Testing & Inspection Services
Triad Bellows offers a comprehensive range of testing and inspection services to meet the diverse requirements of customers across a wide range of industries. These services are designed to ensure the performance, safety, and reliability of their custom metal bellows and expansion joint assemblies. Hydro testing verifies structural integrity by pressurizing assemblies with water to detect any leaks or weaknesses. Liquid penetrant inspection provides a non-destructive method for identifying surface defects such as cracks or pinholes. X-ray radiographic inspection allows for detailed internal analysis to uncover hidden flaws that might otherwise go undetected. For applications requiring the highest level of leak detection, Triad Bellows performs helium mass spectrometer testing, capable of identifying even microscopic leaks at a molecular level. These rigorous testing capabilities, combined with Triad Bellows’ commitment to responsive customer service and tailored engineering support, set them apart from competitors and ensure each customer receives a product that meets exacting specifications and industry standards.
Hydrostatic Testing
Hydrostatic testing is a crucial quality assurance process used by Triad Bellows to verify the structural integrity and pressure-handling capability of expansion joints and metal bellows. This test involves filling the unit with water and pressurizing it to 1.5 times its designed working pressure (psig), ensuring the assembly can perform reliably under real-world operating conditions. By simulating these extreme conditions, the hydrostatic test helps detect leaks, deformities, or material failures that could compromise safety or functionality. Each test is meticulously performed by experienced technicians, and every unit that passes receives individual certification from Triad Bellows. This process not only demonstrates the company’s commitment to safety and durability but also reflects its ability to meet the demanding and varied requirements of customers in industries such as power generation, petrochemical, and HVAC. Backed by expert support and responsive customer service, Triad Bellows ensures that every product meets or exceeds performance expectations.
Liquid Penetrant Inspection
X-ray Radiographic Inspection
Helium Mass Spectrometer Testing
Helium Mass Spectrometer Testing
1. What is the purpose of hydrostatic testing for expansion joints and bellows?
Hydrostatic testing is used to verify the structural integrity of a component by filling it with water and pressurizing it above its normal working conditions. This ensures there are no leaks or weaknesses in the assembly before it is placed into service.
2. How much pressure is used during hydrostatic testing at Triad Bellows?
Triad Bellows performs all hydrostatic tests at 1.5 times the unit’s designed working pressure (psig). This extra margin ensures that the product can safely handle real-world operating conditions.
3. What types of defects can Liquid Penetrant Inspection (LPI) detect?
LPI is highly effective at revealing surface-level defects such as cracks, porosity, laps, and pinholes in non-porous materials. These flaws may not be visible to the naked eye but can compromise the integrity of the component.
4. Which standards are followed for Liquid Penetrant Inspection?
Triad Bellows performs LPI according to recognized industry standards, including ASTM E165, ASTM E1417, and ASME Boiler and Pressure Vessel Code Section V, Article 6.
5. Why is radiographic inspection important for weld quality?
Radiographic inspection allows for the detection of internal flaws in welded components—such as voids, inclusions, or incomplete fusion—without damaging the product. It’s often used to certify welds before forming or final assembly.
6. What standards does Triad Bellows follow for radiographic and ultrasonic inspections?
Testing is conducted to meet ASTM E164, ASTM E273, ASME Section III (1) NB 2560/5330, and ASME Section VIII (1) UW 11/53, depending on the project requirements.
7. How does helium mass spectrometer testing work?
This test detects ultra-small leaks by introducing helium gas around a component in a vacuum. Any helium that escapes is ionized and passed through a magnetic field, where it is EJMAlated and measured for precise leak detection.
8. When should helium mass spectrometer leak detection be used?
Helium testing is ideal when maximum leak sensitivity is required, such as in vacuum systems, high-pressure applications, or components that must remain absolutely leak-free due to safety or performance demands.