Do regulators have a lifespan/ become dangerous of failure after so many years?

[bradlw]

I have a US Divers regulator I bought in early 1994...so 31 years old.

I wouldn't hesitate to dive it once I round up some parts or find someone willing to service it for me.
It's long ago discontinued and I think the company has been bought and sold a few times since it was made...so it's an orphan for support...
I'd imagine that for most really good quality regulators, that's the most common flaw.

Cheaper regs on the other hand, I've had some taht only lasted a couple of years before failure from corrosion or some other thing....

I was in the pool with my old reg just the other day for a quick test. Works perfectly...if you don't count the leaking fitting from bad o-rings.
I'll change the seats if I can find some and probably won't dive it till I do, but I'm pretty sure the only thing it needs after a couple of decades in storage is a clean-up and some new o-rings.

 

[OMyMyOHellYes]

So you want to dive at 100 feet and you want an eternal set of regulators that need minimal service and are rock solid, that is easy. That would be a Scubapro Mark 2 Evo with either new G260 seconds or get crazy and grab some original G250 second stages. The Mark 2 may not really have a service interval except the one imposed by corporate legal. Somethings are forever.

If you wanted a new G250 and could put up with the ugliness of them, they's also the Halcyon Halo seconds...