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Blog


Automatic air relief valves also for radiators Automatic air relief valves also for radiators
Impurities present in heating installation fluids, generally water, can lead to generating dissolved gases which tend to accumulate in the highest points of the circuit, including radiators. Air relief valves placed on radiators allow discharging air accumulation outside the system as this can [...]
01/01/2015

Electrical resistances for water heating Electrical resistances for water heating
We find electrical resistances for heating the system fluid both in domestic and industrial systems, be they part of pressurised circuits or free. They are produced by inserting a filament inside a copper tube, when this is crossed by the current it produces heat. This is separated from the [...]
25/12/2014

Fail-safe aspects of the fuel shut-off valve Fail-safe aspects of the fuel shut-off valve
When we talk of system safety, we immediately think of a fail-safe device such as the fuel shut-off valve which interrupts the fuel flow to the boiler when a higher temperature than the pre-set safety one is registered on exit. Calibration of a complex mechanism such as the fuel shut-off valve [...]
18/12/2014

Stainless steel flexible tubes model FL286 Stainless steel flexible tubes model FL286
The GNALI BOCIA catalogue offers non-extensible model FL286 stainless steel flexible tubes whose length of two metres maximum corresponds perfectly to the new EN14800 regulation. They are made from a corrugated pipe of austenitic stainless material which ensures the stainless steel flexible [...]
11/12/2014

Balanced pressure regulators for civil and industrial applications Balanced pressure regulators for civil and industrial applications
Regulating gas distribution pressure may be done through locally installed pressure regulators, particularly for low and small flow values. However, when the pressure and flow values are much higher we can use balanced pressure regulators. The models produced by GNALI BOCIA are spring loaded [...]
04/12/2014

Key-locked meter valves Key-locked meter valves
System parts adjacent to the meter, both upstream and downstream, are extremely important in the field of Natural Gas distribution. Meter valves enable intercepting gaseous fluids both upstream and downstream of the metering device and must ensure perfect sealing. Produced in chrome-plated [...]
27/11/2014

Sealing hydraulic fittings Sealing hydraulic fittings
The GNALI BOCIA catalogue has a dedicated section providing a complete range of generic threaded hydraulic fittings which are necessary for hot and cold water installations, both for domestic use and for heating. The machining accuracy and reliability also allow their use in gas installations. [...]
20/11/2014

Installing the safety valve Installing the safety valve
Let's talk about the safety valve and its use for protecting heating systems from overpressure, which can damage the components and above all create a hazard to persons. 
The safety valve only intervenes when the pressure in the system generates a force greater than the one created [...]
13/11/2014

The operating principles of water pressure reducers 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 [...]
06/11/2014

Always at the forefront with our products for heating and plumbing 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 [...]
30/10/2014

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