Lap Joint Stub End
Lap Joint Stub Ends are suitable for pipe systems that need frequent disassembly or adjustment, especially in applications where cost savings are important in alloy material use.
High Quality Lap Joint Stub End
SSM provides Lap Joint Stub End, a type of pipe fitting typically used in conjunction with a Lap Joint Flange. It is designed for pipe systems that require frequent disassembly and reassembly. The fitting consists of a short pipe section with an extended flange end, which is suitable for welding to the end of a pipe. The Lap Joint Stub End works with the Lap Joint Flange to offer flexibility and convenience, especially when adjusting the flange position is necessary.
Product Description
Materials
Lap Joint Stub Ends can be made from various materials, including:
- Carbon steel (e.g., ASTM A234 WPB)
- Stainless steel (e.g., ASTM A403 WP304, WP316)
- Alloy steel (e.g., ASTM A182 F22)
- Nickel-based alloys (e.g., Inconel, Hastelloy)
Size
Lap Joint Stub Ends range in size from 1/2 inch to 24 inches.
Standards
- ASME B16.9: Factory-made fittings, including Stub Ends, specifying the sizes and tolerances.
- MSS SP-43: Primarily applicable to thin-walled short-type stainless steel Stub Ends.
- ASTM A403 / ASTM A182: Applicable to forged or rolled fittings made from stainless steel or alloy steel, covering the chemical composition and mechanical performance requirements of materials.
- DIN Standards: German standards such as DIN 2642 define the production and dimensional specifications for different types of Stub Ends.
MSS SP 43 Lap Joint Stub End
Type A: Designed for use with Lap Joint Flanges, suitable for stainless steel piping, easy to install, and used in light and medium pressure applications.
Type B: Designed for use with Slip-on Flanges, suitable for carbon steel or thick-walled piping, and typically used in higher-pressure applications.
ASME B16.9 Lap Joint Stub End
ASME B16.9 Lap Joint Stub End is a pipe fitting commonly used with a Lap Joint Flange. Its primary function is to serve as a connection point between the pipe and the flange, allowing the flange to rotate freely during installation for easier alignment and adjustment.
Lap Joint Stub End Applications
Lap Joint Stub Ends are widely used in industries such as oil, chemicals, natural gas, food processing, and pharmaceuticals, particularly in pipe systems that require frequent disassembly and reconnection.
One-Stop Lap Joint Stub End Provider for All Your Needs
SSM has significant product advantages in manufacturing Lap Joint Stub End. Whether it’s quality or price, we will meet your needs.
More Information About Lap Joint Stub End
Advantages:
The Lap Joint Stub End offers convenient installation and disassembly, making it ideal for pipe systems that require frequent maintenance or inspection. Its design allows components to be easily removed, saving time and costs on pipe part replacements. Furthermore, it has good adaptability to pipe systems, and the installation process is simple. It is commonly used in low-pressure or medium-pressure systems.
Disadvantages:
Due to its design characteristics, the Lap Joint Stub End has relatively low load-bearing capacity, making it unsuitable for high-pressure or high-temperature environments. Over time, the corrosion of the pipe joints could affect its reliability, particularly in areas with corrosive fluids.
Dimensions of Lap Joint Stub Ends
GENERALNOTES:
(a) SeeTable11-1fortolerances.
(b) Serviceconditionsandjointconstructionoftendictatestubendlengthrequirements.Therefore, thepurchasermustspecifylongorshort
patternfittingwhenordering.
NOTES:
(1) Gasketfacefinishshall be inaccordancewithASMEB16.5forraised-faceflanges.
(2) The lapthickness,T, shallnotbe less thannominal pipewall thickness. SeeTable11-1fortolerance.
(3) WhenshortpatternstubendsareusedwithlargerflangesinClasses300and600,withmostsizesinClasses900andhigher,andwhenlong
patternstubendsareusedwithlargerflangesinClasses1500and2500, itmaybenecessarytoincreasethelengthofthestubendsinorderto
avoidcoveringtheweldwiththeflange.Suchincreasesinlengthshallbeamatterofagreementbetweenthemanufacturerandpurchaser.
(4) Whenspecial facingssuchastongueandgrooveormaleandfemaleareemployed, additional lapthicknessmustbeprovidedandsuch
additional thickness shall be inadditionto(not includedin) thebasic length, F.
(5) Thesedimensionsconformtotheradiusestablishedfor lap jointflanges inASMEB16.5.
(6) ThisdimensionconformstostandardmachinedfacingsshowninASMEB16.5.Thebackfaceofthelapshallbemachinedtoconformtothe
surfaceonwhichitsits.Wherering jointfacingsaretobeapplied, usedimensionKasgiveninASMEB16.5.
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