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Air Valves

I want to put a protection equipment such as air valves ..my question is from where I get the right specification ( diameter , the place , the number of air valve) I need a reference for it and how I could know I put it right and working quite fine (what will happen in the charts )

best regards

  • Hello Adnan,

    The following link has a lot of good information about air valves, including how they were and, generally speaking, how to set them up: Modeling Reference - Air Valves.

    How you go about this will be dependent on the system you are using. However, a good starting point would be to include air valves at local high points where there are negative pressures occurring. This will help you better control the negative pressures and how the air is released. 

    For the size and type of air valves, this will depend on the system, but you will likely want to try a number of different sizes. A smaller diameter for the outflow orifice or the use of a triple acting air valve can help make the pressure surge from the air pocket collapse less extreme. You can find details in the link above. 

    For the number of air valves, this will depend on your system. I would start with a few in important areas of the model or local high points where negative pressures are occurring. You can always add more air valves if they look like they are needed. You may also find the need to try other protection devices. HAMMER offers a lot of options that you can test. This link or the HAMMER TechNote and FAQ page will have additional information for you.

    Regards,

    Scott