse, 4-20mA, RS485 MODBUS), display options (local/remote), and material specifications. Contact our team with your specific requirements for tailored configurations.

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