They may be good valves but not worth extra money. First time they get hooked up to a dive shops fill lines you have the potential for contamination and even if the valve “opens more slowly” you could still go boom. The reality is oxygen fires are not that common in our world. Mind you I’m not saying they don’t exist. Rather than rely on a piece of equipment to make you “feel” safer, choose to make good habits (slowly opening a valve, making sure you only use fill stations truly pumping clean gas) your priority. I would argue that 99% of tech divers don’t use these valves and ,ost of us live to tell the tale.
Dgx has great valves. Imo those special valves are unnecessary. But it’s just my opinion. But I also own my own fill station with a k14 compressor, electric boost pump, and completely separate manifold and fill whip setups to minimize cross contamination to my oxygen clean stuff. But honestly I believe oxygen safety in our field is over exaggerated. It takes common sense. Not sure about your local fill station, but I know a ton of fill stations, esp ow shops, where common sense has never been existed and they haven’t blown up yet.
