Hydrostatic test (Pressure testing)
Hoses are pressure tested with water or another medium up to 4,500 bar to verify structural integrity and resistance under load.
Leak test (Tightness testing)
Performed in a leakage pool or with compressed air to identify leaks in couplings, welds, or hose walls. Air testing is used where liquid media are not desirable, for example, when there is a risk of contamination or residual media such as oil and water.
Nitrogen test
Tightness testing with nitrogen in the pressure range of 25–50 bar. Nitrogen is also used after flushing to dry and inert the hose, and to ensure that the hose maintains the desired degree of purity. This is especially important when purity requirements are in accordance with NAS 1638 class 6 or equivalent standards for particle control.
Hose flushing
Cleaning of hoses to remove contamination and particles before use.
Offered as:
- Water flushing
- Oil flushing (mineral-based)
- Flushing with glycol/water-based fluid.
Particle samples are taken as needed and can be documented in accordance with NAS 1638 or ISO 4406.
Retesting and condition monitoring
Used hoses are inspected and tested to assess further use. The test includes visual inspection, pressure testing, and documentation.
Certification according to third-party procedures
The tests are performed in accordance with requirements from certification bodies such as DNV or equivalent. Includes working pressure (WP), test pressure (TP) and burst pressure (BP). Any burst test is documented to verify compliance with applicable requirements.
Burst test
Performed to document maximum breaking strength and verify compliance with the supplier’s specifications. Used in quality assurance, certification and product development.