Today, Unareti is the largest Italian multi-utility, at the top in the energy, environment, heat and networks sectors. With around 12,000 employees, it is the second largest national energy producer.

CPL CONCORDIA has been awarded the contract for the turnkey construction of the natural gas filtration, measurement and regulation substation for the distribution network of the city of Brescia.

The plant, with a flow rate of 125,000 Sm3/h, receives gas from the transportation network owned by Snam Rete Gas at a pressure ranging from 6 to 12 bar, through a DN 500 pipeline. A valve is inserted on each measuring line, downstream of the turbine flow meters, which allows the sequential insertion of the lines themselves according to the flow rate of the system. This solution, which has been successfully used abroad for some time, is also being applied for the first time on the Italian market.
The reduction unit consists of 4 lines with DN 150 pressure regulators and a remote control and regulation system for flow rate and downstream regulated pressure. The downstream manifold (DN 600 ring), after odorization with a double injection pump, is redistributed in four DN 400 output lines, three of which to the distribution network, one to the G1, G2 and G3 groups for the combined production of electricity and hot water for district heating in the city of Brescia.

The important plant is served by a supervision, control and management system:

• Carry out intrusion and fire control
• Monitor the functional status of the system
• It allows the remote management (automatic and manual) of all the operational functions of the entire cabin and its auxiliary systems and components

The automation focuses on the regulation of the outlet pressure, with limitation and distribution of the flow rate of the various lines in service and with limitation of the overall flow rate of the cabin, and the variation of the reference sets (pressure/flow rate).