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China, Chinese ASTM B16.25 B16.9 B16.28 Butt-Welding Cap1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Pipe FittingsCapButt-Welding Pipe FittingsSteel Fittings
EZ Steel Industrial Co., Ltd.
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Product Description Product Description ASTM B16.25 B16.9 B16.28 Butt-Welding Cap 1. Function & Purpose:To permanently seal the end of a piping system.Provides a blind closure, preventing the flow of fluid and isolating a section of the pipeline.Used for pressure testing, future system extensions, or terminating a line.2. Governing Specifications:ASTM B16.9: Standard Specification for Factory-Made Wrought Butt-Welding Fittings. This standard covers dimensions, tolerances, and ratings for standard caps.ASTM B16.28: Standard Specification for Wrought Steel Butt-Welding Short Radius Elbows and Returns. While primarily for elbows, it is often referenced alongside B16.9 for fitting requirements.ASTM B16.25: Standard Specification for Buttwelding Ends. This critical standard defines the precise geometry of the beveled end preparation for welding.3. Connection Type: Butt-WeldingDesigned to be connected to the pipe by a full-penetration butt weld.The cap has a beveled end that matches the beveled end of the pipe, as specified in B16.25.This creates a strong, permanent, and leak-proof joint that is as strong as the pipe itself.4. Key Design & Material Features:Wrought Construction: Manufactured from wrought steel (e.g., carbon steel, stainless steel, alloy steel), ensuring a homogeneous structure with superior mechanical properties compared to cast fittings.B16.25 End Preparation: The welding end is beveled with a specific angle (typically 37.5°) and a root face (land) to ensure correct fit-up and facilitate high-quality welding.Pressure Containment: The cap is designed to contain the full pressure of the piping system. Its wall thickness is rated to match the schedule of the pipe (e.g., Schedule 40, 80, 160).5. Common Applications:Oil and Gas Pipelines: For pipeline termination, pig launching/receiving stations, and future tie-in points.Process Piping Plants: To seal off nozzles on vessels or equipment temporarily or permanently.Power Generation: In high-pressure steam and water lines.Hydrotest Applications: Used to blind off sections of pipe for pressure testing.Chemical and Petrochemical Industries.6. Advantages:High Strength: The butt-weld connection provides maximum structural integrity.Zero Leakage: When welded correctly, it offers a perfect seal.Smooth Bore: Maintains flow characteristics and does not create turbulence.Durability: Suitable for high-pressure, high-temperature, and cyclic service conditions. Detailed Photos Production workshop Company Profile Certifications FAQ
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