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Thread: expansion valve

  1. #1
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    expansion valve



    Dear guys,
    Suppose that we have two containers, One of them empty and the other one has for example 500 PSI pressure.
    We link them via a thermostatic expansion valve or via capillary tube or orifice.
    I have a simple question, After couple of hours pressure of both of containers should be same or not ?

    1 – If after a while pressure of these two containers would be same :
    If this is true, How a regulator of capsule of nitrogen works that drop pressure 120 bar to for example 200 PSI ?
    My friend told me structure of that is such as expansion valve contains a cone needle.

    2 – If after a while pressure of these containers would not be same :
    If it is true, When we turn a system off, How pressure of two side of low and high pressure reach to each other after a couple of hours ?

    Thanks for participating to this material.



  2. #2
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    Brian_UK is offline Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
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    Re: expansion valve

    Another college test question??
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

  3. #3
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    Re: expansion valve

    Quote Originally Posted by skyboy6142 View Post
    Dear guys,
    Suppose that we have two containers, One of them empty and the other one has for example 500 PSI pressure.
    We link them via a thermostatic expansion valve or via capillary tube or orifice.
    I have a simple question, After couple of hours pressure of both of containers should be same or not ?

    1 – If after a while pressure of these two containers would be same :
    If this is true, How a regulator of capsule of nitrogen works that drop pressure 120 bar to for example 200 PSI ?
    My friend told me structure of that is such as expansion valve contains a cone needle.

    2 – If after a while pressure of these containers would not be same :
    If it is true, When we turn a system off, How pressure of two side of low and high pressure reach to each other after a couple of hours ?

    Thanks for participating to this material.

    Watch this training video....
    https://www.youtube.com/watch?v=UfaucxS5rIc

    and read this page....
    https://www.bermad.com.au/how-to/how...ng-valve-work/

    and this one too
    https://industry.airliquide.co.za/si...age-regulators

    Best regards, Josip

    It's impossible to make anything foolproof because fools are so ingenious...

    Don't ever underestimate the power of stupid people when they are in large groups.

    Please, don't teach me how to be stupid....
    No job is as important as to jeopardize the safety of you or those that you work with.

  4. #4
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    Re: expansion valve

    Quote Originally Posted by Josip View Post
    thanks for your help

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