Info needed on some sort of metric sperical inverted flare fitting
Info needed on some sort of metric sperical inverted flare fitting
(OP)
Hi all,
I have a hose off an air compressor that has come into my possesion. The compressor was free and now I know why. It's one of those wheel around portable units, but a bit heavier duty that the ones you find today. It's missing some pieces and to date I haven't found a manufacturer name. Here's my dilema: the approximately 1/4" hose that connects the compressor head to a manifold is rotted. The manifold has a compressor pressure gauge, regulator, regulated pressure gauge, pop-off valve, and a tank output. The fitting on this hose appears to be some sort of metric sperical inverted flare. It's a swivel fitting with female threads. I believe it's a M14 X 1.0 thread. I can confirm later tonight when I take a better look at the male threads. The flare portion I guess you would call male and is definately sperical. I stopped by Tractor Supply today and found a 1/4" NPS to NPT adapter fitting that seems to fit the sperical flare well, but the threads are too small and too coarse. I can change the fitting in the compressor head, but the manifold is white metal/zinc die cast. I could also make a new manifold, but am trying to avoid that much work. Any thoughts as to what this fitting is?
Thanks,
Aaron
I have a hose off an air compressor that has come into my possesion. The compressor was free and now I know why. It's one of those wheel around portable units, but a bit heavier duty that the ones you find today. It's missing some pieces and to date I haven't found a manufacturer name. Here's my dilema: the approximately 1/4" hose that connects the compressor head to a manifold is rotted. The manifold has a compressor pressure gauge, regulator, regulated pressure gauge, pop-off valve, and a tank output. The fitting on this hose appears to be some sort of metric sperical inverted flare. It's a swivel fitting with female threads. I believe it's a M14 X 1.0 thread. I can confirm later tonight when I take a better look at the male threads. The flare portion I guess you would call male and is definately sperical. I stopped by Tractor Supply today and found a 1/4" NPS to NPT adapter fitting that seems to fit the sperical flare well, but the threads are too small and too coarse. I can change the fitting in the compressor head, but the manifold is white metal/zinc die cast. I could also make a new manifold, but am trying to avoid that much work. Any thoughts as to what this fitting is?
Thanks,
Aaron





RE: Info needed on some sort of metric sperical inverted flare fitting
The only difference between 1/4" BSP and 1/4" NPT is the flank angle on the thread form.
1/4" BSP will screw into a 1/4" NPT hole and vice versa, but it will be a little tight.
I cannot think of any other thread forms that are coned...?
Adrian
RE: Info needed on some sort of metric sperical inverted flare fitting
RE: Info needed on some sort of metric sperical inverted flare fitting
The only M14 swivel thread that has a male(inverted) cone is either...
6mm S series compression fitting
or
8mm L series compression fitting
The thread on both of these fittings is M14 X 1.5
If this is the fitting it should have a 22 degree taper/cone...
I really cannot think of another type of metric fitting that has a cone...
RE: Info needed on some sort of metric sperical inverted flare fitting
Document number E-SROV-TS009-E
Youmight find it on the Eaton website, or get from a loacal Aeroquip dealer.
Used to be red, now its blue, is about46 pp, and pocket size. It identifies fro various countries.
DIN7631 has a M14 x 1.5, cone seal, DIN 3902 has same threads, French GAZ, japanese JIS30 degrees, etc.
Assuming its a cheaper homeowen unit, is itmade in China metric?
Can you just take the block off and retap to NPT? I hate NPT wiht a passion, but being able to tap threads in the field with simple tools is it's one saving grace.
good luck.
kcj
RE: Info needed on some sort of metric sperical inverted flare fitting
Aaron