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[PSUBS-MAILIST] gas piping through hull
- To: personal_submersibles@psubs.org
- Subject: [PSUBS-MAILIST] gas piping through hull
- From: "Antoine Delafargue" <antoine.delafargue@gmail.com>
- Date: Sat, 12 Jan 2008 20:50:36 -0800
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Hello,
I am struggling on the design of gas piping through hulls for my 1atm 1 person sub project, if anyone could help:
-What is the best way to design gas through hulls (as close as ABS standards as possible) ?
a) the one I am considering: circular thick SS plate welded on the end cap with various holes (O2, MP air, MBT, snorchel/vent) machined in it and threaded for setting ball valves directly on it. (actually 2 plates for full redundancy). that s the "threaded" i don t like.
b) same SS plates but swagelok tubes welded on it and connected to the valves. that s the "welded" i don t like
c) same SS plates with machined holes, filled with some off the shelf gas through hulls, linked to tubes and valves. not as simple: it implies a seal between the SS plate and the through hull.
d) individual off the shelf gas through hulls welded on the hull. But I could not find a reference in the Swagelok catalog.
e) other suggestion...
Thanks a lot,
Antoine