Delrin Valve Head extender
R&L Extreme Valves have a very small piece of delrin or nylon or something stuck down in the hole of the delrin valve head. It is used to extend the total length of the valve stem from tophat to delrin.
Maybe the holes are drilled too deep and these are used as adjusters.
Anyhow, I have an R&L Extreme valve with a Tagdagger slotted delrin, which needs something down the hole so the tophat gap can be larger.
Any ideas ?
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No its a standard Hi-flo. Instead of dots that one has the delrin seal turned down 1.5mm too extend the stem.
TagDagger – Is that an R&L Extreme Valve? If so there is no way mine would screw out that far. Max would be .120 with the dot in the delrin.
Moneyshot – if you were to take a standard valve stem and port the hole until the hole is inline with and touching the stem section that goes into the delrin, then that is the R&L Extreme. To say it another way, sideways mill inward on the valve stem perpendicular to the hole, opening up more of a hole flush against the stem diameter that is where the delrin plugs on.
That won’t make it an R&L Extreme valve as I don’t know what other material the stem and tophat are made of and tophat threading and wall thickness are different from a stock valve.
I think the TagDagger spring and nut are an equal need if you go with a R&L Extreme valve. Buy them both (maybe need a heavier hammer then stock) and you are into the 60 to 120 FPE range. Stock hammer may have you at 45 to 105 FPE. (26 gr vs 68 gr – Powerwheel 0/0 vs. 13/0)
PS: Buy R&L bonnet wrench and TagDagger valve removal tool.
Here is a pic of a fully extended tophat on an arrow conversion. For pellets this setting would be wasting air, but the arrows need the extra air to fill the void inside the arrow for maximum energy to launch.
The dots or turning down the top portion of the delrin seal both have the same effect of giving a higher top hat setting.
If you look a few pages back in this section (mods) you will find a full set of photos. The topic was started by Hoot.
this shit is driving me up a fukkin wall. 👿 can one of you rotten pricks post a pic and/or measurements of these stems? are they really that much more substantial than a ported and polished AF stem? RC, youre a big fan apparently, show me what these damn things are about…
that lousy bastard randy displays a beer tap as the extreme valve, strange sense of humor…
It’s a different valve stem than AF’s stem..
Why is that? Are you running out of threads on tophat? All I know is .105″ is the largest gap I can get with out machining.
The delrin hole dot should give me an additional .040 of tophat gap, otherwise the max setting on the R&L Extreme valve with TagDagger sloted delrin is .088.
How does that give you more room? You can only set the tophat out until it is against the breech. Are you not going to latch the breech? If you want more travel you need to take some material off the tophat so there is more gap between it and the brass. It gets to a point where you are just wasting air. On the Blod valve, if you set it up with the tophat against the breech it is .185″ movement. So I made a spacer and now it only moves .105″ and there was no differences in velocity. All my tanks are set the same at around .100″ so there is no gap in the breech.
I’m getting a bonnet wrench from Randy, so maybe he will give up some dots.
Thanks
Those delrin seals are drilled to deep. Next time you order something from Randy, ask real nice and he’ll likely fix you up with some of those little dots to jack the stem up some.
You could also make you own if you could find some plastic sheet with adhesive on one side and the right size steel tubing to use as a punch to make some of those elevating dots yourself 😀 The adhesive side keeps the dots from falling out of the hole when you press in the stem.
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i knew id get an answer if i started speaking the language(assholese) 😆 thanks, fellas…