Pressure testing is a popular method for verifying pressure ratings and evaluating the integrity for vessels, assemblies and components. Element offers two main types of pressure testing: hydrostatic and pneumatic. 

Pressure testing is often used as a way to test the integrity of components or vessels. When a unit is pressurized, leaks can be detected, weak areas can be identified, and potential issues can be addressed before they become failures in the field. Pressure testing is particularly important for tanks, seals, pipes, and any other components that will be used to hold or transport liquids or gases.

The type of pressure testing to use is generally determined by how the product will be used in the field. Considerations like working environment, pressure rating, product type and intended use are helpful in deciding which method is most appropriate. While many different test standards exist, the most important factor is what will be used to create pressure.

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Hydrostatic Testing

Hydrostatic testing uses liquid as the medium for applying pressure. Testing is performed by filling a vessel such as pipe, tubing, fuel assemblies, boiler components or fuel tanks with water. 

Hydrostatic testing is performed by filling a vessel such as pipe, tubing, fuel assemblies, boiler components or fuel tanks with water (or another specified liquid). The component is pressurized to a certain level for a specific amount of time, based on customer or industry requirements. Acceptance of the test is based on the ability of the material under test to hold the specified pressure without deformation of the material or leakage.

Element’s hydrostatic testing capabilities also include depth and submerge testing. These methods are performed to determine how a product will react underwater, or while under external pressure. Our labs can perform water ingress and flooding, as well as crush depth at pressures up to 200 PSI.

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Pneumatic Testing

Pneumatic testing is performed using air pressure, and is often used to find leaks in sealing systems, ductworks, or ventilation pipes.

Unlike hydrostatic testing, pneumatic testing relies on gas, like air, to create pressure. Using a pressure gauge, pneumatic testing assesses individual components and complete systems to isolate failures and determine pressure rating. 

Our experts can reproduce operating conditions in lab environments, allowing us to quickly find flaws and leaks or monitor pressure levels. We can assist in setting up custom testing protocols for a variety of components and scenarios. 


Standards We Test To

American Society of Mechanical Engineers


American Society for Testing & Materials

ASTM D751, ASTM E1003, ASTM F1387

Military Standards


Various Customer Specifications

Breeze Eastern ECO 28183; Amerex DTP ES-2010-1052, Goodrich ED/3424/55QS; Goodrich ED/3564/09QS; Honeywell SOW-WPI-PCE


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