Definition:
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.
FEATURES
- Superior Accuracy over the entire flow range
- Low Maintenance
- Long Service Life
- 75 years of proven performance and acceptance
- Wide Viscosity Range - up to 50,000 SSU (11,000 CPS)
- Meets NIST, OIML, ATEX, NMI, S.WA, SABS and many other international weights & measures certifications
- Industry leading 10 YEAR WARRANTY!
SPECIFICATIONS
| Design |
Reciprocating Three (3) Piston |
| Size |
1-1/2" Flange Connection |
| Type |
SP, SPA, SPD, AF & 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 & Stainless Steel |
| Seals |
FKM, PTFE & Simriz® |
METER TYPES
SP Standard Petroleum
Gasoline, Fuel Oils, Diesel, Bio-Diesel, Kerosene, Vegetable oils, Motor Oils, Ethylene Glycol,
SPA Standard Petroleum - Aviation
Aviation Gasoline, Gasoline, Jet Fuels, Fuel Oils, Diesel, Bio-Diesel, Kerosene, etc.
SPD Standard Petroleum - Ductile (Nodular) Iron
Ethanol, Methanol, Aviation Gasoline, Gasoline, Diesel, Bio-Diesel, Fuel Oils, Kerosene, Vegetable Oils, Motor Oils, Naphtha, 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.