M Series

Liquid Controls M Series rotary motion positive displacement (PD) meters offer the best in measurement accuracy for custody transfer of petroleum products, aviation fuels, and a broad range of industrial liquids.

LC meters present a unique design, almost nullifying the stream shear action, balancing pressures in the meter chamber, ensuring an insignificant pressure drop through the meter. LC meter consists of a housing in which three synchronized rotors turn with no metal-to-metal contact neither between them nor with the housing internal surface, preventing the internal parts from wear, which results in a long lifetime.

The hydraulic sealing is accomplished by a stationary boundary layer of liquid, not by the wiping action of mechanical parts.

Main Features

  • High accuracy and repeatability.
  • Low pressure drop: the meter will work accurately both by gravity or under pump pressure.
  • Sustained accuracy: no wear from metal-to-metal contact inside the measuring chamber means almost no accuracy loss over time, fewer recalibrations, and longer lifetime. M series meters comply with MID (European W&M standard) and other International Weight and Measures accuracy requirements.
  • Weights & Measures approval (world-wide) for custody transfer with mechanical or electronic registration systems meeting API standards.
  • Designed and approved for ATEX Zone 1 Standard.
  • Wide temperature range: products can be metered accurately from -25°C to +55°C)
  • Wide viscosity range: LC meters can accurately meter products from less than 30 SSU (less than 1 centipoise) to 1,500,000 SSU (325,000 centipoise).
  • Maximum adaptability: the right-angle design provides unequalled mounting flexibility to meet your installation requirements.
  • Rated to 150 PSI/10.5 bar for fuels.

Material of Construction

  • Meter and rotors: Cast aluminium (or AISI 316 for class 8 M7 meter)
  • Internal components: aluminium, Ni-Resist, stainless steel, iron.
  • Seal materials: NBR, FKM, PTFE

Technical Specifications

M5 1½” or 2″ 250 l/min (66 GPM)
M7 2″ or 1½” 500 l/min (132 GPM)
M10 2″ 550 l/min (145 GPM)
M15 3″ 1000 l/min (264 GPM)
M25 3″ 1150 l/min (304 GPM)
M30 4″ or 3″ 1700 l/min (449 GPM)

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