Disposable Gas Canister Regulator O ring/ rubber seal?

[dave_sussex]

Hi all,

I have a disposable gas canister regulator that is fine apart from the rubber seal, it's got mashed from use, anyone know where i can get a new O ring/ rubber washer?

I have tried cutting a piece of rubber to fit but it's so fiddely as it has quite a small hole in the centre.

Can't find anyone who sells the washers in online welding shops! where can i get them?

Thanks,

Dave.

 

[rtbcomp]

Bearing supplier sell O-rings.

 

[chunkolini]

You can also try a decent car spares place, or agricultural merchants they usually have a red box with about a squillion sizes in them.

Chunko,

 

[Paul.]

Its not actually an O ring, more like a flat washer 11.mm od x 5mm id x 1.5mm thick, at least the one I have here is, the easy way to make them is with gasket punches.

 

[dave_sussex]

Hi,

Thanks for the replies.

Yes it is a flat washer like you describe, but i don't have a gasket punch to make any, i trired to make one with a sharp stanley knife with limited success.

Many people must have this problem, why do no websites sell them??

Dave.

 

[pedrobedro]

Get a revolving leather hole punch for belts and punch the hole from a sheet.

 

[Endacy]

The rubber inside my disposable bottle regulator did exactly this; got chewed and and leaked. So I pulled it out and used it without it at all, and it doesn't leak. Probably depends on the make / model but mine works fine without a rubber seal, just needs to be a bit tighter than before.

 

[Paul.]

Here you go, I make these for another application, but they are exactly the same size as the reg seal (the black one in the middle), they are made of PVC, but will do the job just fine. PM me if you want a couple.

 

[chunkolini]

This is why this website is such a top place to be.

Chunko'.

 

[dave_sussex]

Here you go, I make these for another application, but they are exactly the same size as the reg seal (the black one in the middle), they are made of PVC, but will do the job just fine. PM me if you want a couple.

Hi TIG Paul, Just checked this thread again and was happy to see your post, i would love a couple of your washers please will PM you! Many thanks, Dave.

 

[dave_sussex]

The rubber inside my disposable bottle regulator did exactly this; got chewed and and leaked. So I pulled it out and used it without it at all, and it doesn't leak. Probably depends on the make / model but mine works fine without a rubber seal, just needs to be a bit tighter than before.

i did try the bottel without a seal and it did hiss a bit!

 

[jenand]

I've used these, see link, o ring seals before from prepol.

 

[finbar]

regulator seal

Hi,came across your message with reference to a new seal for small co2 mig bottle,was still wondering if you still have any i can purchase?? cheers Finlay

 

[jimi_boom]

I know this is a little cheeky but i am a mechanical design engineer and if i only need a couple of O-rings for R&D i will ring a company and ask me to send a specific O-ring as a sample so i can try it.

The reason for this is i normally don’t need 100's of O-rings and they are normally very happy to supply samples.

A good supplier is martins rubber.