Questions On Tank Pressure
Posted 01 May 2007 - 07:54 PM
When I run through the calculations, I find that the ideal length of 3/4" PVC for the optimum air volume for 12" 17/36" brass is about 5", but at the pressure I plan to use it should be about 1.5". Therefore, this is my planned tank volume (I'm using 3/4" because this is what I'm using as a valve). Does this all seem right? I'm trying to both have this get the approximate range and accuracy of a singled AT3K, and not have it blow up in my hands.
For maximum efficiency?
1. Pump up. Count how many pumps.
2. Keep going until you hear a loud "bang".
3. Subtract one pump from the total. Rebuild your air bladder.
There you go.
Posted 01 May 2007 - 08:10 PM
Keep in mind that even the most robust manual bike pump imaginable is incapable of filling any tank beyond 70PSI. Which is still well below the maximum pressure rating of PVC pipe (120PSI). Even the strongest person I can imagine is not capable of physically overcoming that pressure level by using a standing pump.
A pressure gauge is still a good idea and you can by them for as little as $6 in the pressure range you're going to be working with.
Edited by CaptainSlug, 01 May 2007 - 08:12 PM.
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