Quote Originally Posted by helihurley
Hi all. I hope this forum is as friendly as it seems from the outside :wink: .
Im extra stuck on the following and any info would be greatly appreciated.
1) Is this diagram correct as a start?
It is correct, but you lack 2 parts. Dump valve and Pressure relief device (safety valve)
2) What type of hose can i use on FP and where can i get it from can only find stuff rated 25bar im after ½ inch sizing all round and also need all the various fittings?
I normaly use hydralic polymer , aramide reinforced hose. It's pressure rating is a lot over what we need, and it is light and can accept narrow bends. In other parts I use rigid steel piping (standpiping?) or even milled and turned collectors. Lighter and more purpose build (and therefor smaller) than use all steel hydraulic connectors and T pieces.
I'm lucky in that part that I worked in a hose manufactoring firm, and have good contacts there.
3) Is the two buffer tanks big enough i read something about it needing to be 3 time volume of ram? How do i find volume of the tanks out?
A CO2 tank has 1.5 times volume compared to rated weight. 20oz=600grams= 900 cc.
The 140mm bore 120mm stroke ram has a volume of 1.85L, so your 2 20oz tanks are on the small side.
4) What fitting could i use to fit on paintball/buffer tanks so its open/ not regulated could i just drill the centre of the PB regs?
Remove the valve, that's obvious, as the valves have a let trough of next to nothing.
If you can find connectors, you can fit those directly in the buffertanks. Other option is to rethread the neck with 3/8bsp or drill it out ,and rethread it with 1/2 bsp, and have then recertified.
5) What is the best way do the exhaust? I read about adding a QEV how would this operate ie no when to open/close?
Never seen a FP QEV, and it operates like a piloted 3/2 valve. Meaning you need a FP capable QEV and small 2/2 valve to use it. Best bet is to use a third Burkert.
6) With the 5404 burket valves what one (2) should i get
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Normaly closed 1/2 bsp, brass body.