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CPVC Piston

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CPVC Piston

Unread postAuthor: PVC Arsenal 17 » Mon Dec 25, 2006 11:55 pm

Recently I found that 1/2" CPVC fits very well inside 1/2" PVC.

So, I'm looking for a CPVC plug to make a piston with. However, I need the wall of the plug to be at the solvent end, rather than the hex end. If anybody has used DURA plugs, you'll know I mean.

My question is: does anybody know of a such a plug? And where can I find one.
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Unread postAuthor: mark.f » Tue Dec 26, 2006 8:25 am

That's becuse CPVC is almost like copper, (in which 1/2" pipe size has a 5/8" OD... the same ID as 1/2" SCH-40 PVC). I've looked into this for certain autoloader and breech loader ideas.

Just plug up the CPVC with some epoxy.
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Unread postAuthor: frankrede » Tue Dec 26, 2006 2:34 pm

cpvc is measured in inner diameter?
Thats cool, hmm, that would sure make Piston valves easier/
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Unread postAuthor: Bluetooth » Tue Dec 26, 2006 2:40 pm

You mean that cpvc is measured in outer diameter, right? That is kinda cool but I don't see much cpvc where I live.
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Unread postAuthor: frankrede » Tue Dec 26, 2006 2:55 pm

Well pvc is measured in outer diameter, not sure on cpvc
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Unread postAuthor: Bluetooth » Tue Dec 26, 2006 4:10 pm

Normal PVC is measured in ID. If you measure the ID of 1" sch 40 PVC it is 1".
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Unread postAuthor: CS » Tue Dec 26, 2006 5:30 pm

PVC nominal pipe size is more so realitive to the to according pipes ID, not the ID. Below I have made a chart to address the issue with actual figures.

<table cellspacing="1" cellpadding="1" border="3"><tr align="center"><td>Pipe Size</td><td>OD</td><td>ID</td></tr><tr align="center"><td>.5"</td><td>0.840</td><td>0.602</td></tr><tr align="center"><td>.75"</td><td>1.050</td><td>0.804</td></tr><tr align="center"><td>1"</td><td>1.315</td><td>1.029</td></tr><tr align="center"><td>1.25"</td><td>1.660</td><td>1.360</td></tr><tr align="center"><td>1.5"</td><td>1.900</td><td>1.590</td></tr><tr align="center"><td>2"</td><td>2.375</td><td>2.047</td></tr><tr align="center"><td>2.5"</td><td>2.875</td><td>2.445</td></tr><tr align="center"><td>3"</td><td>3.500</td><td>3.042</td></tr><tr align="center"><td>3.5"</td><td>4.000</td><td>3.521</td></tr><tr align="center"><td>4"</td><td>4.500</td><td>3.998</td></tr></table>

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Last edited by CS on Tue Dec 26, 2006 5:40 pm, edited 3 times in total.
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Unread postAuthor: PVC Arsenal 17 » Tue Dec 26, 2006 9:33 pm

Why are you guys going on about ID of pipe?
I asked if there was a plug that would work for this.

I'll just do as mark said and plug a peice up with epoxy. It should make a dencent piston.
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Unread postAuthor: frankrede » Wed Dec 27, 2006 2:43 am

oh thanks pimp.
Ok, so its not exact I.d.
Sch-80 is thicker inside right?
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Unread postAuthor: killagorrila99 » Wed Dec 27, 2006 3:33 am

Sch-80 is thicker inside right?



Yep. And just so this post isnt totally useless, Sch 80 is safer 8)
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