The prefabricated components of a piping system are called spools. The spools consist of three components: Трубы, фланцы, и фитинги. The spools are assembled during fabrication and shipped pre-assembled to facilitate assembly with jacks, gauges, and other joining equipment. Суммируя, the spools join long lengths of pipe with flanges at the ends and must be properly positioned to withstand the weight and force of the structure. Сборные катушки труб
The prefabricated coils are primarily made of stainless steel. Their good adhesion to steel provides superior long-term corrosion resistance and pipeline protection in a low-temperature environment. Higher adhesion properties ensure excellent cathodic dissolution resistance, which reduces the overall cost of cathodic protection during pipeline operation.
Shipbuilding and maintenance encompasses a wide range of projects and involves intensive piping to connect a variety of equipment and transport fluids and gases. Prefabricated pipe spools play an important role here. Сборные катушки труб
С&Н is a professional supplier. We have the ability to provide prefabricated pipe spires, including pipes, фитинги, and flanges, based on design drawings and requirements, и сваривать их в “spires” suitable for on-site assembly. Сборные катушки труб

Features of Prefabricated Pipe Spools
- Welding method: Plasma welding
- Инспекция: PT or RT& Pressure Test
- Custom made as per provided drawings
Pre-Fabrication Process
1. Инженерное дело & Дизайн
Detailedisometric drawings, П&ИДЕНТИФИКАТОР, and 3D models are created
Selection ofматериалы, pipe sizes, и фитинги
Weld mapping andнеразрушающий контроль (неразрушающий контроль) planning
2. Material Procurement & Cutting
Трубы и фитинги ,flanges are made according to project specifications
Precisioncutting using CNC machines, saws, and plasma cutting
3. Сварка & Assembly
Butt welding, Сварка сокета, and TIG/MIG welding for strong joints
Фланцы, локти, футболки, и клапаны are fitted as per design
Welding inspected usingX-ray, ultrasonic, or dye penetration testing
4. Поверхностная обработка & Покрытие
Galvanization, рисование, or powder coating for corrosion resistance
Internal lining (ФБЕ, эпоксидная смола, rubber, or FRP) based on application
5,Тестирование & Quality Control
Hydrostatic pressure testing ensures leak-proof operation
Dimensional and alignment checks for precision
неразрушающий контроль (Рентгенография, UT, MPI) to detect welding defects
6. Упаковка & Транспорт
Pipe spools are labeled, bundled, иshipped to the installation site
Modular skid units can be transported for quick assembly
Advantages of pipe spools prefabrication:
Parts are designed as “components” и “sub-components” before they are needed, so they can be installed on demand instead of being manufactured on site. It is convenient for the coordination and control of quality, schedule and management in a fixed area, reduces the workload of on-site prefabrication and on-site installation, and greatly improves the installation, quality and schedule of the whole project. And craftsmen are less exposed to the more adverse working environment of a construction site, improving safety performance.
С&Н Индустриальная Группа, трубка, производители фитингов и фланцев,Эпоксидное и полиэтиленовое покрытие fbe для трубопроводов с 1991 года, марка C.&Н Хуйтун ,С&Н Хунчэн.

