dlndavid:
They can still fail when changed on a regular basis. Some places won't fill tanks with welded burst disks, but you can't tell if they're doubled without taking them out.
Another Burst Disc Question
- Thread starter Quarrior
- Start date
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They can still fail when changed on a regular basis. Some places won't fill tanks with welded burst disks, but you can't tell if they're doubled without taking them out.
Leadking
Contributor
From an old post of mine;
It is this mis-information that will cause someone to get injured or killed. Another company in the scuba industry advertised that Faber cylinders have had 10,000 hydro cycles without fail. This is a half truth. ALL cylinders, by ANY manufacturer, in order to be approved by DOT must pass 10,000 hydro cycles before failure. This test is done on a new cylinder without corrosion or age issues and is done between 6-10 time a minute until it fails and it must do a minimum of 10,000 cycles. When it fails, it must split and not fragment.
This test ensures virtually all cylinders have the same level of safety regardless of manufacturer. If a cylinder manufacturer overbuilt it's cylinders to a point where they would not fail they could never finish the test.
All cylinders made are done under "an equivelent level of safety". To assume all tanks are the same just the stampings are different is just plain wrong
It is this mis-information that will cause someone to get injured or killed. Another company in the scuba industry advertised that Faber cylinders have had 10,000 hydro cycles without fail. This is a half truth. ALL cylinders, by ANY manufacturer, in order to be approved by DOT must pass 10,000 hydro cycles before failure. This test is done on a new cylinder without corrosion or age issues and is done between 6-10 time a minute until it fails and it must do a minimum of 10,000 cycles. When it fails, it must split and not fragment.
This test ensures virtually all cylinders have the same level of safety regardless of manufacturer. If a cylinder manufacturer overbuilt it's cylinders to a point where they would not fail they could never finish the test.
All cylinders made are done under "an equivelent level of safety". To assume all tanks are the same just the stampings are different is just plain wrong
Leadking
Contributor
One possible cause for safety assembly or burst disk failure would be improper installation. If over tightened the nut can cut into the disk and weaken it, also if not tight enough, can cause the disk to move under pressure and wear out. The best way to install the disk is with a torque wrench to manufacturers' specifications.
Lee
www.seapearls.com
Lee
www.seapearls.com
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