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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 [...]

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. [...]

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 [...]

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 [...]

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