Fast flow valve

[etiam viviens]

I have two rapids without a regulator.
One has an power valve but I do not know if it has an fast flow adaptor.

Is there a way you can tell without removing the adaptor but looking from the buddy bottle side.

[Squinty]

Believe you have a Raw bottle holder/QF...do the bottles have valves??

If they are not regulated then they are fast-flow, same thing non-reg/fast-flow

the fast-flow push pin disc will have holes in it pic 1
the regulator disk will have two dimples no holes and the inlet (reg) body will have a small hole that allows the reg-core to move pic 2

[angrybear]

Yes, how many hole's there are to let the air through the brass bottle pin.
std =1 centre hole, FF = 6 holes around a solid centre. RAW FF = 2 holes & 2 wide slots

Sorry it's a bad photo

[etiam viviens]

Thanks for the quick answer, both my rapids have the 6 holes so a fast flow adaptor.

[KevG]

also with a reg you have a atmospheric bleed hole on the reg body.were as fast flow does not
KevG

[etiam viviens]

If I wanted to place an Lane regulator mk10  between the bottle and the adaptor would there be an advantage or disadvantage in regards to FF flow or other adaptor.

[KevG]

will get rid of power curve but you would need to check your firing valve body to check the front port size.they should be 6mm on a reged set up,sometimes fast flow sets ups can be smaller 5 mm to 5.5mm
KevG

[KevG]

its going to send your bottle way forward though doing it that way
KevG

[etiam viviens]

I know it is going to send the bottle way forward butt that is acceptable.
at the moment I have a RAW power valve installed so I assume this will give some extra air.
It is an .25 that does about 75 joule after filling the bottle 200bar.

I am hoping that a regulated pressure of 155 bar will give me a good 24 shots with .25 grain JSB  at 285 m/sec and 67 joule.

Next upgrade will be an carbon 500cc bottle

[Squinty]

one gain...
as the reg is separate from the fast-flow inlet there will be a little extra volume in the lower plenum.
then.. if you remove the QF and use a standard fast-flow you could also fit a  pre-chamber extension?

Or you could go for a Huma reg which may fit your  RAW Theoben / HM type QF

[etiam viviens]

I have no Quickfill this is also a reason why I consider an Lane MK10 Regulator.
the bottles have valves, I do have an hole in the stock for an quick-fill but do not have one.

I am more interested in a constant speed and not in power, I am happy with the around 65 joule.

The lane comes with an plenum in different sizes would a pre chamber extension help a lot?

[Squinty]

My error, two guns with different specs?
increasing the plenum size gives more volume to play with.
benefits ;
the gun isn't emptied on each shot and stops the gun from running off an open reg.
The HM-X for example is a long block - which is essentially what you're trying to reproduce by increasing volume.

it lowers the recharge pressure drop, same amount of air used but from a larger reservoir.
The reg isn't subjected to longer cycling and recharge time is reduced.
Aids consistency.