Serving approximately 507,432 customers in the mountainous city of Tbilisi, the GWP water distribution network consists of 3,600 km pipes and spans five vertical zones. To obtain a more efficient water supply, optimising both electricity and water usage, GWP decided to invest in 500 high-quality pressure-reducing valves from AVK. By avoiding water hammer occurrences and managing pressure created from reservoirs situated at heights, GWP reduced the rate of bursts and leakages.

Upon installation of the first 235 pressure-reducing valves, electricity use was lowered by approximately 10 per cent and pumped water reduced by 27,740,000 m³/year, which is a reduction in NRW of 50 per cent. In addition to electricity and water savings, the pressure-reducing valves also reduce operational and maintenance costs and have reduced pipe bursts by approximately 25 per cent.