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Pressure Testing Questions

What is proof testing?

Think of pressure proof testing as a “stamp of approval.” It’s a non-destructive test that verifies that a component, product or system is capable of withstanding a pressure slightly above the intended operating pressure without suffering permanent damage. For instance, if a given pipe or tube is rated at 1,000 PSI internal pressure, we might subject it to 1,500 PSI and observe the effects, checking for any deformation, bending or warping of the material. 

What is burst testing?

Known as a destructive test, burst pressure testing is performed to determine how much overload a part or system can endure before breaking completely. Our burst pressure testing applies increasing levels of pressure to the component or system until we determine the pressure at which it sustains permanent deformation, and eventually the pressure at which it fails entirely. 

What is hydrostatic pressure testing?

To verify the equipment's ability to operate properly even under extreme conditions, the test pressure is substantially higher than its normal operating pressure, usually up to 150% of the design pressure. (In many ways, hydrostatic testing is a close cousin of burst pressure testing.)  During the course of the test we utilize whatever instrumentation and gauges are needed to collect the desired data. We use anything from manual charts and note taking all the way to computer-based data logging to track the performance of the equipment, looking for leaks and, of course, equipment failure. 

What is the flow coefficient (Cv)?

The flow coefficient or Cv of a coupling is defined as the volume of water in US gallons per minute that will flow through the coupling with a pressure drop of 1 psi. In other words, flow capacity is a measure of efficiency at allowing liquid to flow. The use of the flow coefficient offers a method of of comparing valve capacities and sizes for a number of different industries. The flow coefficient can measure beyond water. It can measure liquids such as acetone, ethanol and gasses such as helium and hydrogen. More information on these gravitates are located near the bottom of the page.

Walther Precision Coupling Questions 

What advantage does the Walther Precision brand offer?

  • Over 85 years experience>
  • Efficiency increase
  • High value products
  • Robust, reliable technology at the highest quality level in over 400,000 variants
  • Diverse series programme
  • Tailor-made, individualised solutions
  • Resources and environmental protection
  • Made in Germany

What is a monocoupling?

Monocouplings allow the quick and safe connection or disconnection of a single line. A mono coupling consists of two elements; the coupling and the nipple. Frequently, the two parts are referred to as "male and female", "mother and father part" or "socket and plug" because of their plug principle.

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