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Old 02-02-2020, 10:24 AM
jmiller29 jmiller29 is offline
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Default Oxygen regulator diaphragm replacement help

I replaced the diaphragm on my Victor oxygen regulator but when I turn the gas back on, the low-pressure gauge pegs at max no matter where I set the adjusting knob. I've opened and checked the diaphragm multiple times but it looks fine and I don't see anything else I can do in there. Any thoughts on where the problem is?

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Old 02-02-2020, 12:06 PM
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Sberry Sberry is offline
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Its probably not the diaphragm, its a little nylon washer in the needle and seat cracked.
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Old 02-02-2020, 12:17 PM
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Shade Tree Welder Shade Tree Welder is offline
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Quote:
Originally Posted by Sberry View Post
Its probably not the diaphragm, its a little nylon washer in the needle and seat cracked.
There are a bunch of little parts in regulators that should all be replaced when
you crack open a regulator. Also are you 100% positive that you put every
back in the exact same way it came out?
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Old 02-02-2020, 02:04 PM
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mccutter mccutter is offline
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The part that went bad with my Victors was part #9 that has a little sealing ring that mates with the inside of part #7. Diaphragm was fine... Kits are about $17 on debay.
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Old 02-03-2020, 09:40 AM
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Seems I saw it for 11$ but good reminder as I have a couple 450 to fix. Should have done them earlier but I had spares.
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Old 02-03-2020, 11:16 AM
jmiller29 jmiller29 is offline
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I think you're right about the washer. I noticed that it was cracked but it looked like a little C washer so I wasn't sure if that was normal or not. Thanks!!
I had to replace the diaphragm because it was blown through at the little opening. I guess that was why.
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