Research on air valve of water supply pipelines

Yuebin Wu, Ying Xu, Cunteng Wang

Research output: Journal article publicationConference articleAcademic researchpeer-review

11 Citations (Scopus)


The flow condition of water supply pipelines are affected by terrain, buildings and other external factors, easy to produce the complex phenomenon of hydraulic transient. More seriously, it can cause the pipeline rupture, water supply interruption and equipment damage, resulting in huge economic loss. It is necessary to equip the air valves in actual projects to prevent the gas liquid transient flow. Firstly, this paper illustrated the effect, the type and the principle of air valve in detail. Secondly, combined with the actual projects, the authors analyzed the numerical simulations of water hammer. At last, the authors compared the results of air valve simulation. The results show that by comparison, the two stages closing air valve reduces not only the negative pressure but also the positive pressure than the one stage closing air valve. So the two stages closing air valve for the preventive measure in practical engineering could be effective.

Original languageEnglish
Pages (from-to)884-891
Number of pages8
JournalProcedia Engineering
Issue number1
Publication statusPublished - 2015
Externally publishedYes
EventIUTAM Symposium on the Dynamics of Extreme Events Influenced by Climate Change (2013) - Freiburg, Germany
Duration: 6 Sept 20159 Sept 2015


  • Air valve
  • One stage closing air valve
  • Two stages closing air valve
  • Water supply pipelines

ASJC Scopus subject areas

  • Building and Construction
  • General Engineering


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