The activities of FK Maintenance are inclusive of, In Line Statutory Inspections of all Pressure Vessels of any description, which include, Air Receivers, Condensers, Digesters, Heat Exchangers, Autoclaves, Dryers, Surge Drums, Elution Columns, Road Tankers for either the Occupational Health and Safety Act, or for the Minerals Act.
We undertake all works inclusive of the following;
- Shut Downs & Break Downs
- Hydrostatic testing up to 450 bar
- Visual examinations, internal and external
- Ultrasonic thickness testing
Additional works on request;
- Magnetic particle and Dye Penetrant crack detection
- Radiographic weld examination
- General maintenance and repairs
What is hydrostatic testing
A hydrostatic test is a way in which pressure vessels such as pipelines, plumbing, gas cylinders, boilers and fuel tanks can be tested for strength and leaks.
The test involves filling the vessel or pipe system with a liquid, usually water, which may be dyed to aid in visual leak detection, and pressurization of the vessel to the specified test pressure. Pressure tightness can be tested by shutting off the supply valve and observing whether there is a pressure loss. The location of a leak can be visually identified more easily if the water contains a colorant. Strength is usually tested by measuring permanent deformation of the container. Hydrostatic testing is the most common method employed for testing pipes and pressure vessels.
Using this test helps maintain safety standards and durability of a vessel over time. Newly manufactured pieces are initially qualified using the hydrostatic test. They are then re-qualified at regular intervals using the proof pressure test which is also called the modified hydrostatic test. Testing of pressure vessels for transport and storage of gases is very important because such containers can explode if they fail under pressure.