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  • Tianjin Wanlei Steel Pipe Co.,Ltd

  • TEL: 86-22-65815991

  • FAX: 86-22-25343802

  • CELL: 86-18526839451, 86-18526839452

  • EMAIL: admin@wanleipipe.com

  • WEBSITE: www.seamlesscarbonsteelpipe.com

  • ADD: Room 403, Unit 1, Building 31, Polar Square, Central Business District, Binhai New Area, Tianjin, China (Mainland)

Introduction Of Stub End

Mar 05, 2025

Stub end is a type of pipe fitting, the pipe fitting has a stub or a piece of pipe with an outward flare on one side. It is usually used in conjunction with lap joint flanges for connection in pipeline systems. Stub end can be divided into long pattern and short pattern according to their different shape. Stub is a ideal choice to replace butt welded flange when the pipeline requires flexible installation and disassembly.

 

The types of Stub End

Stub end can be divided into long pattern and short pattern according to their different shape.

1. Long pattern stub end: Compared with the pipe that it is connected, long pattern stub end has a longer length. This design makes it easy to alignment and welding for lap joint flange. It is suitable for applications where frequent disassembly is required.

2. Short pattern stub end: The length of short pattern stub end is similar to the pipe that it is connected. It is usually used for slip-on flanges. The short pattern stub end is suitable for applications where space is limited, and the flange needs to be close to the end of the pipe.

stainless steel stub ends

 

Applications of Stub End

Stub end is designed to be welded to the pipe or lap joint flange, providing a secure and leak-proof joint. Stub end usually acts as a sleeve that slips over the pipe or lap joint flange. This unique design makes it easy to disassembly of the joint when needed.

 

Our specification for stub end

Standard: ASME B16.9, MSS-SP-43

Size: 1/2"-36"

Wall thickness: SCH 5S, SCH 10S, SCH 10, SCH 20, STD, SCH 40, etc.

Material: Carbon steel: ASTM A234 WPB, ASTM A105, Stainless steel: ASTM A403 WP304L WP316L, WP321, etc.

Type: Long pattern or Short pattern

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