Rich_p 23 Posted January 12, 2009 I have had quotes from a couple of places for lever type bias valves. What size is the norm for brake piping on pugs? One place gave this quote “ The unit has 1/8 27npt threads, the union converts to 3/8 24npt inverted flair.” Another mentioned These come with the std M10 thread as well What’s the norm for pug? Share this post Link to post Share on other sites
marksorrento205 80 Posted January 12, 2009 M10 I would say. Thats the size of the calipers etc. Share this post Link to post Share on other sites
Miles 331 1 Cars Posted January 12, 2009 M10 for 98% of the brake system, The cheap Bias valves normally come with odd imperial size's and generally leak, I remember when I bought a cheap one I got fed up with the drip's and bought a AP one at the other end of the scale Share this post Link to post Share on other sites
Kartman205 0 Posted January 12, 2009 I have had quotes from a couple of places for lever type bias valves. What size is the norm for brake piping on pugs? One place gave this quote “ The unit has 1/8 27npt threads, the union converts to 3/8 24npt inverted flair.” Another mentioned These come with the std M10 thread as well What’s the norm for pug? Tilton ones are imperial thread as they are American, but come with adaptors to accept metric unions. As you will no doubt be making up new pipes, just use the appropriate unions straight into the valve, theres nothing wrong with imperial unions, BUT, they use a different shaped former to create the flair on the pipe end, if formed wrong, then they can possibly leak. Share this post Link to post Share on other sites
philfingers 5 Posted January 12, 2009 (edited) Tilton ones are imperial thread as they are American, but come with adaptors to accept metric unions.As you will no doubt be making up new pipes, just use the appropriate unions straight into the valve, theres nothing wrong with imperial unions, BUT, they use a different shaped former to create the flair on the pipe end, if formed wrong, then they can possibly leak. I stand corrected but mine is a Tilton lever one and is M10, it's stamped up metric too. I did have a compbrake one but it had very fine threads which I didn't like, it came with corrective unions but I wasn't keen on it. The tilton one is better made I'm sure Edited January 12, 2009 by philfingers Share this post Link to post Share on other sites
mrswampy 0 Posted January 12, 2009 Willwood also use an imperial thread wouldnt say they are cheap quality Share this post Link to post Share on other sites
Miles 331 1 Cars Posted January 12, 2009 Titlon come with both option's of thread, Metric and Imperial. I must say out of the cheaper ones the Tilton are very good but still away from the quality of the AP one's but these are another £50.00ish quid, Share this post Link to post Share on other sites
