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Advice wanted on air tank fill-up

Discussion in 'Anything Airgun Related' started by JohnS, Jul 26, 2014.

  1. JohnS

    JohnS Member

    Messages:
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    Location:
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    A newbie question I'm afraid ! Being new to PCP rifle shooting with the recent purchase of a S400 and 3litre tank I am uncertain as to when I should refill my air tank. I understand I should get around 15 fills and am keeping count on a label on the tank but as all fills are not equal is there another way of knowing when it's fill up time ? Incidentally I'm filling my S400 to around 170/180 bar.

    JohnS
     
  2. Ganton Gunner

    Ganton Gunner Super Duper Moderator Staff Member Mod/Admin

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    do you not have a gauge on the bottle ?
    if so when your bottle wont fill to your desired pressure anymore that's when it needs filling ;)
    I ask about gauge on the bottle as gun gauges tend not to be as accurate
     
  3. JohnS

    JohnS Member

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    Yes, I've already been warned not to rely on the gauge on the gun. I was hoping there may be some form of early warning to avoid running out of air mid shooting session. I guess I can continue to use my counting method and fill up when I approach the 15 fill mark. Being a fellow Yorkshireman I don't want to waste any air ! :)

    JohnS
     
  4. Pidlar

    Pidlar Big Poster

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    As Pete says, if the sweet spot fill level is around 170 or 180 as soon as the bottle struggles to fill to that amount, it's time to have it filled.
    Enjoy your new rifle!
    Regards Stu.
     
  5. mattyts

    mattyts Donator

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    Location:
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    When the pressure in the bottle equals that of the pressure you want to fill to,its time to have it filled.

    You can tell because even with the valve fully open,no air will seem to flow into the gun because both vessels are balanced in pressure.
     
  6. terry1001

    terry1001 Major Poster

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    The simple way to check bottle pressure is to use the Best Fittings quick release kit. This has a blanking plug which also seals the fitting and you can put in the plug, open the valve (slowly as always) and the gauge will show the pressure in the bottle.
    Although your bottle pressure may drop to (say) 180 bar (your normal fill pressure) there will still be air left that you can use it's just that you will only be able to fill to a lower pressure and therefore get fewer shots from that fill. You will be able to continue shooting which is the main thing to worry about and you will still be within your 'sweet spot'.
     
  7. JohnS

    JohnS Member

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    Thank you guys. Your response is very helpful. I'm sure I'll get the hang of it now. Thanks again.

    JohnS
     
  8. Clubshot

    Clubshot Clubshot

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    Location:
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    Not a 100% Science as most do not count Shot's

    Most will get 300 Bar Bottles refilled once they can not exceed 200 Bar

    BOB/R
     
  9. dekka

    dekka Engaging Member

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    Location:
    Saltburn by the sea
    as others have said when pressure equalises you know it only has, say 180 bar in it for your ideal fill, but you can fill to a lot less depending on how many shots you take on a trip, I have never shot more than 10 shots on a trip so even a 150 bar fill still gives 25 shots if needed.
     

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