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Sampi Gravity Meter

The best measurement accuracy is provided by SAMPI SM Series rotary motion positive displacement (PD) metres for the custody transfer of petroleum products, aviation fuels, and various industrial liquids.

SAMPI metres have a special design that almost eliminates stream shear action, balances pressures in the metre chamber, and guarantees a negligible pressure loss across the metre. The SAMPI metre is made up of a housing in which three synchronised rotors rotate without making any metal-to-metal contact with either one another or the inside surface of the housing. This prevents internal parts from wearing out and extends their lifespan. Instead of the wiping action of mechanical pieces, a stationary boundary layer of liquid performs the hydraulic sealing.

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  • Features
  • Material of Construction
  • Technical Specification
  • 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. SM 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).
  • Maximum adaptability: the right-angle design provides unequalled mounting flexibility to meet your installation requirements.
  • Rated to 150 PSI/10.5 bar for fuels and industrial liquids.
  • 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.

A SAMPI brand Gravity Metering Set called SM50G for retail truck application is also part of SM series meters. This is a system to be used uniquely with SAMPI TEX flow computer

Sizes: 1″ 1/2 up to 4″.

Flow Rates: 25 l/min up to 1700 l/min (7 GPM up to 449 GPM).

End Connections: ANSI Flanged, NPT, BSPT, Slip Weld.

Pressure Ratings: Cast Case: 10 & 25 bar (150 & 350 PSI) non-shock working pressure.

Accuracy (Mechanical Registration): Capable of ±0.22% over a 10:1 range.

Repeatability (Mechanical Registration): 0.05% (±0.025%) of reading over entire range

SM5 1″1/2 or 2″ 250 l/min (66 GPM)
SM7 2″ or 1″1/2 500 l/min (132 GPM)
SM15 3″ or 2″ 1000 l/min (265 GPM)
SM30 4″ or 3″ 1700 l/min (450 GPM)
SM50 Gravity 4” 1300 l/min (343 GPM)

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