Flexible joint with two fixed flanges

Technical specifications of fixed flanged flexible joints

In industrial piping systems, controlling vibration and stress caused by temperature changes is a key factor in maintaining the longevity of the entire line. The fixed flanged flexible joint, directly fabricated by Tan Dat at our Ho Chi Minh City workshop, provides an effective technical solution thanks to its flexible structure.

The main components of the product consist of an annular corrugated stainless steel hose combined with an external load-bearing braided layer. This structure allows the hose to withstand high pressure, resist corrosion well, and significantly dampen misalignment forces. Both ends of the product are fixedly welded to flanges according to common standards such as JIS, BS, or ANSI, facilitating bolt connections.

Material standards and fabrication parameters

To meet diverse working environments ranging from clean water and steam to chemicals, Tan Dat provides flexible material options for design engineers:

• Corrugated hose and braided layer: Uses durable 304 stainless steel standard, or upgrades to 316 stainless steel when the system requires higher chemical corrosion resistance.
• Flange: Manufactured from carbon steel or stainless steel depending on the specific medium and project requirements.
• Overall length: Flexible fabrication according to actual drawings or specific installation requirements of each project.

Operating principles and application benefits

When pumps, air compressors, or turbines operate, they generate mechanical vibrations and thermal expansion phenomena. If the piping is completely rigid, these stresses will concentrate at the connection points, causing cracks or leaks.

Installing a flanged flexible joint section helps the system achieve the following benefits:

• Effectively absorbs vibrations from pumps and industrial fans, limiting noise transmission along the pipeline.
• Compensates for dimensional errors during construction or foundation settlement occurring during operation.
• Minimizes mechanical loads acting directly on the flanges of valves and measuring instruments.

Selection guide and installation notes for engineers

For the equipment to achieve long-term operational efficiency, engineers should note several important points during the design and construction process:

1. Determine the exact length: It is necessary to calculate the installation distance so that the flexible joint is not overstretched or compressed when the system reaches operating temperature.
2. Check the support system: Pipe supports must be arranged appropriately at both ends of the flexible joint so that the weight of the pipeline does not press directly onto the flexible hose body.
3. Avoid twisting: When tightening flange bolts, it is necessary to keep the hose body fixed to avoid cable twisting, which reduces material lifespan.

Production and inspection process at the Tan Dat workshop

Every product before leaving the Tan Dat workshop must undergo strict inspections regarding dimensions, tolerances, hydraulic pressure testing, and visual weld inspection. We accept custom fabrication orders for specific dimensions, flange standards, and material types.

Engineers and contractors in need of technical solution consulting, selecting appropriate parameters, or receiving detailed quotes, please contact Tan Dat Flex immediately via Hotline/Zalo: 0906 304 114 or email khopgiannoinox.vn@gmail.com for prompt support.