Lap Joint Flanges (LJF) are a type of flange that is used to connect pipes of different materials or sizes. LJF consists of two parts: a stub end and a backing flange. The stub end is welded to the pipe, while the backing flange is bolted to the flange of the adjoining pipe. The backing flange can be made of a different material than the stub end, which provides flexibility in material selection for different applications. Therefore, ASME B16.5 and ANSI B16.5 standards can specify the dimensions and tolerances for Titanium GR1 and GR2 Lap Joint Flanges (LJF) to ensure their compatibility and interchangeability with other LJF flanges in the industry.
Sealing face type |
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Class 150 | Class 300 | Class 600 | Class 900 | Class 1500 |
Class 2500
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Raised face(RF) | NPS/2(DN 15)~ NPS 24(DN 600) | NPS/2(DN 15)~ NPS 12(DN 300)
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Ring Joint face (RJ) | NPS 1(DN 25)~ NPS 24(DN 600) | NPS/2(DN 15)~ NPS 24(DN 600) | NPS/2(DN 15)~ NPS 12(DN 300) |
Products | Lap Joint flanges(LJF) |
Material Grade | Gr1 Gr2 Gr3 Gr4 GR5 Gr7 Gr9 Gr11 |
Standard | ANSI B16.5 ASTM B16.5 ASME B16.47 JIS B2220 DIN2627-2628 |
size | 1/2"~ 60"NB NPS 1/2 - NPS 24 (DN 10 - 2000) |
Pressure Class | PN0.25~32Mpa |
(DIN) PN6 PN10 PN16 PN25 though PN250 | |
150# 250# 300# 400# 500# 600# 900# 1500# 2500# | |
Technique | Forged and CNC Machined |
Type | Weldnecks Slip-Ons Threaded Blind Socketweld and Lap-Joint |
Flange surface | FF RF TG RJ MFM |
Titanium Lap Joint Flanges LJF ANSI B16.5 can be used in a variety of applications where corrosion resistance, low weight, and high strength are critical. Here is an example of an application case:
In the chemical processing industry, strong acids and bases are often used in manufacturing processes, which can cause corrosion and degradation of piping systems. Therefore, materials that are resistant to corrosion and can withstand the harsh chemicals are required.
Titanium Lap Joint Flanges LJF ANSI B16.5 can be used in such applications due to their excellent corrosion resistance properties. For example, in the production of hydrochloric acid, a highly corrosive chemical, titanium Lap Joint Flanges LJF ANSI B16.5 can be used in piping systems to prevent corrosion and prolong the lifespan of the system.
Additionally, the use of titanium Lap Joint Flanges LJF ANSI B16.5 can also result in weight reduction in the piping system, which is particularly important in aerospace and marine applications where weight reduction is critical.
In summary, titanium Lap Joint Flanges LJF ANSI B16.5 can be used in various applications where corrosion resistance, low weight, and high strength are required, such as in the chemical processing industry, aerospace, and marine industries.
Tag: pipe flange, Titanium Flange, Lap Joint Flanges LJF