Hydraulic sealing between the rotors and the measuring chamber wall is accomplished by a stationary boundary layer of liquid-not by the wiping action of mechanical parts-thereby ensuring sustained accuracy, long service life with minimal wear, and low pressure drop suitable for operation on gravity low or pump pressure.Īll MSA and MSAA-Series spherical shells are constructed of steel. These rotors accurately segment flow into a precise volume of liquid for each revolution, with no metal-to-metal contact inside the measuring chamber. The shell houses a traditional LC metering element that employs three rotating and synchronized rotors. Liquid Controls MSA and MSAA-Series meters consist of an outer spherical steel-case shell with flanged inlet and outlet ports. They incorporate a unique design, presenting minimal intrusion in a flowing stream of liquid, as well as minimal pressure drop through the meter. Liquid Controls steel-case MSA and MSAA-Series rotary motion positive displacement (PD) meters offer the ultimate in flow measurement accuracy for bulk custody transfer of petroleum products, aviation fuels, LPG, crude oil, petrochemicals, and a broad range of industrial liquids. MSA And MSAA Series Positive Displacement Meters Weights & Measures approval (world-wide) for custody transfer with mechanical or electronic registration systems meeting API standardsĮlectronic accessories designed and approved to Class 1 Div. Self-contained operation without electrical power or signal conditioning (for units equipped with mechanical registers, printers or presets) no special piping requirementsĮlectronic output and registration equipment where enhanced accuracy and electronic communications are needed Low maintenance, no metal-to-metal contact in measuring chamber A wide range of accessories are available to meet almost every metering need. Available with traditional mechanical seal or glandless magnetic driven pulse output device. Provides the energy efficient and functional performance desired from an economical volumetric measuring instrument. 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). LC MA®Series Positive Displacement Meters
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