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Jiangsu Gaoxin Bellows Co., Ltd. was founded in 1989 with a construction area of over 13000 square meters. It is a modern private enterprise that integrates the design, production, and sales of corrugated metal hoses, metal bellows expansion joints (also known as bellows compensators), expansion joints, flexible rubber joints, and other products.The company's main products include various types of corrugated metal hoses ranging from DN6 to 1000mm, LNG low-temperature hoses, and various types of metal corrugated pipe expansion joints ranging from DN25 to 6000mm. The company's products strictly comply with advanced industry standards such as GB/T14525, GB/T12777, GB/T12522, GB/T12465, GB/T26121, CB/T965, as well as the American Expansion Joint Manufacturing Association EJMA at home and abroad. In addition, the company has specifically formulated enterprise standards for a series of corrugated pipe products for gas use to guide production. Our company's products are widely used in nuclear power, oil, gas, low-temperature, chemical, wind power, thermal, photovoltaic, smelting, construction, heating pipelines, machinery manufacturing, aerospace and other fields. We have cooperated with many well-known enterprises such as Sinopec, PetroChina, China Resources Gas, and New Austrian Gas, and exported to countries such as Russia, Brunei, Kazakhstan, and Pakistan.The company has passed relevant certifications such as ISO9001 Quality Management System, ISO14001 Environmental Management System, ISO45001 Occupational Health and Safety Management System, TS2732H18-2026 Special Equipment Production License, etc. It has a sound quality assurance system to ensure the traceability of product quality. The company has 20 sets of various corrugated pipe forming equipment, 12 corrugated pipe production lines, and more than 150 sets of various mechanical processing equipment. This includes advanced specialized production equipment such as automatic longitudinal welding machines, large tonnage four column hydraulic presses, fully automatic corrugated pipe forming machines, dedicated automatic ring seam welding machines, and environmentally friendly sandblasting, painting, and drying systems. It has a complete set of ultrasonic pure water cleaning production lines, which can effectively ensure the cleanliness of products. The company has advanced specialized testing facilities such as eddy current testing, mechanical performance testing, chemical analysis, X-ray testing, pressure resistance testing, airtightness testing, fatigue testing, helium mass spectrometry leak detection, etc. The company has long insisted on investing in technological development and has obtained more than 20 patents, including large pull rod transverse compensators, bypass straight pipe pressure balance compensators, universal joint compensators, double-layer pipe blank corrugated compensators, etc. At the same time, the company has design and production capabilities for various non-standard products.The company currently has more than 120 employees, including 15 engineering and technical personnel, with strong technical strength. All relevant personnel in the company have obtained corresponding professional qualification certificates, and there are dedicated product quality testing institutions and testing personnel.The company will continue to adhere to the management philosophy of "people-oriented", pay attention to the use of modern management concepts, take "perfect quality, dedicated service" as the guiding ideology, and take "exploration, innovation, pragmatism, and efficiency" as the development purpose, strive to provide products and services for users, and move towards newer and higher goals!
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JIANGSU XINGAO BELLOWS CO., LTD.

News

10-18

2024
The reason for the damage of the corrugated expansion joint guide tube
The role of the guide tube in the corrugated expansion joint should not be underestimated. The installation of the guide tube in the corrugated expansion joint requires a smooth flow of medium, reducing the structural vibration caused by changes in fluid flow characteristics when high-speed fluid passes through the corrugated pipe, and protecting the corrugated pipe. When used in working conditions with strong scouring force, it can also play a role in anti scouring and wear resistance, protecting the corrugated pipe from direct scouring by the medium and extending the service life of the corrugated expansion joint.After running for a period of time, the expansion joint experienced non-standard cracks in the guide tube, which severely shattered and fell off. Analyzing the causes of the damage can help avoid problems during the selection and use process in the later stage. The technical personnel of the expansion joint manufacturer have summarized the following points based on actual applications:1. After conducting modal and stress analysis on the flow guide tube using finite element method, it was found that the fatigue failure of the flow guide tube was caused by the internal flow excitation of the pipeline, resulting in damage.2. The inherent natural frequency of the guide tube resonates with the vibration frequency of the piping system, and resonance can easily cause damage to the guide tube.3. During operation, the flow rate of the circulating medium suddenly changes and the internal pressure of the pipeline system suddenly increases.4. Changes in operating conditions can cause vibrations in the piping system or internal media. The phenomenon of resonance between the guide tube and the piping system leads to fatigue, causing cracks and fractures in the guide tube.
If you have any needs, please call the national unified service number:18861091828

JIANGSU XINGAO BELLOWS CO., LTD.

East Factory:D5-8, Jinbotong Science Park, No.8 Jintong Road, Baimi Town, Jiangyan District, Taizhou City, Jiangsu Province

West Factory: No.117 Hangzhou Road, Jiangyan Economic Development Zone, Taizhou City, Jiangsu Province

Tel:0523-88817766

Email:Willa@xgbellows.com

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