TECHNICAL DESCRIPTION

Neck (skirt) flanges according to the ANSI B16.5 / Class #150 standard are pipeline elements that are widely used in the construction of steel pipelines and pipe segments (spools) used in industry, industry, shipbuilding and ship repair.
They are easily distinguished from flat flanges by the long conical neck, which gradually transitions to a pipe or other fitting connected by butt welding. The conical neck provides a smooth transition to the diameter of the pipe, which reduces internal stresses in the material. The latter makes them very suitable for applications with elevated or lowered temperatures, as well as those with sharp mechanical or thermal fluctuations.
The inner diameter is shaped to match the diameter of the pipe, which reduces fluid resistance, as well as corrosion and wear from friction of the passing fluid.

We stock ANSI B16.5 / class #150 and #300 steel flanges, but can supply flanges up to class #2500, in a variety of materials. We have the necessary machining equipment, which allows us to also offer flanges with sealing surfaces.

• sealing surface type A, B2, C, D, E, F
• non-standard sealing surfaces on request
• profile grooves for metal sealing rings (segments) type RTJ
• threaded type flanges
• flanges made to customer specifications, and others.

SUPPORTED MATERIALS IN STOCK:

• Carbon steel ASTM A105 WCB