Looking for some O rings

[skippyelwell]

I noticed the other day that all the O rings on the tips for my Oxy/Acet are starting to get crunchy, I went to Cancarb the welding shop I use the most but they couldn't help me.
Anyone know where I might try next? I'm assuming the material for the O rings must be some kind of special compound to handle Acetylene?

 

[Susquatch]

Not my field of expertise, but acetylene is just a HC gas. So I think most of the common ones will work. For example, Nitrile, EPDM, fluorocarbon, and neoprene should all work fine. PTFE is prolly good too.

 

[whydontu]

I bought a couple of o-ring assortments off Amazon, relatively cheap and have found them very useful. (Granted, I do a lot of mucking-about with valves and pipe fittings). The silicon ones are quite soft, the rubber ones are likely what is used on your torch.

Arcjunys Rubber O Ring Kit o'ring kit 18 Sizes o Rings Rubber O-Ring Kit Oring O-Ring Assortment Kit Rubber O Rings Kit for Plumbing Automotive and Faucet Repair 225 Pcs : Amazon.ca: Tools & Home Improvement

Arcjunys Rubber O Ring Kit o'ring kit 18 Sizes o Rings Rubber O-Ring Kit Oring O-Ring Assortment Kit Rubber O Rings Kit for Plumbing Automotive and Faucet Repair 225 Pcs : Amazon.ca: Tools & Home Improvement

www.amazon.ca

https://www.amazon.ca/dp/B0BX9RV7HX?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

 

[someidiot]

There are also lots of specialty "seals and sealing" shops around, such as this one in Calgary:

O Rings, Gaskets, Fluid Seals & More | Hi-Tech Seals Canada & USA

Leading manufacturer of high-performance O-rings, industrial gaskets & mechanical seals. Serving Canada and the USA with custom sealing solutions. Get a quote.

www.hitechseals.com