Provery

Small Volume Provers alone overcome the disadvantages and problems with existing proving solutions for establishing flow metering accuracy in custody transfer applications:

• Master meters, while less expensive to purchase, require flow calibration and their tendency to drift increases system uncertainty. A smaller turndown ratio than the SVP also means that covering the same range of flow rates requires several master meters of different sizes, increasing ownership and maintenance costs.


• Pipe provers, once the market standard, are now known for low turndown ratios, frequent maintenance requirements and very large footprints. Contractors and systems integrators often ignore potential for longer-term issues around maintenance, safety and repeatability. Over time these can make pipe provers an inefficient solution, poorly adapted for changing process requirements.


• Seraphin can provers, common in downstream rail and truck terminals, are extremely limited in size and flow rates, and require the interruption of the flow to perform the meter proving. Portable SVPs, meanwhile, eliminate open air handling of hydrocarbons, and avoid any product disposal concerns because proving is done in line; They offer a faster, safer alternative. And the battery-powered model is a popular replacement.