Oxygen regulator problem

/ Oxygen regulator problem #1  

MillWeld

Gold Member
Joined
Feb 17, 2011
Messages
421
Location
Durham NC
Tractor
Ford 641
I wheeled out my oxy-acetylene cart and opened the oxygen tank valve and the relief valve immediately opened. Did it repeatedly. Is wiser to repair/replace the relief valve or just buy a new one? It is a Victor Equip Co. unit.
 
/ Oxygen regulator problem #2  
You should take it to a gas supplier and have it rebuilt. BTW,where did you see "regulator relief valves" for sale? I didn't know there was such thing.
 
/ Oxygen regulator problem #3  
Just curious, but what does a relief valve downstream of the shutoff valve do (i.e. what does it provide "relief" to)?
 
/ Oxygen regulator problem
  • Thread Starter
#4  
I saw "regulator relief valve parts" on a search but never a supplier.????

The relief valve relieves excess oxygen pressure as a safety precaution. Mine is obviously defective - failed abruptly.
 
/ Oxygen regulator problem #5  
The supply shop should beg able to get you a ball park figure to repair them. It’s usually well worth the effort.
 
/ Oxygen regulator problem #7  
I wheeled out my oxy-acetylene cart and opened the oxygen tank valve and the relief valve immediately opened. Did it repeatedly. Is wiser to repair/replace the relief valve or just buy a new one? It is a Victor Equip Co. unit.

You might have a piece of trash stuck in your high pressure inlet valve. ( it's the center part inside your regulator that the diaphragm and spring pushes against.) The pressure climbs until it vents. Eventually, your diaphragm will rip. I guess you have real victor and not the economy line?

Does your nipples have the porous brass filter on the id? I crack the cylinder valve to blow dust away before mounting my regulator. The little viton seals eventually wear. It may just be time to rebuild.
 
/ Oxygen regulator problem #8  
most of the ones I have looked at replacement is usually faster and easier, and the cost is not that much more, for many regulators,
 
/ Oxygen regulator problem #9  
If he has a reseating pressure relief, he bought the premium stuff like SR450D. Expensive and worth rebuilding.
 
/ Oxygen regulator problem
  • Thread Starter
#10  
Mine is a Victor SR250C. I saw a Utube video of someone installing a repair kit on the exact model so I purchased the kit. Hope it is worth the effort.
 
/ Oxygen regulator problem #12  
Doubt that the diaphragm has failed. I'd say the needle and seat is stuck. Simple to pull the bonnet off of the reg and have a look. Not much in there. Rebuild will be about $90. You can buy a descent reg for 1/2 that and it will still last 15 years or more.
 
/ Oxygen regulator problem #13  
Mine is a Victor SR250C. I saw a Utube video of someone installing a repair kit on the exact model so I purchased the kit. Hope it is worth the effort.

Good regulator. Its rubber diaphragm fails about every seven years or so. Rebuilds are about $45. Parts less labor are half that.

Make certain no oil of any form touches your oxygen reg. (Latent heat of compression + high pressure pure oxygen = a powerful, one time example of "dieseling") Always stand out of the path of your pressure adjusting screw.
 

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