Thread: fun failure today
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Old 14th January 2007, 09:29   #4 (permalink)
abowie
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Re: fun failure today
To be perfectly honest I personally don't think a Mk 20 is a good choice for your O2 reg.

The HP piston O ring arrangement includes a cylindrical locating collar made of cheap plastic which is a fiddle to fit and can be cracked by an inexperienced or ham fisted tech. The one I fixed for CD had an IP of 275psi.

Chuck it out and use a diaphragm reg or go for something simple and robust like a Mk 2 or Mk 10+.
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