Uni-Cig, inchiesta pubblica su report e progetti di norma gas

UNI-CIG, public inquiry on reports and draft gas standards

Papers on steel valves in networks and metering systems serving redelivery points

The Italian Gas Committee (Comitato Italiano Gas, CIG), as a UNI federated body, has placed in final public consultation Technical Report No. 1611620, "Gas Infrastructure - Supplementary Instructions for UNI EN 13774 with respect to steel ball shutter valves used in distribution systems."
Specifically, explains a statement from UNI, the document refers to all valves "used for pipelines and stations of distribution systems conveying combustible gases, with nominal sizes from DN 10 to DN 600 and with maximum working pressure equal to 16 Bar (1.6 MPa), in the operating temperature ranges from -10 °C to +60 °C and from -20 °C to +60 °C."
Comments can be submitted by March 30.
There will be time until May 9, however, to participate in a final public inquiry on draft standard No. 1609491, also prepared by the CIG, on "Gas Metering Systems - Gas Metering Devices on an Hourly Basis - Part 5: Requirements for Metering Groups Serving Redelivery Points of Distribution Systems that make available only volumes at thermodynamic reference conditions (Vb), with meters of a maximum flow rate greater than 10 m3/h and less than or equal to 160 m3/h (G6<caliber≤G100) and with operating pressure of up to 0.5 bar."
The document establishes "what measurement data must be collected and recorded by different devices considered, the minimum performance that each of the measurement groups considered must ensure, and the minimum construction requirements it must meet to provide said performance." In addition, UNI concludes, the standard indicates "the appropriate arrangements for the remote transmission of the established measurement data and the maintenance operations necessary to guarantee the specified performance over time."


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15 March 2023 - 16:16 CET