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-   -   Cup seal and valve (http://www.spyder.tv/forums/showthread.php?t=19725)

XSiv Force 04-03-2009 06:22 PM

Cup seal and valve
Is there a reason the the cupseal and the valve pin are two pieces instead of like a cocker with a single piece? Is it alright if the cupseal is made out of cobalt steel? Im trying to make a pmp valve pin for another piranha/spyder pump

bigred76 04-03-2009 07:55 PM

Re: Cup seal and valve
The reason is that delrin, which makes up the cupseal, is a very brittle product. As it wears, you need to be able to replace it. Thus, replacing just the cap of it is a lot cheaper than the entire thing. You could create an Autococker cupseal/valve stem for the Spyder, and it'd probably work just fine.

XSiv Force 04-04-2009 04:16 AM

Re: Cup seal and valve
thats what we were thinking but werent forsure thanks bigred

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