Weld Neck 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.

Weld Neck flange Fabrication

1. Weld Neck flange
2. Butt Weld
3. Pipe or Fitting

Welding Neck Flanges are easy to recognize at the long tapered hub, that goes gradually over to the wall thickness from a pipe or fitting.

The long tapered hub provides an important reinforcement for use in several applications involving high pressure, sub-zero and / or elevated temperatures. The smooth transition from flange thickness to pipe or fitting wall thickness effected by the taper is extremely beneficial, under conditions of repeated bending, caused by line expansion or other variable forces.

These flanges are bored to match the inside diameter of the mating pipe or fitting so there will be no restriction of product flow. This prevents turbulence at the joint and reduces erosion. They also provide excellent stress distribution through the tapered hub and are easily radiographed for flaw detection.

This flange type will be welded to a pipe or fitting with a single full penetration, V weld (Buttweld).

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.