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Old 01-04-2013, 10:34 AM   #11 (permalink)
I am stuck on bandaid...
 
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IIRC the action markers' pump gun adjusted velocity with the valve spring. It can be done.
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Old 01-04-2013, 10:40 AM   #12 (permalink)
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Quote:
Originally Posted by JaKaL View Post
IIRC the action markers' pump gun adjusted velocity with the valve spring. It can be done.
Perfect. Thanks mate.
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Old 01-04-2013, 11:49 AM   #13 (permalink)
I am stuck on bandaid...
 
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You putting something in a rifle stock? Kinda the only reason I can think of to flip the adjustment point like that...
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Old 01-04-2013, 04:20 PM   #14 (permalink)
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something like that. reversing the entire valve direction so that the hammer is in the front.
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Old 01-04-2013, 07:54 PM   #15 (permalink)
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THANK YOU.

The only downside to this that I could see is that the usage of air would reduce the efficiency of the 12grams used.

I'm going to brainstorm an alternative type of valve I think.

Or I could always use a nelson type.
Balances valves need not be any less efficient air-wise than normal unbalanced poppets, but like I said they're significantly harder to setup, especially when you're dealing with 12g.
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Old 01-04-2013, 08:20 PM   #16 (permalink)
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I looked at it and from what I see it has a sealed hammer and a "normal" valve, with the same pressure behind each?
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Old 01-04-2013, 11:35 PM   #17 (permalink)
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Are you describing the balanced valve? A balanced valve is set up so that the force applied to the rear of the cup seal - the force holding the valve shut - is counter balanced, as with a spool valve (think autococker three way, where the valve isn't forced in any one direction when under pressure, because equal force is being applied to each side).

A balanced valve is more or less a normal valve stem and cup seal (or equivalent) combined with a piston. When closed or at rest the pressure keeping the cup seal closed off is met with an equal force in the opposite direction. They counter balanced each other, or cross eliminate each other, for lack of a better description.
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