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Comparison between the S235 steel and the more powerful P235GH. 24/06/2016
Comparison between the S235 steel and the more powerful P235GH.
The new European EN 10025 standard defines the category of structural steels, such as the S235 steel, generic alloys used for manufacturing carpentry and defined by their yield strength. It does not have special chemical characteristics, and its composition must be kept within well-defined [...]

Fittings with NPT (National Pipe Tapered) thread according to the ANSI B 1.20.1 standards 17/06/2016
Fittings with NPT (National Pipe Tapered) thread according to the ANSI B 1.20.1 standards
The NPT (National Pipe Thread) thread, also known as American thread, is one of the standards used for threaded-type junctions and complies with the ANSI B 1.20.1 standard, which lays downs its sizes and characteristics. Mainly used in the field of fittings and stainless or carbon steel valves, [...]

Carbon steel fittings in WPB o in P235GH 10/06/2016
Carbon steel fittings in WPB o in P235GH
In the INTERTUBI catalogue, we find two sections devoted to fittings. Therein, we come across carbon steel fittings manufactured with special alloys, suited to difficult working conditions. Precisely within this context, we have in the warehouse available products manufactured with [...]

The high resistance to corrosion of the WP316 03/06/2016
The high resistance to corrosion of the WP316
WP316 is an austenitic stainless steel that, together with other materials from the same category, allows a wide choice of applications; in our case we have a good resistance to high temperatures typical of many sectors. WP316 may be used in the chemical and petrochemical industries, in the [...]

Choice of the spring check valve and the right seal 27/05/2016
Choice of the spring check valve and the right seal
In the dedicated section of the catalogue, we may find such a versatile and reliable product as the spring check valve (aurora model), a device to apply to plants through a threaded connection. The sizes are suitable to small diameter pipes and may reach up to a maximum value of [...]

Characteristics of the cast (austenitic) stainless steel CF8M 20/05/2016
Characteristics of the cast (austenitic) stainless steel CF8M
In the production of valves through the micro-fusion process, a method mainly used for the realization of bodies of valves, the material used in most instances is the cast stainless steel CF8M, an alloy that is part of the austenitic stainless family and is the equivalent of the more famous AISI [...]

Calcolulation of the tightening of flat face flanges 13/05/2016
Calcolulation of the tightening of flat face flanges
Connections between pipes or parts of installations, such as tanks, are usually realized with flat face flanges, useful to make the assembly modular and facilitate a possible maintenance. Among detachable connections, in fact, these are the most widely used and the most robust ones as [...]

Lower pressure drops with the 45º F-F elbow. 06/05/2016
Lower pressure drops with the 45º F-F elbow.
Threaded connections may be done with a wide variety of connectors, among them: elbows, 45º F-F elbow, tees, sleeves, nipples, realized in order to ensure sealed connections on the thread that are capable of challenging almost any type of fluid, in especially harsh environments. We said [...]

Dished ends in a variety of different materials 29/04/2016
Dished ends in a variety of different materials
Completing a plant is easy if we can use dished ends, conceived in order to be butt-wedded to the ends of the pipes themselves, thereby creating the possibility of their future removal and being able to proceed with the installation. Their purpose is also to distribute stresses, especially in [...]

ISO 5211 Flange in order to connect actuators to valves 22/04/2016
ISO 5211 Flange in order to connect actuators to valves
A useful detail we find on ball valves available in the INTERTUBI catalogue is the ISO 5211 flange which, governed by the relevant standard, enables the connection to the valve itself of electric, hydraulic or pneumatic actuators capable of controlling the opening and closing of the circuit, or of [...]


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