Unusual PVC fittings

Post questions and info about safe and unsafe materials that can be or should not be used to construct a launcher. Also post things about different universal accessories for your cannon (breech loader, muzzle break, etc.)

Postby machinist » Fri Feb 23, 2007 10:43 am

Note the “7 waysâ€Â
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Postby sgort87 » Fri Feb 23, 2007 10:52 am

If it opens anything close to fast, it is not a gate valve. Gate valves are those turn-forever-till-your-garden-hose-finally-starts-letting-water-run valves. They open REAL slow. You are probably talking about a butterfly or ball valve.

We would use these valves, but the problem is, diaphragm valves perform better.

And yes, we know of the 7way fittings, but most of us don't see a big use for them. There's a lot of custom machining involved to make good use of those 7-ways unless it's just a simple 7 shots all at once. And even then, it's kinda lame.
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Postby boilingleadbath » Fri Feb 23, 2007 3:54 pm

Not all gate valves are the screw kind, sgort.
For instance, my dad has a couple 5" stainless steel gate valves for high vacume uses. They are actuated by throwing a lever.
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Postby BewareOfDog » Sat Feb 24, 2007 7:52 am

Hey!- Thanks for the info! 8)

I doubt if most of these fittings are pressure-rated, but they'd be great for a combustion or a project.
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Postby An Apple Pie » Sat Feb 24, 2007 10:58 pm

Those are pretty neat.
Sgort-Those are indeed Gate Valves, or at least the website lists them as such.

These snap tees would also be incredibly handy for handles.
<img src="http://www.spudfiles.com/uploader/uploadFiles/SnapTsthumb.jpg">
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Postby sgort87 » Sun Feb 25, 2007 12:35 am

After he posted the pictures I realized they were gates. They are still slow, but nice and compact, well, short.

I'm gonna order a couple of those 7-ways. I got an idea...
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Postby clide » Sun Feb 25, 2007 1:05 am

The 7-way reminds me of the Vulcan that chewy built. It used a fitting that looked much like that, but had some mechanics in it that would automatically switch outlets each time it was pressurized. I was used in sprinkler systems so that you could run several zones with one valve.
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Postby Velocity » Sun Feb 25, 2007 1:16 pm

Clide: I believe he used an index valve on that gun?
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Postby clide » Sun Feb 25, 2007 4:26 pm

Ah yes, an index valve, I couldn't remember the name.
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Postby GalFisk » Sun Feb 25, 2007 4:40 pm

I remember that one, I think I still have some of his pictures of the innards of the valve lying around if anybody's interested.
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