Need to build an underwater housing for camera

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Discussion Overview

The discussion revolves around the feasibility of constructing an underwater housing for a camera using an aluminum tube with specific dimensions and pressure requirements. Participants explore the structural integrity of the proposed design under 15 bar of pressure, as well as considerations for alternative solutions.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Experimental/applied

Main Points Raised

  • One participant questions whether an aluminum tube with a diameter of 127mm, a wall thickness of 3.5mm, and closed with 12mm thick disks can withstand 15 bar of pressure.
  • Another participant asks for clarification on the length of the tube and the specific application, indicating a need for more context.
  • A participant mentions that the tube is 750mm long and is intended to house batteries and motors for a remotely operated vehicle (ROV) designed to operate at depths of 100m.
  • Some participants suggest using commercially available underwater camera housings or pipe fittings with appropriate pressure ratings as alternatives to the custom design.
  • Frustration is expressed regarding the difficulty in obtaining necessary engineering information for the project.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the structural integrity of the proposed design under the specified pressure. There are multiple competing views regarding the feasibility of the custom housing versus using commercially available options.

Contextual Notes

Participants express uncertainty about the engineering requirements and the adequacy of the proposed materials and dimensions for the intended pressure conditions.

Barry Geer
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will an aluminum tube 127mm in diameter, 3.5mm wall thickness, enclosed on either end by 12mm thick disks with o-rings be able to with stand 15bar of pressure. Its for an underwater camera housing.
 
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What is your question? What part are you having trouble on?
 
Will a vessel of those constraints be able to withstand 15bar of pressure?
 
Barry Geer said:
will an aluminum tube 127mm in diameter, 3.5mm wall thickness, enclosed on either end by 12mm thick disks with o-rings be able to with stand 15bar of pressure. Its for an underwater camera housing.
How long is the tube?
 
Hi there..its 750mm long
 
Barry Geer said:
Hi there..its 750mm long
Why so long? What kind of camera is it? Is there a reason you can't use a commercially-available underwater camera housing?
 
This section is to house batteries for the camera and motors. Its part of an ROV that will be going down to 100m.
 
Seeing as you can't do the engineering yourself why not just use pipe and fittings with the appropriate pressure ratings?
 
Hi Billy
Thanks..but we struggling to get that info. Very frustrating!
 
  • #10
You have all the info you need. Call your local pipe supplier, tell the sales engineer you want pipe rated for 15 bar vacuum with X OD and X length, along with a blank cap and a site glass cap. I don't know if they'll be flanged or threaded but he will. If your lucky, he'll price it over the phone andemail you a formal quote within an hour.
 
  • Like
Likes   Reactions: berkeman
  • #11
Thanks Billy..will do that..appreciate the responses!
 

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