back to the blog

The world of industrial fittings: characteristics and junctions



Industrial fittings for gaseous fluids and hydraulic fluids: elbows, reducers, caps, tees, couplings and welding nipples. Browse the Intertubi catalog.


05 May 2021
The world of industrial fittings, as can also be seen from the Intertubi catalog, is varied and contains a series of products intended for different applications and different types of fluids. In particular, the fluids that can be conveyed inside the systems are:
-    Gaseous fluids: these are gases of different types that can be conveyed for the correct operation of the systems.
-    Hydraulic fluids: these are liquids that circulate inside pipes and systems such as, for example, in the heating and cooling circuits.
Although this division highlights the extension of the field of application of industrial fittings, it represents only a part of the differentiations that can be highlighted and that highlight the variety of applications and possibilities inherent in this world.

Examples of industrial fittings that can be found

Hydraulic fittings, as previously mentioned, constitute an extensive and ever-expanding world. Some types of fittings are:
  •   - 90 ° elbows: types of fittings that connect pipes with axes arranged perpendicular to each other;
  •  Concentric and eccentric reducers: these are types of fittings that allow the passage from one pipe to another that present different dimensions;
  • Caps: allow you to block a pipe and constitute the terminal area;
  • Tees: are T-fittings that allow you to connect multiple pipes between them by dividing the fluid and allowing you to connect different systems;
  • Couplings and welding nipples: totally or partially threaded fittings that allow the extension or connection of a system.
These examples represent only some types of fittings available on the market and in the Intertubi catalog, but they allow us to explain how extensive this field is and how many different products are actually available.

An important difference for industrial fittings: welding against thread

Industrial fittings present an important distinction based on the type of junction that characterizes them. In fact, very often also on the basis of the denomination or the reference standard, a distinction is made between welded fittings and threaded fittings. This difference, which might seem marginal to an unwary eye, is an important choice in the design and implementation phase. The choice of a welded connection reduces the classic problems of unscrewing the screws and tends to create a permanent union inside the structure while, vice versa, the threaded connections involve an increase in the number of operations during the production phase of the product, but favor subsequent replacement and maintenance operations. It is not easy to understand which is the correct alternative to aim for, but preliminary assessments must certainly be made towards one or the other direction, in order to correctly design the system and make a clear choice towards the type of industrial fitting to use.

You could also read...

The steel flanges proposed by Intertubi


The models of flanges marketed and proposed by Intertubi with the relative reference standards.


23 April 2024

Features and types of cross fittings

13 July 2022

Our products