Mailing List Archive Mailing List Archive
A dial caliper is a very simple and safe way to confirm the maximum spacing on any double barrel o-ring style manifold.This one will be done on one not installed ;-) Hell, you can even use a toothpick and put pencil marks on it and still get the info you need. Measure the depth to the bevel which starts the sealing surface in the K valve. This will be where the threads stop and the smooth surface starts. Now match that measurement on the crossbar from the inner o-ring to the locknut. Just turn the locknut inward on the crossbar until you match the distance and stop. Now look at the measurement from the nut to the main body of the crossbar itself. If you want a more difficult, but highly convincing method with special effects, here is what you do. Remove the outboard o-ring on the crossbar, (left or right K, it doesn't matter). Assemble the manifold and tanks, but don't put the bands on. Now see how close you have to bring the tanks together before they will take on gas. This doesn't even take into account high pressure or impact, which actually rotates the crossbar rearward, separating the valves even more. The measurement you get on either test will determine the maximum spacing for the manifold in question in order to maintain a double o-ring seal. Dell Motes Dive Rite 117 W.Washington St. Lake City, Florida 32055 www.dive-rite.com -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]