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  #1  
Old 04-03-2009, 06:22 PM
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XSiv Force XSiv Force is offline
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Default 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
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Old 04-03-2009, 07:55 PM
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Default 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.
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Old 04-04-2009, 04:16 AM
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XSiv Force XSiv Force is offline
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Default Re: Cup seal and valve

thats what we were thinking but werent forsure thanks bigred
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