Dual argon regulator/flowmeter

[snakeeyes]

Anyone have any good experience with dual argon flowmeters/regulators from HTP, Flametech, or SPARC?

Looking to buy a dual output, but reviews seem to be hit or miss on having lots of leaks or being super sensitive to knob adjustments when changing flow. Plus HTP, SPARC, and almost every ebay ones look like the same part. Flametech looks to be its own design.

Figured it would be easier to run a dual than to have a tee into two individual flowmeters.

 

[matt_i]

This might not answer your question directly..but on process equipment I've seen a very standard Victor inert gas bottle regulator where the output fitting was removed (its a 1/4" NPT) and replaced with a swagelok tube fitting exiting with hard plastic line. Once you get to around 60psi on the "secondary side" of the primary bottle regulator it would be easy to tee and then use garden variety air pressure regulators.

 

[thejimmy]

I have the HTP, for about 4 years, the adjustment is a little finicky if your trying to get 12cfh vs 15cfh. Those numbers are for example only, IOW if I try for 12cfh when I let go of the knob the flow may jump a little, but it has served me well and I've earned a fair amount of $$ using it.

 

[snakeeyes]

Thanks for the reply. It seems every regulator people complain about leaks, but was wondering if people had run into other problems with some of these dual regulators.