ABay Diver
Contributor
The owners manual for my USD Calypso J says 3500 psi is fine. I bought my reg in 1970.I like J valves and use them regularly. But, I've only ever used them on steel 72's with the lower pressures. I just got a brand new Aluminum 80 and want to use a J valve on it too. It's freshly serviced and I have a 5K burst disk to put in it. What are the pressure ratings on J valves? One is a Sportsways and the other is a US Divers. Can I use one of them for the higher 3K pressures? Thanks