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Blog


Mini control units; UNI 7131 guidelines Mini control units; UNI 7131 guidelines
For the connection of various LGP tanks destined to the fuelling of a utility implant, the UNI 7131 suggests the use of devices such as the mini control units equipped with two or three stopcocks, which allow to switch cisterns without the dispersion of gas into the environment. The document [...]
02/07/2015

Eliminating dissolved gases' bubbles with air vent valves Eliminating dissolved gases' bubbles with air vent valves
Once again, we return to the topic of air vent valves; a valid help to eliminate the gases dissolved in the fluid that transports heat in our implants. Studies tell us that if, at the absolute pressure of 1 bar, we increase temperature from 20 °C to 80 °C , the maximum number of litres of [...]
25/06/2015

The stress corrosion cracking (SCC) and threaded brass fittings The stress corrosion cracking (SCC) and threaded brass fittings
Applying metallurgic knowledge to the threaded brass fittings teaches us how the alloys used in the creation of these products, if not treated correctly during all phases of manufacturing and even of installation, could suffer from a phenomenon known as Stress Corrosion Cracking (SCC). GNALI [...]
18/06/2015

The versatility of GNALI BOCIA's water manifolds The versatility of GNALI BOCIA's water manifolds
Beginning with the pressing of semi-finished product of considerable dimensions, derived from CW617N brass, begins GNALI BOCIA’s production chain for water manifolds. The subsequent processes are carried out in the Lumezzane facilities, by the use of latest-generation CNC (Computer [...]
11/06/2015

Advices for a good utilization of tubular electric heaters Advices for a good utilization of tubular electric heaters
Tubular electric heaters are usually resorted to inside open or pressurized water boilers or heaters, in order to get the fluid, normally water, to heat. For the sake of a better operation, their assembly should be done in a vertical position, but, especially, always submerged by the fluid to [...]
04/06/2015

Construction characteristics of pressure stabilizers Construction characteristics of pressure stabilizers
In the areas where the supply pressure coming from the network is not constant, a family of necessary accessories for the power supply of a plant is that of pressure stabilizers, which we might find in the catalogue of the GNALI BOCIA company. Their construction allows one to absorb even the [...]
28/05/2015

Taps for gas validated in accordance with the T-PED Taps for gas validated in accordance with the T-PED
The section in the GNALI BOCIA catalogue pertaining to taps for gas is one of the broadest ones dedicated to company production. In it we find in fact a number of different models which might be adapted to the different needs of the clientele. Some models of taps for gas are utilized for [...]
21/05/2015

Anti-sticking junctions for the safety valve Anti-sticking junctions for the safety valve
The pressure limitation on those plants where elevated temperatures might be reached is of fundamental importance for safeguarding the integrity of both the persons and the plant itself. To that end, a safety valve enabling the excess pressure to be discharged is usually inserted at a point that [...]
14/05/2015

FL289 the series of hoses for water FL289 the series of hoses for water
The FL289 series of products comprises all the available measures as regards hoses for water. Realized in stainless steel, they can be extended up to double their initial length, in order to be adapted to any installation situation. The threads on the ends, one male and the other female, are [...]
07/05/2015

The correct choice of a pressure reducer for water The correct choice of a pressure reducer for water
On the GNALI BOCIA catalogue we find a section dedicated to the plywood pressure reducer for water, a useful device to keep the pressure in the installation even in the event of significant changes in pressure at source, usually due to the fluctuations in demand on the part of the various [...]
30/04/2015

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