In recent years, application scenarios of industrial pipelines have been expanding continuously. Beyond traditional petrochemical industries, demand for special steel pipes is growing in new energy, sewage treatment, special equipment and other fields. Drawing on its technical accumulation, Zhejiang Xinda Petrochemical Steel Pipe Co., Ltd. optimizes products and services to adapt to more industrial application scenarios. On the basis of stable supply of core petrochemical products, the enterprise refines material and specification selection and optimizes processing techniques according to working conditions of different industries, improving heat resistance, pressure resistance and corrosion resistance of products for new energy supporting, chemical industrial parks, municipal industrial pipelines and other projects. Meanwhile, the enterprise improves basic services including pre‑sales consultation, delivery follow‑up and after‑sales support, responding timely to project demands of ...

Against the trend of green and standardized development in the manufacturing industry, Zhejiang Xinda Petrochemical Steel Pipe Co., Ltd. sticks to compliant operation, balances production norms with environmental protection and safety management, and pursues steady and sustainable growth. In production, the enterprise implements work safety management systems, standardizes equipment operation and workshop management, and handles waste and production supplies in compliance with regulations to meet environmental control requirements for industrial manufacturing. In business operations, it abides by market rules, cooperates with clients in good faith, and improves communication mechanisms for supply and after‑sales service to ensure smooth cooperation between suppliers and buyers. Moving away from extensive development models, the enterprise focuses on deep cultivation in segmented sectors. With compliant production, integrity‑based operation and safety management, it balances producti...

With the continuous advancement of domestic petrochemical and energy projects, demand for industrial pipeline supporting facilities keeps rising. Based on its industrial advantages, Zhejiang Xinda Petrochemical Steel Pipe Co., Ltd. takes the initiative to connect with regional and national petrochemical engineering projects, providing compliant and tailored steel pipe supporting services. The enterprise mainly supplies various steel pipes and pipe fittings for petrochemical use, suitable for chemical fluid transportation, high‑temperature and high‑pressure pipelines, oil‑gas supporting and other scenarios. It provides steel pipes with corresponding materials and specifications according to actual working conditions of projects, balancing practicality and safety. For a long time, adhering to tailored supply and standardized delivery, Xinda Petrochemical Steel Pipe has participated in pipe supply for multiple small‑and‑medium‑sized petrochemical supporting projects, assisting construc...

To continuously improve the stability of petrochemical steel pipes and adapt to harsh service environments in chemical and energy industries, Zhejiang Xinda Petrochemical Steel Pipe Co., Ltd. optimizes its internal production management system by improving process control, personnel standardization and inspection criteria to lay a solid foundation for product quality. In daily production, the enterprise carries out manufacturing in strict compliance with national and industrial standards for petrochemical products. For seamless steel pipes, alloy steel pipes, special petrochemical pipe fittings and other products, it establishes regular sampling inspection and full‑process traceability mechanisms, strictly controlling core indicators such as dimensional accuracy, material performance, pressure resistance and corrosion resistance to eliminate potential production risks. Meanwhile, the enterprise regularly organizes training for production and quality‑inspection staff on industrial st...

Recently, Zhejiang Xinda Petrochemical Steel Pipe Co., Ltd. has continuously focused on the R&D, production and supply of steel pipes for petrochemical use. Based on industry demands, it steadily consolidates production and operation foundations, and promotes quality upgrading of regional petrochemical supporting industries through pragmatic operation. As a local enterprise specializing in petrochemical steel pipe manufacturing, Xinda Petrochemical Steel Pipe conducts production in accordance with standards for pipelines used in petrochemical, energy and chemical industries. It strictly implements process control in raw material selection, production and processing, and finished product inspection to ensure its products suit various application scenarios including chemical transportation, oil‑gas pipelines and industrial equipment supporting. Relying on a stable production system and standardized quality inspection procedures, the enterprise keeps supplying compliant and reliable st...

First, a comprehensive inspection of the heat exchanger tube's appearance is performed, focusing on surface defects such as cracks, scratches, pits, bulges, scale, and rust. Welds should be inspected specifically for weld beading, incomplete penetration, porosity, and slag inclusions, as these defects can directly affect the tube's sealing and pressure-bearing capacity. For heat exchanger tubes exposed to corrosive media, special attention should be paid to inspecting the tube wall for uniform corrosion, particularly at vulnerable areas such as the inlet and outlet ports and U-bends, as these areas are often the first to show signs of corrosion thinning. Wall thickness measurement is a core inspection item. An ultrasonic thickness gauge is used to measure the heat exchanger tube at multiple points, focusing on tube-sheet joints and sections identified as problematic during previous inspections. The measured data should be compared with the original design wall thickness. Any wall th...

First, during the material preparation phase, pipe cutting should be performed using a dedicated electric pipe cutter according to the design dimensions. The cut must be vertical, and pipes thicker than 3mm should be beveled at a 60-80 degree angle to ensure mechanical strength. After cutting, the pipe ends must be thoroughly deburred and the interior cleaned to prevent residue from damaging the passivation film and causing corrosion. For pipe sections requiring welding, the welded areas should be cleaned of grease and debris, and then symmetrically spot welded at 6-8 locations to ensure no misalignment of the pipe axis and that the butt joint gap is no greater than 2mm. Welding is a critical step in ensuring installation quality. TIG welding should be used with high-grade welding wire. During welding, the inner wall of the pipe should be protected with argon gas to prevent oxidation. After welding, the weld seam should be mechanically polished or pickled for passivation to restore ...

Mechanical descaling is a common method. A flexible pipe cleaner, coupled to an umbrella-shaped, gear-shaped scraper, rotates and scrapes the inside of the condenser tubes, using circulating cooling water to remove scale and rust. The operation requires two passes, each with a blade diameter appropriate to the thickness of the scale. The first pass uses a blade slightly smaller than the pipe diameter to avoid damaging the pipe wall, while the second pass uses a blade closer to the pipe diameter to remove over 95% of the scale. Chemical cleaning uses a weak acid descaling agent that circulates for 24 hours to dissolve and remove scale. However, the solution concentration and cleaning time must be strictly controlled to prevent corrosion of the stainless steel substrate. For extreme scale buildup, high-pressure water jetting can be combined with high-pressure water jets, using 100-300 MPa to remove stubborn scale. This method is harmless to the pipe wall and does not cause chemical co...