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Lap Joint Stub Ends
  • Lap Joint Stub EndsLap Joint Stub Ends
  • Lap Joint Stub EndsLap Joint Stub Ends
  • Lap Joint Stub EndsLap Joint Stub Ends

Lap Joint Stub Ends

SN Valve is a leading China lap joint stub ends manufacturer. Lap Joint Stub Ends are short pipe joints with a flanged construction, designed to be butt-welded to the pipe at one end and designed to be used with loose flanges as the connecting surface at the other end. This design allows Lap Joint Stub Ends to make flexible and reliable connections in pipework.

SIZE:
DN10(3/8") DN15(1/2") DN20(3/4") DN25(1") DN40(1-1/2")
DN50(2") DN80(3") DN100(4") DN125(5") DN150(6")
DN200(8") DN250(10") DN300(12") DN350(14") DN400(16")
DN450(18") DN500(20") DN550(22") DN600(24")
Customized Size Consult Us


Materials and Manufacturing

Lap Joint Stub Ends can be manufactured in a variety of materials to suit different applications and fluid media. Common materials include stainless steel, alloy steel, and carbon steel. The selection of these materials depends on the pressure, temperature, fluid medium and corrosive requirements of the pipework system.
During the manufacturing process, Lap Joint Stub Ends need to go through several procedures, including raw material preparation, forging or casting, machining, heat treatment, surface treatment and so on. Strict control of these processes ensures that the quality and performance of Lap Joint Stub Ends comply with the relevant standards and specifications.

Lap Joint Stub Ends

Dimensions and Specifications

The sizes and specifications of Lap Joint Stub Ends are usually customised according to the design requirements of the piping system. Common size ranges include a variety of standard pipe diameters and wall thicknesses. In addition, Lap Joint Stub Ends can be customised according to different connection requirements, such as long flanges and short flanges.

Connection Methods

The connection method of Lap Joint Stub Ends mainly relies on its fit with the loose set flange. Specifically, the pipeline is first butt-welded with one end of the Lap Joint Stub Ends, and then the loose-set flange is set on the flap structure of the Lap Joint Stub Ends, and the flange is connected to the pipeline system through bolts and other fasteners. This type of connection not only achieves a reliable connection of the pipeline, but also facilitates disassembly and maintenance.

Areas of Application

Lap Joint Stub Ends have a wide range of applications in several industrial sectors including but not limited to:

Oil & Gas: Used in the connection and transfer of oil and gas pipelines to ensure the smooth flow and safe transfer of fluids.
Chemical industry: for the connection and transmission of fluids in chemical equipment, to meet the needs of various chemical reactions and processes.
Power industry: for the connection and transmission of power station piping systems, to ensure the normal operation and safety of power equipment.
Other industrial fields: such as shipbuilding, papermaking, food processing and other industries in the piping system connection, to meet the needs of a variety of industrial production and processing processes.

Lap Joint Stub EndsLap Joint Stub EndsLap Joint Stub Ends

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MATERIAL:
STAINLESS STEEL
A-182 - F-304
Dual Grade 304/304L
Dual Grade 316/316L
316
304H
Dual Grade 304/304H
Dual Grade 316/316H
316H
309
310
317L
321
347
347H
904L
DUPLEX STEET
F51/2205
F53/2507
CARBON STEEL
ASTM/ASME
SA-105
A-350
LF-2
LF-3
A694
SA-516-70
A36
TITANIUM
Gr2
Gr12
CHROME ALLOYS
A-182-F-1
F-5
F-6
F-9
F-91
F-11
F-12
F-22
ALUMINUM
3003
6061
5083
other grades upon request
HASTALLOY
B-2
C-276
G
X
C-22
INCONEL
600
601
625
718
MONEL
400
COPPER
90/10 (C70600)
70/30 (C71500)
X
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