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Dave S wrote:
> J.Kahn wrote:
>> I hooked up an oxygen regulator to a tank and opening the tank valve
>> slowly it registered about 2200 psi. To check for the seal at the
>> regulator connection I then turned off the tank valve with the
>> regulator closed so that the gage was reading only the pressure of the
>> few cc's of gas trapped between the regulator and the closed tank
>> valve. The pressure would drop about 25-50 psi per minute. It
>> should be zero no?
>>
>> John
>
> Yes. Should be zero loss and hold pressure for hours. Check for any
> dents on the nipple of the CGA fitting.. any debris on the inside of the
> valve stem.. and ensure the regulator itself is "closed" when you say
> its closed... maybe put a balloon over the end of the outlet and see if
> the balloon inflates.. spray soapy water on the CGA fitting when the reg
> is attached to the bottle and charged,.. look for bubbles to indicate
> the leak.
>
>
> And remember don't use anything with grease/oil when doing this
> troubleshooting (sorry if im stating the obvious)..
>
> Dave
Got it to seal after removing to clean up and reinstalling. Thanks.
John
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Re: Welding Regulator Leakage
