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what is the Optimal Valves Positioning in a Water Distribution System?

I have a water network project for a residential area and I want to know where I should put isolation valves?

  • Isolation valves (usually gate valves) are generally intended to be either fully closed (isolating) or fully open (minimizing head loss). Gate valves do not have good throttling characteristics.

    Gate valves are essential for shutting for shutting down a portion of a system without the need to shut down the entire system.

    Because they are infrequently used, they are often neglect and can't be operated or found when needed. It is important to exercise isolation valves regularly.

  • Hello Mohamed,

    Can you confirm that you are using a Bentley product? (WaterCAD / WaterGEMS?) Is this for an academic study, or a real water system?

    Isolation valves can be manually closed to block off water flow. Generally speaking they should be placed throughout the network, so that maintenance and emergencies affect as few customers as possible. See page 101-102 of our Advanced Water Distribution Modeling and Management.

    A Criticality study using our Criticality tool can help you determine critical locations and potential problems with isolation valve configuration. Beyond this, it is often based on your engineering judgment, and help from the results simulated by your hydraulic model.

    If this does not help, please explain a bit more about your project.


    Regards,

    Jesse Dringoli
    Technical Support Manager, OpenFlows
    Bentley Communities Site Administrator
    Bentley Systems, Inc.