Threaded Flange Fabrication

Fabricated Flanges

Benchmark has supplied and fabricated a wide variety of piping products in support of the Oil & Gas Industry, LNG Plant Construction, Marine Services and Pulp / Paper Plants.

The variations of assemblies we have deployed are enormous, however typically a piping assemble consists of the following basic components:

Piping, Flanges, Valves, Fittings, Stud Bolts, Gaskets, Isolation Kits and Pipe Spools AKA Flanged Spools.

Threaded flange

threaded flange fabrication

1. Threaded flange
2. Thread
3. Pipe or Fitting

Threaded Flanges are used for special circumstances with their main advantage being that they can be attached to the pipe without welding. Sometimes a seal weld is also used in conjunction with the threaded connection.

Although still available in most sizes and pressure ratings, screwed fittings today are used almost exclusively in smaller pipe sizes.

A threaded flange or fitting is not suitable for a pipe system with thin wall thickness, because cutting thread on a pipe is not possible. Thus, thicker wall thickness must be chosen…what is thicker ?

ASME B31.3 Piping Guide says:
Where steel pipe is threaded and used for steam service above 250 psi or for water service above 100 psi with water temperatures above 220° F, the pipe shall be seamless and have a thickness at least equal to schedule 80 of ASME B36.10.

Please contact us today for more information about our wide range of Piping Products and Fabricated Piping Products. If you don’t see the type of gasket you need here? Not to worry! Benchmark has local stock on hundreds of types of Piping Products not listed and are updating our online inventory daily. What’s more if we don’t have it we will find someone who does and deliver to your site as fast as same day if possible.