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Barrel Sealing vs. Chamber Sealing

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Barrel Sealing vs. Chamber Sealing

Unread postAuthor: demilus » Thu Apr 05, 2007 3:29 pm

Is there any difference between a chamber sealing and a barrel sealing piston? I am talking performance wise. The piston being in a T fitting of course.
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Unread postAuthor: MrCrowley » Thu Apr 05, 2007 3:32 pm

Search!
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Joking. But do search, there are close to 48 topics on this subject on these forums....please use the search thingy thats why its there. This is been covered many times and the outcome is usually Barrel sealers are better as they peform better either with faster opening times or bigger flow or something along those lines and they're easier to build with the option of O-rings or no O-rings.
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Unread postAuthor: Scope » Thu Apr 05, 2007 6:38 pm

There both about equal its all about craftsmanship and use...
Chamer sealers are higher flow but slower
Barrel sealers are lower flow but faster
it depends on application and skill
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Unread postAuthor: clide » Thu Apr 05, 2007 11:18 pm

Scope wrote:...Chamer sealers are higher flow...


Do you have a reason behind that?
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Unread postAuthor: frankrede » Fri Apr 06, 2007 1:05 am

chamber sealers have more dead space.
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Unread postAuthor: willarddaniels » Fri Apr 06, 2007 10:21 am

frankrede wrote:chamber sealers have more dead space.

you beat me to this point... I think this is the single most weighty factor folks use when deciding which to use. Orientation doesn't typically matter since it is a T and speed of opening is determined by craftmanship and design.
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