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682 Piston Meter
The TCS 682 reciprocating piston flow meter combines outstanding accuracy (0.1% of flow rate) with one of the widest turndown ratios in the industry (250:1). The TCS 682 reciprocating piston flow meter has a rugged industrial design that is tolerant of changing viscosities, temperatures, and liquids with suspensions and solids.
This proven design has over 80 years of unmatched performance and continues to provide the very best in flow measurement,
backed by our industry-leading 10 YEAR WARRANTY (5 YEAR WARRANTY - LPG)!
​682 Design
The TCS 682 series flow meter is a true positive displacement meter that has a unique inline design consisting of three reciprocating pistons operating within their respective measuring chambers. 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 the piston to piston as a known amount of product flows through each cylindrical bore, controlling the sequence of events in a smooth mechanical motion. This smooth mechanical motion is then transferred through the driveshaft to the register.
682 Specifications
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Flow Range: 0.2 to 50 GPM (0.76 to 189 LPM); 250:1 Turndown Ratio
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Linear Accuracy: Capable of +/- 0.1% over flow range
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Repeatability: Capable of 0.01%
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Operating Pressure: 150 PSI (10.5 BAR)
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Temperature Range: - 40 to 160°F (- 40 to 71°C)
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Viscosity Range: Will accurately measure liquids up to 50,000 SSU (11,000 CPS)
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Connections: 1-1/2" NPT Companion Flanges are standard, 1" & 2" NPT optional. BSPT, Slip Weld, and ANSI flanges are available upon request.
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Types: SP, SPA, SPD, AF, SS, SSD, & LP
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Material: Aluminum, Ductile Iron, or Stainless Steel
862 Meter Configurations
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682 SPA - Standard Petroleum Aviation
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Materials of Construction: Anodized Aluminum, Stainless Steel, Ni-Resist, FKM
For metering refined petroleum products such as Aviation Gasoline, Jet Fuels, Ethanol, Gasoline, Fuel Oils, Diesel, Bio-Diesel, Kerosene, Vegetable Oils, Motor Oils, Naptha, Ethylene Glycol, etc.
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682 SP - Standard Petroleum
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Materials of Construction: Anodized Aluminum, Stainless Steel, Steel, FKM
For metering refined petroleum products such as Gasoline, Fuel Oils, Diesel, Bio-Diesel, Kerosene, Vegetable Oils, Motor Oils, Naptha, Ethylene Glycol, etc.
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682 SPD - Standard Petroleum Ductile Nodular Iron
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Materials of Construction: Ductile Iron, Stainless Steel, Steel, Simriz*, PTFE
For metering refined petroleum products such as Ethanol, Methanol, Gasoline, Fuel Oils, Diesel, Biodiesel, Kerosene, Aviation Gasoline, Vegetable Oils, Motor Oils, Naptha, Ethylene Glycol, etc.
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682 AF - All Ferrous
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Materials of Construction: Ductile Iron, Stainless Steel, Steel, Simriz*, PTFE
For metering Pecticides, Fertilizers, Food Processing Liquids, Industrial Chemicals, Solvents, Paints, Inks, Alcohols and many other liquids; such as Liquid Sugars, Liquid Feeds, MEK, Ethanol, Corn Syrup, Soy Bean Oil, Shortenings, Latex Products, Adhesiv
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682 SS - Stainless Steel
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Materials of Construction: Stainless Steel, Ceramic, Simriz*, PTFE
For metering the same products as the SP, SPA, SPD and AF meter types, but includes special handling liquids; such as Acids, Anti-Icing Fluids, Vinegar, Fruit Juices, Corn Syrup, Micro-Nutrients, etc.
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682 SSD - Stainless Steel DEF
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Materials of Construction: Stainless Steel, Ceramic, EPDM
For metering Diesel Exhaust Fluid (DEF), AdBlue, ARLA and AUS32.
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682 LP - Liquefied Petroleum Gas
Information
Materials of Construction: Ductile Iron, Stainless Steel, Ceramic, Ni-Resist, Buna
For metering Liquefied Petroleum Gas (LPG) and NH3.
