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Liquid Controls Positive Displacement Flow Meters and Accessories

Materials of Construction

M-Series: Aluminum, Cast Iron or Stainless Steel

MA-Series: Aluminum

MS-Series: Steel with Aluminum Metering Chamber
                   (optional Stainless Steel)

  • Seal Materials: Buna "N"; Viton®; PTFE

Design Features

Meters provide exceptionally accurate service when using Liquid Controls' unique positive displacement metering principle, even under variable operating conditions (changes in temperature, pressure and viscosity). Provides the energy efficient and functional performance desired from an economical volumetric measuring instrument. Available with traditional mechanical seal or glandless magnetic driven pulse output device. A wide range of accessories are available to meet almost every metering need.


  • High accuracy and repeatability
  • Low maintenance, no metal-to-metal contact in measuring chamber
  • Low pressure loss, a true gravity flow meter
  • Choice of aluminum, cast iron, and stainless steel materials of construction
  • Self-contained operation without electrical power or signal conditioning (for units equipped with mechanical registers, printers or presets); no special piping requirements
  • Electronic output and registration equipment where enhanced accuracy and electronic communications are needed
  • Weights & Measures approval (world-wide) for custody transfer with mechanical or electronic registration systems meeting API standards
  • Electronic accessories designed and approved to Class 1 Div. 2 standards


  • Accuracy / Performance:
    • Electronic Registration Linearity:
      • Capable of ±0.10% over a 5:1 range
      • Capable of ±0.10% over a 10:1 range
      • Capable of ±0.15% over a 40:1 range
          • Mechanical Registration Linearity:
            • Capable of ±0.125% over a 5:1 range
            • Capable of ±0.22% over a 10:1 range
            • Capable of ±0.5% over a 40:1 range
          • Repeatability:
            •  Capable of 0.02% or better at any flow rate over entire range
        • Sizes: 1 1/2" through 6"
        • Flow Rates: 5 GPM through 1,000 GPM
        • End Connections: ANSI Flanged, NPT, BSPT, Slip Weld
        • Pressure Ratings
        • M-Series and MA-Series Cast Case: 150 & 350 PSI non shock working pressure
        • MS-Series Two Case Steel Case: 150/150, 150/275, 300/300, 300/720 PSI; 600/1440 ANSI non-                                                                   shock working pressure


        • Literature

          Application Brochures
          Bill of Materials
          Engineering Documents
          Installation and Operation Manuals
          Product Overviews
          Specification Sheets

          Contact us for more information

          Typical Applications
          Adhesives Agricultural Chemicals Asphalt Animal Feeds Aviation Fuels
          Beverages Concrete Add Mixtures Cosmetics Crude Oil Dairy Products
          Fuel Fuel Oil Industrial Chemical Liquid Fertilizers Liquified Gasses
          Lube Oils Paints and Varnishes Printing Ink Processed Foods Refined Petroleum Products

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