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april 2011


The operating principles of water pressure reducers
When talking of water pressure reducers, the first thing that needs to be clarified is their operating principle. GNALI BOCIA factories produce reducers by using the piston offset configuration, in order to ensure that the outlet pressure is not altered by the inflow fluctuation. 
This type of [...]

Always at the forefront with our products for heating and plumbing
A market reference point, the GNALI BOCIA company designs and manufactures a wide range of products for heating and plumbing in its Lumezzane factories. Founded in 1970 it immediately specialized in producing valves, water fittings and regulators, LPG and industrial gases. 
With customer [...]

Heating manifolds with stopcock
Modern home systems widely use heating manifolds, which we can find in the versions with or without tap, both available in the GNALI BOCIA catalogue. 
The version with stopcock is made ​​starting from a raw hot forged piece made ​​of CW617N brass, the heating manifolds are nickel [...]

How tubular electric resistances are manufactured
The particular attention that GNALI BOCIA factories place in building tubular electric resistances is one of the key factors that guarantees long service life. 
The other important aspect is the right choice of materials constituting the tubular electric resistance which must resist against [...]

Let's not forget the air relief valve in our installations
How many sleepless nights spent cursing the noise level of the system. All due to the nuisance of air bubbles flowing together with the circulating fluid. 
In addition to the noise caused, these also entail cavitation problems in the circulation pump with possible damage. The air relief valve [...]

Marking non-extensible stainless steel flexible tubes.
When connecting domestic gas distribution systems and utilization devices such as gas hobs in modern kitchens, in order to ensure safety UNI 14800 has standardized the characteristics of non-extensible stainless steel flexible tubes particularly for those whose length exceeds 500 mm. 
The [...]

System safety with the boiler safety valve
The boiler safety valve is a necessary heating system safety device which ensures that the plant is not damaged, but more importantly that safety is not jeopardized, in the case of a sudden increase of pressure exceeding 3 bar. 
Its action is to allow the discharge of water from the plant when [...]

The brass fittings series for general use
The selection from the GNALI BOCIA catalogue includes a series of very specialised articles as well as an ample range of brass fittings suitable for every purpose in the realization of both water and gas plumbing systems. 
The brass fittings are made ​​with the best alloys available on the [...]

The right pressure regulator model
You can find a pressure regulator suitable for each use and each type of fuel in the GNALI BOCIA catalogue. They are generally used to make the pressure of cylinder gas compatible with the end device. They are usually employed for portable kitchens or devices, or in the field of camping where [...]

Distinctive features of the fuel shut-off valve
A fuel shut-off valve is fundamental for an installation’s safety. These devices interrupt the fuel flow to the boiler before the temperature of the liquid circulating in the system exceeds the free-air boiling point of water. Once the safety device has been tripped, we will have to wait [...]

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