Unidirectional Meter Prover

Meter Engineers unique unidirectional meter prover eliminates system performance challenges of other unidirectional prover designs. A custom interchange design provides a positive sphere launch every time. This eliminates the sphere buoyancy problems causing the sphere to mis-launch. The interchange also includes a clean out line, to prevent debris from getting recirculated through the prover causing damage to the coating, seals, or sphere. The prover seal mechanism is designed to receive very little wear from operation and has been proven to last for many years.

Our unidirectional provers are ideal for high throughput installations where various hydrocarbon products are handled. With the capability of a large proving run sample, the Meter Engineers Unidirectional Prover is ideal for achieving a tight line balance.

All of our unidirectional provers are designed to meet the American Petroleum Institute recommendation of not-to-exceed 10 fps sphere velocity as well as all recommended design parameters. With 40+ years of experience in designing and building provers, Meter Engineers has developed its own set of quality procedures ensuring our provers meet and exceed our customers’ expectations every time. Plain and simple … we guarantee our provers will perform seamlessly in every application.

Each unidirectional prover starts with hand-selected pipe and fittings to ensure all material composition conforms to our own stringent expectations. The product is then assembled by certified welders maintaining the highest quality standards required by regulatory bodies and our customers. Meter Engineers safeguards construction by utilizing third-party NDT contractors to test 100% of the welds. 

The finished Meter Engineers product is protected with an epoxy-based ceramic coating. A durable finish with flexible properties allowing for pipe expansion and contraction without losing its superior bond to the interior of the pipe. It consistently outperforms other baked-on products and eliminates the inconvenience of prover re-coating.