I need hose and fitting help
I need hose and fitting help
Author
Discussion

Afghanwarrior

Original Poster:

29 posts

96 months

Friday 29th September 2017
quotequote all
Hi I'll get straight to it I have a 15 mm metal pipe and I need to put an oil hose on it what size hose should I use?
Or do I chop it off and weld a 16mm push on fitting, it must be steel tho?

GreenV8S

30,956 posts

301 months

Friday 29th September 2017
quotequote all
The bore of the hose should be the same as the OD of the pipe it is going to fit over. If it's pressurised you would be advised to provide a bead on the end of the pipe. (Options to do that would depend on the material.)

Various automotive aftermarket suppliers sell fittings to do this type of thing and you may be able to find a fitting with a compression joint to fit the pipe at one end, and a hose barb or standard joint fitting at the other.

Bdevo3

478 posts

106 months

Friday 29th September 2017
quotequote all
Depending on the wall thickness of the metal pipe my first inclination would be to get a suitable tap or die and thread it internally or externally to have a screw on or in fitting with a barb for the flexi hose

Afghanwarrior

Original Poster:

29 posts

96 months

Friday 29th September 2017
quotequote all
Bdevo3 said:
Depending on the wall thickness of the metal pipe my first inclination would be to get a suitable tap or die and thread it internally or externally to have a screw on or in fitting with a barb for the flexi hose
Too thin for that

Bdevo3

478 posts

106 months

Friday 29th September 2017
quotequote all
Afghanwarrior said:
Bdevo3 said:
Depending on the wall thickness of the metal pipe my first inclination would be to get a suitable tap or die and thread it internally or externally to have a screw on or in fitting with a barb for the flexi hose
Too thin for that
What about flaring the end of the metal pipe a touch so a hose and clip have something to grip

Afghanwarrior

Original Poster:

29 posts

96 months

Saturday 30th September 2017
quotequote all
Bdevo3 said:
What about flaring the end of the metal pipe a touch so a hose and clip have something to grip
Flare it upto 16mm?

GreenV8S

30,956 posts

301 months

Saturday 30th September 2017
quotequote all
Afghanwarrior said:
Flare it upto 16mm?
Should be possible but how easy would depend how thick it was. If it's steel you also have the option of adding a weld bead. But the bead is only to stop the hose clip from sliding off and you shouldn't rely on that to seal - pulling a 16mm hose down onto a 15mm pipe is unlikely to seal reliably and you should use a pipe/hose combination that fit properly. That means the hose bore should match the pipe OD.

Afghanwarrior

Original Poster:

29 posts

96 months

Saturday 30th September 2017
quotequote all
Ive decided to chop it off and weld a barbed fitting on to it. Thanks for your help guys