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📞 1300 987 789 |
📞 1300 987 789 |


TCS 682 Piston Meter Series

The 682 series piston flow meter is a true positive displacement flow meter that has an inline design consisting of three (3) reciprocating pistons operating within their respective measuring chambers, where each piston works in a manner similar to an automobile engine.

The pistons are fitted to a wobble plate, which has a shaft extending from its upper surface and a valve pivot attached beneath it. The valve pivot drives a sliding valve from piston to piston as a known amount of product flows through each cylinder bore, controlling the sequence of events in a smooth mechanical motion.


  • Meets NIST, NMI, OIML, SABS and many other international weights and measures certifications.
  • Superior accuracy over the entire flow range.
  • Wide viscosity range - up to 50,000 SSU (11,000 CPS).
  • Low maintenance.
  • Long service life.
  • 75 years of proven performance and acceptance.
  • Industry leading 10 year warranty.


  • Design: reciprocating three (3) piston.
  • Size: 40nb (1 1/2”) flange connection.
  • Type: SP, SPA, SPD, AF and SS.
  • Flow range: 0.2 to 50 GPM (0.76 to 190 LPM).
  • Linear accuracy capable of: +/- 0.1% over flow range.
  • Repeatability: 0.01% over 250:1 turndown.
  • Pressure: 150 PSI (10.5 BAR).
  • Temperature: - 40 to 160°F (- 40 to 71°C).
  • Material: Aluminum, Ductile iron and Stainless Steel.
  • Seals: Viton®, Teflon® and Simriz®.


  • SP = Standard Petroleum: Gasoline, Fuel Oils, Diesel, Bio-Diesel, Kerosene, Vegetable oils, Motor Oils, Ethylene Glycol, Naptha etc.
  • SPA = Standard Petroleum - Aviation: Aviation Gasoline, Gasoline, Jet Fuels, Fuel Oils, Diesel, Bio-Diesel, Kerosene, Naptha, etc.
  • SPD = Standard Petroleum - Ductile (Nodular) Iron: Ethanol, Methanol, Aviation Gasoline, Gasoline, Diesel, Bio-Diesel, Fuel Oils, Kerosene, Vegetable Oils, Motor Oils, Naptha, etc.
  • AF = All Ferrous: Industrial Chemicals, Solvents, Pesticides, Nitrogen Solutions, Fertilizer, Chlorinated Solvents, Paints, Inks, Alcohols, Adhesives, Molasses, Corn Syrup etc.
  • SS = Stainless Steel: Industrial Chemicals, Solvents, Nitric Acid, Phosphorus Acid, Glacial Acetic Acid, Anti-Icing Fluid, Vinegar, Fruit Juices, etc.

Contact PETRO industrial's team of bulk fuel storage and dispensing specialists for more information today!