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
