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Swing check valves and the importance of temperature when designing 24/02/2017
Swing check valves and the importance of temperature when designing
The main job of the stainless steel swing check valves in the INTERTUBI catalogue is to operate the fluid seal inside the system. The flap, in fact, closes through gravity when the flow inside the piping is interrupted. This is why swing check valves have to be fitted horizontally if possible, [...]

Save the date, an appointment with OMC 2017 at Ravenna 17/02/2017
Save the date, an appointment with OMC 2017 at Ravenna
In order to be recognised and to develop our vision of being the market reference point for both stainless steel and carbon fittings and valves, INTERTUBI will be an exhibitor at OMC 2017 at Ravenna, the reference point for research and equipment for offshore activities. OMC 2017 is, in fact, an [...]

EN 10226 threads replace ISO 7, recognised at world level. 10/02/2017
EN 10226 threads replace ISO 7, recognised at world level.
During 2004, EN 10226 threads replaced ISO 7 threads, but only by fact as a standard re-edition. The new threads are suitable for creating pressure tight joints. They can, in fact, be found in valves and unions, in particular those products that respect ISO 4144 or EN 10241. In order to seal, [...]

Full flow ball valves for reducing load loss 03/02/2017
Full flow ball valves for reducing load loss
The range of ball valves sold by INTERTUBI includes a wide variety of products that can be used for any requirement related to industrial  plants. The most sought-after characteristic for a ball valve with threaded or flanged ends is total flow, namely the fact that when open, the internal [...]

Installing Y strainers in systems 27/01/2017
Installing Y strainers in systems
Knowing how a Y strainer works is important for installing it correctly in an industrial plant. One of the main components for its operation is gravity, which defines the manner in which it can be fitted. It is, in fact, essential to make sure that the cleaning flange is always turned downwards, [...]

Weld neck flanges for absorbing stress caused by expansion 20/01/2017
Weld neck flanges for absorbing stress caused by expansion
The thickening of the weld neck flanges near the threaded union makes the connection stronger and eliminates a stress concentration point near the flange. This advantage is important in all those systems where expansion is caused by extreme heat differences during operation. The weld neck [...]

OHSAS 18001 certification, international recognition 13/01/2017
OHSAS 18001 certification, international recognition
Organised companies such as INTERTUBI have to consider OHSAS 18001 certification, an international standard indicating the requirements that an Occupational Health and Safety Assessment System must have. OHSAS 18001 certification was drawn up by BSI (British Standards Institution) and today is [...]

WP316L steel with optimal welding and working characteristics 06/01/2017
WP316L steel with optimal welding and working characteristics
WP316L is part of the austenitic stainless steel family, and it is one of those contemplated by the ASTM A403 standard for the production of connections, even if only a part of this standard is related to material such as WP316L. It also relates to semi-finished products such as plates, bars, [...]

Globe valves take their name from their shape, even though today they are no longer round 30/12/2016
Globe valves take their name from their shape, even though today they are no longer round
We deal in particular with two types of globe valve, Y pattern and T pattern, which differ according to how they are configured internally. The Y pattern valve is used  when fluid does not have to be deviated much, and the plug is sloped at an acute angle in relation to the flow. The Intertubi [...]

Harmonized norms deriving from the PED directive 23/12/2016
Harmonized norms deriving from the PED directive
European Directive 97/23/EC was issued in 2002. Known also as the PED directive, it regulates pressure equipment and assemblies, including steel couplings. The PED directive led to the emanation of a series of regulations, defined as harmonized, which at a Community level refer to the [...]


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