Different Prover Water Draw Calibration Systems Explained

By Author: OGSI
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Proving processes cannot be imagined without meter prover systems. These systems help you to gauge the accuracy and performance to achieve perfection. Meter proving is referred to the physical evaluation of a liquid meter in a particular liquid service. Water proving systems are used to carry out tests to ensure optimum accuracy. There are several proving systems available in the market and you can choose the one that suits your needs best. Each meter is different from another and shows different characteristics during the proving process.

When it comes to meter prover systems, you have several choices at your disposal such as bi-directional, uni-directional, master meters, water draw calibration tanks & verification systems. You must note that the basic principles of all prover systems remain the same despite them having slightly different characteristics. Metering skid provers play an integral role in the proving process and they could be a standalone unit or an integrated part of the whole system.

Let’s take a look at the functioning concepts of different water draw calibration ...
... systems.

Mechanical Displacement Prover Systems
A mechanical displacement prover system has various key components/systems including sphere detector switches, 4-way flow diversion valve, calibrated section, auxiliary drain, and vent piping, launching and receiving chambers. Different flow meters can be calibrated by using this prover system and it is done by transferring a definite fluid volume.

Bi-directional pipe provers
Considered one of the most popular meter provers, bi-directional pipe provers are used owing to the accuracy they offer. If you are looking for a reliable prover system, then this is the one to go for. It is preferred as it allows the metering steam to pass through the prover and that too at full flow.

Bi-directional provers (With straight calibrated section)
Unlike conventional U-shaped bi-directional provers, bi-directional provers with a straight calibrated section offer a more stable flow rate during the proving process. Besides, it is also known for offering better repeatability and calibration accuracy. You will also see less wear and tear of the sphere and internal coating of the pipes. One of the prime reasons why this metering skid prover system is so popular is that you do not need to calibrate it after it is delivered.

Hope you found the post useful. For more information related to fiscal metering systems, feel free to get in touch with us.

Nick Thomas is Passionate Business Analyst and Marketer. Works at oil and Gas System international Dubai. Which make the best membrane nitrogen generator for oil and gas business. You can contact Nicks for the same.