Positive Displacement Flow Meters

Liquid Controls is a world renowned supplier of reliable, high-accuracy, positive displacement (PD) meters.

Liquid Controls bulk flow meters exclusively engineered TRI rotor design with no metal-to-metal contact within the measuring chamber, making use of a thin liquid capillary film between rotating and stationary components for hydraulic sealing. This unique design result Double Case Flow Meters in minimal wear, sustained accuracy, and low operating costs.

Size: 1 ½”, 2”, 3”, 4”, 6”

• Flow Range: up to 4000LPM
• Linearity: +/-0.1 % over 10: 1 range
• Liquid Controls M and MA Series rotary motion positive displacement meters offer the ultimate in measurement accuracy for custody transfer of petroleum products, aviation fuels, LPG, and a broad range of industrial liquids.
• LC meters incorporate a unique design, presenting minimal intrusion in a flowing stream of liquid, as well as minimal pressure drop through the meter.
• The unique cast-case construction of the M and MA Series meters results in low-pressure drop for most liquids, delivering superior performance and minimal demand on system pumps.
• The exclusive LC metering element eliminates inaccuracies due to clearance changes, minimizes loads on bearings, eliminates axial thrust and performs with equal accuracy for forward or reverse flow.
• M and MA Series meters’ compact design and multiple inlet/ outlet flange configurations provide unmatched mounting versatility.

• Flow Range: up to 4000LPM
• Linearity: +/-0.1 % over 10: 1 range Available in high pressure rating
• MS Series meters are ideal for bulk measurement of product during loading and unloading of tanks, transports, railcars, ships, barges, and more.
• The MS Series meters are housed in a spherical steel case for higher system pressure applications up to 1,440 PSI. MS Series spherical case meters provide the ruggedness, accuracy, and selection of inlet/outlet configurations to handle nearly any bulk metering requirement.
• Meter accessories include bulk air/vapor eliminators, strainers, valves, and mechanical or electronic registers.
• Skid systems are designed to accommodate all necessary ancillary equipment including strainers, air eliminators, valves, and a selection of mechanical or electronic registers and load computers.
• Systems come fully piped and ready for installation and field calibration.
• Prover systems are also available built to customer specifications.