Socket weld tees are typically forged or cast from high-quality materials such as carbon steel (e.g., A105, A350 LF2), stainless steel (e.g., 304, 316), and alloy steel (e.g., F11, F22), offering excellent strength and pressure-bearing capacity. The nominal sizes of the main pipe and branch pipe are designed in accordance with American Standard pipe dimensions (e.g., NPS 1/8 to NPS 4), with pressure ratings covering Class 2000, 3000, 6000, 9000, etc., suitable for pipeline systems of different pressure levels. The socket depth and weld bevel angle strictly comply with standard requirements to ensure the sealing performance and structural stability of the weld after pipe insertion. The socket weld design is particularly suitable for small-diameter, high-pressure pipelines, as it can reduce welding deformation and improve connection reliability.
Applicable Standards & Technical Parameters
The manufacturing and inspection of products strictly adhere to ASME B16.11 Socket Weld and Threaded Forged Fittings, as well as ASTM material standards (e.g., ASTM A105 for carbon steel) and relevant pressure piping codes (e.g., ASME B31 series).
Key technical parameters include
●Size Range: NPS 1/8" to NPS 4" (corresponding to DN 6 to DN 100);
●Pressure Rating: Class 2000 (PN 33), Class 3000 (PN 50), Class 6000 (PN 100), Class 9000 (PN 150);
●Connection Method: Socket Weld (SW), with socket ends conforming to the bevel dimensions specified in ASME B16.11;
●Material Grades: Carbon steel (A105, A350 LF2), stainless steel (304/304L, 316/316L), alloy steel (F11, F22, F91), etc.
Performance Advantages & Application Scenarios
Core Advantages
1. High-Strength Connection: The socket weld structure forms an integral seal through welding, featuring excellent vibration resistance and pressure-bearing capacity. Suitable for high-pressure (Class 6000 and above), high-temperature, or leakage-prone working conditions;
2. Compact Design: Compared with flange connections, socket weld fittings are smaller in size and lighter in weight, saving installation space. Especially suitable for pipeline layouts with limited space;
3. Low Fluid Resistance: Smooth inner wall and reasonable flow channel design reduce pressure loss during medium flow;
4. Corrosion Resistance: Stainless steel or alloy material versions can meet the requirements of corrosive environments such as chemical and marine industries.
Typical Application Scenarios
●Petrochemical Industry: Process pipeline systems in refineries and chemical plants for transporting oil, gas, acid-alkali media;
●Power Industry: Steam pipelines and cooling water systems in thermal power plants and nuclear power plants;
●Natural Gas & Energy: Natural gas transmission and high-pressure pipeline branches in LNG projects;
●Marine & Offshore Engineering: Ship piping systems, hydraulic and water supply/drainage systems on offshore platforms;
●Pharmaceutical & Food Industry: Stainless steel fittings used in clean pipelines to meet hygienic requirements.
Sealing, Inspection & Maintenance Recommendations
1. Sealing & Inspection: After welding, weld slag must be cleaned, and Penetrant Testing (PT) / Magnetic Particle Testing (MT) should be performed to ensure no weld leakage;
2. Maintenance Recommendations: Regularly inspect welded joints for corrosion, cracks, or deformation. Special attention should be paid to material creep under high-temperature and high-pressure working conditions.
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