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Coolant pipe seals

Coolant pipe seals

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George Jervis08/11/2018 13:03:45
40 forum posts
41 photos

Hi everyone,

I have recently brought a coolant pipe (epay) for my lathe, so I can replace the leaking plastic thing I have. I need to replace the seals on the elbow joints but for the life of me i can't seem to find any where to buy them?

Would any one be able to offer any help please?

George

Jeff Dayman08/11/2018 13:28:08
1287 forum posts
33 photos

Coolant pipes and other accessories on lathes are not universal. It would help to know your lathe's make and model for a forum member to be able to help, from experience with lathes of the same make and model.

If the elbow seals are o-rings you can get them at any seal or bearing supply house, or the Bay of E. If you get seals made of Viton elastomer ( rather than the more common neoprene rubber ones) they are extremely chemical resistant and will take high temps (if placed too near a lamp for example) on a machine.

David George 108/11/2018 13:29:02
avatar
510 forum posts
184 photos

Hi George any information and pictures would help as to what seems you need.

David

George Jervis08/11/2018 13:38:35
40 forum posts
41 photos
Hi
I've put a picture in my gallery and I've just measured the diameter of where the pipe goes into the elbow and it is roughly half inch. The rubber seal looks like it's supposed to pass partly through the clamping nut and squashed into place but leaving the elbow joint partly flexible.
I'm not having much joy putting pictures on here but their is one in my album
George
George Jervis08/11/2018 14:50:06
40 forum posts
41 photos

img_20181108_124636.jpg

Grizzly bear08/11/2018 18:23:01
184 forum posts
6 photos

Hi George,

Will this help?

**LINK**

Bear..

George Jervis08/11/2018 18:29:05
40 forum posts
41 photos
Hi Bear,
Thank you for your input not a great help as the elbow joint has to be flexible but the the link would be very useful when I need to solder copper pipe and she did a very good tidy job too.
George
George Jervis09/11/2018 11:04:17
40 forum posts
41 photos
Well today I've been out and about to my local plumbers and electricians etc but still no luck trying to get hold of this seal, I've searched on the internet with no luck either. I've even tired contacting myford via email and phoning but had no reply? Surely their must be a company that stock a seal

George
Neil Greenaway09/11/2018 11:29:30
63 forum posts
3 photos

I take it the gland nut butts against the steel shoulder and then the brass insert fits into the elbow bore? I have seen some connections like this with a gland nut having an o-ring on the groove at the steel/brass joint area and a plastic (normally PEEK) back-up ring to allow actual tightening of the joint and compresion of the o-ring whilst allowing flexibility in the joint. The back-up rings would be a plastic ring with a split to allow it to be pusted on to an oversize OD and then set inside a groove - would be easy to turn from some durable plastic and then form a scarf joint with a sharp knife blade. Make a pair of backup rings and use an o-ring that will crease a good sealing fit on the OD of the pipe and the bore of the elbow I hope this makes sense?

Neil.

Grizzly bear09/11/2018 15:27:53
184 forum posts
6 photos

Food for thought

https://www.roviproducts.com/coolant-nozzles-extension-tubes-accessories/

Bear..

George Jervis10/11/2018 14:30:20
40 forum posts
41 photos
Hi Neil,
I found in my search that you were not far off right, instead of plastic they were original using rubber washer followed by a short brass/copper sleeve that sat in a recess allowing it to be clamped up but also then be flexible my issue is the pipe that goes inside has been warn and rounded up. Trying to mount this in the chuck and turn this parrel is going to be fun 🤔 but my first try was a rubber grommet and a couple of thick washers so far it seems to have worked so keeping my fingers cross for now 🤞
Many thanks again to the collective knowledge of the forum
George

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