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PF vs. BSPP?

6 REPLIES 6
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Message 1 of 7
TheRham
1579 Views, 6 Replies

PF vs. BSPP?

Trying to find what (if any) is the difference between PF1/8 (Japanese) threads and G1/8 (BSPP).  Anyone know a whole lot about Japanese threads?

 

Edited by
Discussion_Admin

6 REPLIES 6
Message 2 of 7
Paul-Mason
in reply to: TheRham

 probaly just like the BSPP, like evrything else, and gave it ther owne standard name

 

But you can try here http://www.gewinde-normen.de/en/whitworth-pipe-thread.html

 

 

Edited by
Discussion_Admin

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Inventor 2023 Pro
HP Z420 workstation
Xeon 3.7Ghz CPU 8 Cores, 64 GB Ram
64bit (The Garbage known as) Windows 10 Pro
AMD FirePro V3900 (ATI FireGL) (1GB RAM)
=================
Ashington Northumberland (UK) ~ Home to the WORLD FAMOUS Pitman Painters Group
Message 3 of 7
TheRham
in reply to: TheRham

From what I've been able to find, sounds like it's the same, save for a 30 deg seat.

Message 4 of 7
mcgyvr
in reply to: TheRham

BSPP/BSPF is equivalent to JIS PF

 



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Inventor 2023 - Dell Precision 5570

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Message 5 of 7
TheRham
in reply to: mcgyvr

So, this all begs the question... why is the customer's gauge not matching our threads... something is fishy...

Message 6 of 7
mcgyvr
in reply to: TheRham

Did you gauge the threads prior to shipment to ensure they were machined properly?

Maybe one is using a tapered gauge?



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Inventor 2023 - Dell Precision 5570

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Maybe buy me a beer through Venmo @mcgyvr1269
Message 7 of 7
TheRham
in reply to: mcgyvr

Well, not me personally... not my place, really.  But I'm sure they did.  I'm thinking our customer doesn't have the thread (or gauge) they think they have... some kind of oddball JIS variant monster or something.  I REALLY am hoping they aren't using a tapered gauge... funny as it might be.

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