Our truck-mounted volumetric proving vessels are available for on-site flow meter calibration of light petroleum products and some chemicals. All proving vessels are traceable to NIST and re-certified yearly. Calibrations are performed according to NIST Handbook 44 guidelines.

Stationary & Mobile Pump, Meter, Register, Valve Repairs & Maintenance

Trailer Mounted 750 Gallon Prover

  • Top & Bottom Load Distillate Petroleum Products
  • Flow Rates Up to 500 GPM

Trailer Mounted 50 & 100 Gallon Prover for Small Meters

  • General Fluid; DEF & Petroleum Products
  • Flow Rates 20-100 GPM

Trailer Mounted 100 Gallon LPG Prover

  • Flow rates to 100 GPM