Your Professional Fitting Supplier
Sunlion Piping Engineering Co., Ltd. is a global supplier of piping systems and structural steel modules for energy, petrochemical, offshore, nuclear, and heavy industrial projects. With over 20 years of international project experience, Sunlion delivers vertically integrated solutions from raw materials to finished modules. The company serves leading EPC contractors and end users worldwide, providing compliant products, modular fabrication, inspection coordination, and OEM/ODM customization to support efficient and reliable project execution.
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![Stainless Steel Fitting]()
Stainless Steel FittingStainless steel fitting and alloy pipe fittings are critical components in industrial piping systems, widely used in oil & gas, petrochemicals, offshore engineering, power generation, -
![Carbon Steel Fitting and Alloy Steel Fitting]()
Carbon Steel Fitting and Alloy Steel FittingFitting carbon steel and low-alloy steel pipe fittings are the most fundamental and widely used connecting components in industrial piping systems, applied in oil & gas, petrochemicals, power
why choose us
Quality Control
All products are manufactured to recognized standards such as ASME, DIN, GB, and JIS and undergo coordinated inspection and testing by third-party organizations such as SGS to ensure traceability and consistent quality.
Customization Services
We offer OEM and ODM services, tailored to project requirements, including material grades, dimensional tolerances, marking systems, packaging methods, and documentation, to meet both standardized and project-specific engineering needs.
Integrated Supply Chain
We manage the entire supply chain, from steel pipe sourcing to prefabricated piping and structural modules. This integrated model simplifies procurement coordination, improves schedule control efficiency, and minimizes interface risks between multiple suppliers in complex projects.
Sales Markets
With over two decades of experience executing international projects, we have delivered materials and modules to projects in the Middle East, Australia, the Americas, Africa, and Europe, supporting EPC general contractors under various technical standards and logistical conditions.
Specification
|
Specification Item |
Details |
|
Product Name |
Fitting |
|
Material |
Stainless steel,Carbon Steel, Alloy Steel |
|
Standards |
ASME B16.9, ASME B16.11, ASTM A403 |
|
Connection Types |
Butt-weld, socket-weld, threaded |
|
Size Range |
1/2″ – 48″ (DN15 – DN1200) |
|
Wall Thickness |
Sch 5S, Sch 10S, Sch 40S, Sch 80S |
|
Fitting Types |
Elbows, tees, reducers, caps |
|
Surface Finish |
Pickled or polished |
|
Applications |
Industrial and process piping systems |
Advantages of Fitting
Durable and Long-Lasting: Fittings are typically made from materials that are resistant to corrosion, rust, and wear, such as stainless steel, copper, PVC, or brass. This durability ensures that pipe systems can withstand harsh environmental conditions and maintain their integrity over extended periods, reducing the need for frequent replacements.
Customization: Fittings come in various shapes, sizes, and configurations, allowing for customized solutions. This adaptability is crucial when dealing with unique or non-standard pipe system requirements, ensuring that the system can be tailored to specific needs.
Pressure Regulation: Some fittings, such as pressure relief valves and regulators, help control and maintain optimal pressure levels within a pipe system. This is critical for applications where pressure fluctuations could damage equipment or affect product quality.
Safety: Properly designed and installed fittings contribute to the safety of a facility or a building. They help prevent accidents, leaks, and contamination of fluids or gases. In industrial settings, safety measures like the use of safety relief valves and pressure gauges are often integrated into pipe systems to protect personnel and equipment.
Environmental Benefits: Efficient fitting can lead to environmental benefits. By minimizing leaks, optimizing flow rates, and reducing energy consumption, well-designed pipe systems contribute to sustainability efforts by conserving resources and reducing emissions associated with heating and cooling processes.
Types of Fitting
Elbows
Elbows are bent fittings used to change the direction of a pipe or tubing. They come in different angles, such as 90 degrees and 45 degrees, and help navigate around obstacles or create curves in the pipeline.
Tees
Tees are T-shaped fittings that allow the pipe to split into two or more directions. They are frequently used in branching systems, such as in plumbing or irrigation.
Reducers
Reducers are fittings that connect pipes of different diameters. They are used to adapt pipe sizes and ensure smooth flow without abrupt changes.
Couplings
Couplings are used to connect two pipes of the same diameter together, effectively extending the length of the pipeline.
