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.

Load Rack & Delivery Truck Pump, Meter, Register, Valve
General Repairs & Maintenance

1500 Gallon Prover with 100 Gallon Piggyback Can
- Bottom & Top Load Distillate Petroleum
- Products and Lube Oils
- Up to 1000 GPM

Trailer Mounted 50, 100 or 200 Gallon Prover for Small Meters
- General Fluid & Petroleum Product
- Meter Calibration 20-200 GPM Flow Rates