Racer1_NC

One of the issues we as CH O2 users has been when we have both M and E tanks available to use. The M/Welding tanks use a CGA540 connection, and the E tanks use a CGA870 thus preventing swapping regulators between the two. While I've known of an adaptor that allows you to run M tank regs on E tanks, I've only heard talk of a device that allows to reverse, the ability to use a E tank reg on a M tank. Until now, I didn't think such an adaptor could be sourced, but I finally found it and have tested it myself. It works!! There is a nonstandard seal requirement, but that's easily met. You simply order the thick seals linked below and use them in place of the standard brass/rubber seals we normally use. I have no financial connection to these items, and this is for informational purposes only. You be the judge if this set up is right for you. The adaptor. The seals.

I'm attaching a pic to illustrate parts of the regulator. When you turn the M tank on, the demand valve will be charged and ready to use. The mask flow control has no effect on the demand valve. You will leave it on "0" unless you use the O2 mask rather than the demand valve. You will need an adjustable wrench of sufficient size to attach the regulator to the tank and the demand valve to the regulator. Ensure the tank valve is closed before swapping regulators.

I think I have found a better deal for you. HERE This option will give you what you need plus a barb fitting for the mask as well so you can use either. Glad to help.

Usually Amazon has some, but it appears that right now that none are available there. You can configure one with a DISS fitting at WT Farley Here. E tanks regs are easier to source. I've also found an adapter that may work but am waiting on the proper seal to make sure its something i can recommend. There may be others but ATM I can't locate any. Ill keep my eyes open.

Ok folks.....I can't take credit for finding the following and it was so cheap I thought it was a scam. So.....I ordered one before spreading the word. It came today and appears to be legit. Demand valve and hose for $50 US. Brand new, in the box. Ebay Link

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