[PSUBS-MAILIST] Light housing gaskets

[Hugh Fulton via Personal_Submersibles]

Alan I suggest you reduce the height of the main body and add it to the bottom piece with more grooves.

As you will no doubt be anodising you will not get as good transfer of heat through the joint.

Also if possible move the face O’ring to the outside more as water gets between the faces and corrodes.

Are you using heat transfer paste?

Hugh

 

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan James via Personal_Submersibles
Sent: Wednesday, 19 April 2017 2:28 PM
To: Personal Submersibles General Discussion
Subject: [PSUBS-MAILIST] Light housing gaskets

 

Cliff & Alec,

just ordering 20 tempered borosilicate lenses at $2-50 each including postage!

They will go in the pressure chamber, so I'll know whether I got good value.

Just wondering what you guys used as gaskets under the lens.

I did have an o-ring under the acrylic lens but are putting a gasket under the glass.

I have an o-ring in the bore of the lens housing but would like my gasket to be a 

secondary seal as well as seat.

Alec, with your experience of lenses breaking, I am looking at a suitable thickness

of neoprene or similar for the top gasket that I can compress to half it's thickness 

when bolting the housing together. This will give me a bit of machining tolerance.

see attachment

Alan

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