The main advantage of single-line GMS is several times cost reduction on capital construction of the GMS facility and its maintenance. It is achieved because of using of main pipeline fittings and compressor plant bypass pipeline.
High flow measuring stability — 0.1% — is ensured via a number of technical solutions:
- 4 times as many measuring channels as there are in standard ultrasonic flow meters (16 against 4, respectively);
- The environmental temperature is the same in summer and in winter, thanks to subterranean location of the measuring system;
- Length of a straight section of the existing main pipeline before the measuring unit exceeds 100 DN (DN is the pipeline diameter).
The single-line GMS is an A-class measuring unit in accordance with the Gazprom Corporate Standard 5.37-2011.