To ask an engineering question please visit our forum site at Eng-Tips.



Browse our archive of questions and answers below or to access our old forum database of over 10000 questions and answers please visit the old Ask@ forum.


inlet and outlet pipe sizes for water storage and vent
Last Post 02 Jul 2015 09:32 AM by Mike McGregor. 1 Replies.
AddThis - Bookmarking and Sharing Button Printer Friendly
  •  
  •  
  •  
  •  
  •  
Sort:
NextNext
You are not authorized to post a reply.
Author Messages
Glenn Tanner
New Member
New Member
Posts:1

--
26 Jun 2015 10:29 AM
    Planning a water storage system and it will have to be vented to allow air to escape when water flows in. I dont want the air pressure to significantly impact the incoming water. Incoming line can be either 3 or 4 inch PVC and will be gravity feed. Vent line can be PVC 1 or 0.5 inch PVC. I'm not sure how to determine how large the vent pipe needs to be for the 3 or 4 inch pvc incoming water line.

    Any help is appreciated, thank you.
    Mike McGregor
    New Member
    New Member
    Posts:22

    --
    02 Jul 2015 09:32 AM
    You need to know your flow rate and determine (using the dimensions of the tank) your rate of change of water volume, this is the rate at which air is displaced.
    Personally I don't think it is an issue that needs complicated calculations. Air is compressible, and water is heavy. It would take a large pressure of air to impact the water flow. Your 0.5 inch PVC vent line will be adequate, I'm certain.
    You are not authorized to post a reply.