Description
The Liquid Controls M7 is a rotary positive displacement meter engineered for high-accuracy custody transfer. Its three-rotor design eliminates metal-to-metal contact, preserving measurement integrity while reducing maintenance. Capable of handling 100 GPM, the M7 is versatile enough for refined fuels, diesel exhaust fluid (DEF), and even acid-pH liquids like vinegar or phosphoric acid.
Features
- No metal-to-metal contact in the measuring chamber — no wear, sustained accuracy, fewer recalibrations
- Low pressure drop — operates on gravity flow or pump pressure
- Wide viscosity range suitable for thin to highly viscous fluids
- Wide temperature range: −40 to +85 °C (−40 to +185 °F)
- Available in Aluminum or Stainless Steel construction
- Seal options: Buna-N, Viton®, or EPDM (as specified by catalog number)
- Bearing material options: Ni-Resist, Carbon, or Teflon® (size and class dependent)
- Multiple meter classes covering petroleum, food-grade, acid-pH, DEF, and crude oil service
- Meets NTEP/NIST Handbook 44 and International Weights and Measures accuracy requirements
- Compliant with U.S. Military specifications
Applications
- Refined petroleum products and biodiesel
- Aviation and jet fuels
- LPG transfer
- Diesel exhaust fluid (DEF)
- Liquid sugars, sweeteners, syrups, and vegetable oils
- Acid-pH liquids: nitric acid, phosphoric acid, glacial acetic acid, citric juices, vinegar
- Treated and demineralised water
- General solvents, petrochemicals, and crude oil
Certifications
- NTEP / NIST Handbook 44 approved
- International Weights and Measures approved
- U.S. Military specification compliant