Adapters
Adapters are used to connect pipes with different end connections, such as transitioning from threaded to welded connections.
Caps and Plugs
Caps are used to close the end of a pipe, while plugs are used to close off openings in the pipeline. They are essential for system maintenance and safety.
Unions
Unions are used for easy disconnection of pipes for maintenance or repairs. They consist of three parts: a female end, a male end, and a nut that connects them.
Crosses
Crosses are similar to tees but allow the pipeline to branch into four directions, making them useful in complex systems.
Metallic Materials for Fitting
Stainless Steel
Stainless steel is a popular choice for pipe fittings due to its excellent corrosion resistance, strength, and aesthetic appeal. It is often used in industries where hygiene and corrosion resistance are critical, such as food processing, pharmaceuticals, and chemical processing.
Carbon Steel
Carbon steel is another common metallic material used for pipe fittings. It is known for its strength and affordability, making it suitable for many industrial applications. Carbon steel fittings are often used in construction, oil and gas, and water supply systems.
Brass
Brass is an alloy of copper and zinc, offering good corrosion resistance and machinability. It is commonly used for fittings in residential and commercial plumbing systems.
Surface Treatment of Fitting
Anti-corrosion coating
Applying a layer of anti-corrosion paint, spraying, or coating with materials such as zinc on the surface of the fittings to prevent corrosion.
Galvanization
Fittings are often hot-dip galvanized or electroplated to increase their corrosion resistance.
Sandblasting
Removing oxide layers, oil stains, and other contaminants from the surface of fittings by sandblasting to make it cleaner and more conducive for subsequent coating.
Polishing
Polishing the surface of fittings to improve smoothness and glossiness, enhancing the appearance.
Hardening treatment
Some special pipe fittings may undergo surface hardening treatment to enhance wear resistance.
Acid pickling
During production, fittings are often acid pickled to make the surface smoother, free of oxide layers, and rust spots.
Applications of Fittings
Oil and Gas Industry
The oil and gas industry relies heavily on pipelines to transport crude oil, natural gas, and refined products. Fittings are essential for constructing and maintaining these pipelines, which often span vast distances.
Chemical Processing
In chemical plants, a variety of corrosive and hazardous substances are transported through pipelines. Specialized fittings made from materials like stainless steel or Teflon are essential to ensure the safe transport of these chemicals without contamination or leaks.
Water Treatment and Distribution
In the field of water treatment and distribution, fittings are indispensable. They enable the distribution of clean drinking water to communities and ensure the safe transfer of wastewater for treatment.
Power Generation
Power plants rely on pipelines to transport water, steam, and gases to generate electricity. Properly selected and maintained fittings are crucial for the safe and efficient operation of these facilities.
Pharmaceutical Industry
The pharmaceutical industry has stringent requirements for purity and sanitation. High-quality, sanitary fittings are used to transport pharmaceutical ingredients without contamination, ensuring the safety and efficacy of the products.
Plumbing
In commercial buildings, fittings are used extensively for plumbing systems, providing clean water for drinking, sanitation, and heating systems. Well-designed plumbing systems contribute to the comfort and safety of occupants.
HVAC Systems
Heating, ventilation, and air conditioning (HVAC) systems rely on fittings to distribute hot and cold water, steam, and refrigerants. Properly maintained fittings are essential for maintaining comfortable indoor environments.
Fire Protection
Fire protection systems, such as sprinklers, use fittings to ensure the quick and efficient delivery of water in case of a fire emergency, safeguarding lives and property.
Customization Services
We offer customized fitting manufacturing solutions to meet your needs. Key customization options include:
|
Material Grades |
Customizable |
|
Fitting Types |
Customizable |
|
Dimensions |
Customizable |
|
Wall Thicknesses |
Customizable |
|
Surface Finish |
Customizable |
|
Our customization capabilities extend beyond the options listed above. Should you have additional requirements, we are able to make flexible adjustments in accordance with your specific needs and circumstances. |
|
Packaging and Shipping
|
Packaging |
In pallets or wooden crates |
|
Transportation methods |
Road transport, rail transport, sea transport |
FAQ
As one of the most professional fitting manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please rest assured to wholesale high-grade fitting at competitive price from our factory. Contact us for more details.
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