qev question
- Lockednloaded
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a bigger valve can always increase flow in my experience, but have you looked at the huge jump in price from 3/4" to 1" its a good 70$ wasted if you ask me. If you've got money to blow go for the bigger valve, but few spudders do so i'd go 3/4"
i get what you guys are saying about the price, but if the surface area of 3/4" PVC is ~.53 square inches, does a 3/4" qev have more flow than that? because it seems like a waste to have a valve with more flow than the barrel would allow
- jackssmirkingrevenge
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grock wrote:i get what you guys are saying about the price, but if the surface area of 3/4" PVC is ~.53 square inches, does a 3/4" qev have more flow than that? because it seems like a waste to have a valve with more flow than the barrel would allow
I would say the flow would be equivalent to the barrel.
hectmarr wrote:You have to make many weapons, because this field is long and short life
Slightly off topic, but in a highpressure mini(JSR) you can put a plug in "sw" and the gev becomes a mini coax chamber...
My Cannons can be found by clicking the following link.
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http://www.spudfiles.com/forums/viewtop ... tml#256896
- POLAND_SPUD
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well yeah but you can also feed air via SW2 and put a spring behind the piston to build JSR's farting machine
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- jackssmirkingrevenge
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You spend years of R&D perfecting the contant flow full auto valve, and all they remember is the farting machine *sigh*POLAND_SPUD wrote:JSR's farting machine
hectmarr wrote:You have to make many weapons, because this field is long and short life
And Fullstop or Not, A certain mod will ALWAYS be MCCrowley... :headbang:jackssmirkingrevenge wrote:You spend years of R&D perfecting the contant flow full auto valve, and all they remember is the farting machine *sigh*POLAND_SPUD wrote:JSR's farting machine
My Cannons can be found by clicking the following link.
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http://www.spudfiles.com/forums/viewtop ... tml#256896
- Technician1002
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I used to think that until I started playing with bigger stuff. In an air cannon the high speed flow is in the area of the valve. The lower the turbulance, the higher the flow.grock wrote:i get what you guys are saying about the price, but if the surface area of 3/4" PVC is ~.53 square inches, does a 3/4" qev have more flow than that? because it seems like a waste to have a valve with more flow than the barrel would allow
Using a valve at twice the recommended size means the flow velocity is half for the same flow voulume. This drops the loss in the valve to 1/4 due to turbulance. Believe it or not, slow flow through the valve is a good thing as long as it is high volume. Let the gas enter the barrel under full chamber pressure and expand where it does the most good. The higher the force on the projectile the better.
i cant really answer your question but if i were to guess i'd say that a 3/4 QEV could use the full volume of a 3/4 inch barrel
offtopicish:it seems alot of ppl are not even answering the question, they just give advice on a valve you should choose. i agree tho either get a 3/4 QEV or if you want more power get a small home made piston (1")
offtopicish:it seems alot of ppl are not even answering the question, they just give advice on a valve you should choose. i agree tho either get a 3/4 QEV or if you want more power get a small home made piston (1")
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