BSP or BSPT
BSP or BSPT
(OP)
Hi,
I want to tap an oil gallery and insert a threaded bung in it rather than a push fit bung. Just wondered what peoples opinions are, should I just tap 1/4 bsp and screw in a 1/4 bsp blanking plug until it goes tight, or should I tap 1/4 bspt and put a taper bung in..? Does it make any difference?
Basically I'd rather just tap 1/4 bsp as I have a 1/4 bsp tap to hand...
Sorry if it's a bit basic...
I want to tap an oil gallery and insert a threaded bung in it rather than a push fit bung. Just wondered what peoples opinions are, should I just tap 1/4 bsp and screw in a 1/4 bsp blanking plug until it goes tight, or should I tap 1/4 bspt and put a taper bung in..? Does it make any difference?
Basically I'd rather just tap 1/4 bsp as I have a 1/4 bsp tap to hand...
Sorry if it's a bit basic...





RE: BSP or BSPT
BSPT is tapered, and uses the taper to jam and seal.
I think there is a combination that can still seal, like >>maybe<< a BSPT plug in a BSP tapped hole.
RE: BSP or BSPT
I guess if I only tap the gallery 15mm deep and wind the socket set screw in, until it gets tight where the thread has stopped and put a bit of hydraulic seal or loctite in it it's got to be ok?
Does anyone else know about that bspt bsp combo?
RE: BSP or BSPT
Regards
pat pprimmer@acay.com.au
eng-tips, by professional engineers for professional engineers
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
RE: BSP or BSPT
Using Locktite or some other similar thread sealer is absolutely vital with a tapered thread, or it will slowly weep oil forever.