33/64" fitting question

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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squnto
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will this slide valve:

http://www.ebay.com/itm/33-64-Pneumatic ... 5ae3de3c4c

fit into a standing 1/2" fitting? The difference is so small that it just might work...

thanks in advance!
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JDP12
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it's equivalent to 1/4" BSPP thread.
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squnto
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American fittings are npt, correct? is bspp at all compatible with npt fittings, or would i have to buy some crazy ass fitting to bridge the two?
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JDP12
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ya america typically uses NPT. BSPP and NPT are NOT COMPATIBLE. you will have to get an adapter- www.mcmaster.com sells them.
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squnto
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thanks mate :)

workin on an all metal semi auto marble gun that this'll be lush for!
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MrCrowley
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JDP12 wrote:ya america typically uses NPT. BSPP and NPT are NOT COMPATIBLE. you will have to get an adapter- www.mcmaster.com sells them.
Well they thread together, you might need to use a bit more teflon tape than usual to get them to seal. At high pressures, epoxy or thread seal may be required for a seal.
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JDP12
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yes... however the threads on that slide valve are BSPP, so they are parallel threads, whereas NPT are tapered. personally I'd recommend just getting the adapter, as i hate jury-rigging threaded fittings. just my 2 cents.
"Some say his pet elephant is pink, and that he has no understanding of "PG rated forum". All we know is, he's called JSR. "
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