We offer bubble leak testing services using the immersion, direct pressure and vacuum box techniques. Vacuum box
testing is commonly used in the testing of welded storage tank floors. Direct pressure is the standard technique when
testing threaded piping, tubing, welded reinforcing pads and rail cars. The immersion technique is applied when small
parts can be immersed in the testing fluid or when the subject can be covered with the test fluid such as a ball valve.
Although certification is not a requirement in some of the applicable codes for bubble leak testing, our personnel are
qualified and certified in accordance with our written practice which meets, or exceeds, the recommended guidelines
Hi-Tech has an ASNT certified Level III in Leak Testing which places us among the few companies offering this service.
Consulting and training in bubble leak testing as well as other leak testing methods, e.g. halogen diode, absolute
pressure change, helium mass spectrometer, may be provided upon request.