Western Sales and Testing, Inc. specializes in requalification and refurbishment of Department of Transportation (DOT) compressed gas tube trailers and ASME ground storage assemblies. We also specialize in the fabrication of stainless steel manifolds and field repair service work on ground storage vessels. Our company has over 30 years of experience in the compressed gas industry and we are here to meet any type of compressed gas service needs.
Hydrostatic Testing and Requalification
Western Sales and Testing, Inc. is a United States Dept. of Transportation (DOT) approved facility for the requalification of DOT, UN, and ISO specification compressed gas cylinders and tubes. Our facilities and equipment can accommodate tubes up to 24 inches in diameter and 40 feet in length. We can offer our clients a 10 year requalification period through a DOT Special Permit through ultrasonic examination. If you have a configuration of tubes that need to be requalified, we offer various testing methods. Please contact us to discuss the best method of testing for your application.
Because we know how important it is for our customers to present a professional image, we can refurbish your trailer or ISO MEGC frame while tubes are being requalified. Frames are shot-blasted down to bare metal and inspected and refurbished to a like-new condition and all chassis, frames, and tubes are finished with custom paint coatings in our modern paint booths. Once finished, your compressed gas trailer or MEGC frame will be ready for years of reliable service.
Acoustic Emission Testing (AE) and Ultrasonic Examination (UE)
Acoustic Emission (AE) testing is essentially the use of sound to detect potential flaws in pressure vessels being tested. Requalification by Acoustic Emission Testing (AE) and Ultrasonic Examination (UE) has been granted to TEA Technologies, Inc. under Department of Transportation Special Permits in lieu of hydrostatic testing for DOT and UN/ISO tubes. TEA Technologies, Inc. has the latest acoustic emission equipment and is staffed by ASNT Level II technicians and a Level III Senior Review Technologist. We offer AE/UE testing at each of our facilities and our technicians are able to field test as well.
- 100% UE Tube wall scanning allows us to offer a 10 year requalification through a DOT Special Permit.
- Dry gas is used to pressurize the tube in lieu of water which keeps the tube cleaner
- Can test the unit at lower pressure with the use of gas instead of water
- Test equipment is mobile and can be brought to the customer for onsite testing
- UE can be used to further examine an anomaly
- May not require disassembly, resulting in a faster turnaround
C-23 Ten Year Neck Inspection
We provide C-23 Ten Year Neck Inspections that are required on all 22″ diameter tubes. New tube collars and flanges are installed following inspection.