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Re: [PSUBS-MAILIST] RE: Hydrophones
----- Original Message -----
From: "Smyth, Alec" <Alec.Smyth@compuware.com>
To: <personal_submersibles@psubs.org>
Sent: Thursday, January 21, 2010 4:46 PM
Subject: RE: [PSUBS-MAILIST] RE: Hydrophones
Glen,
Here's a link to the connector drawings:
http://www.subconn.com/filer/1031/Standard_Circular_4_Contacts.167326389
1164403.pdf
If you thread the hole, the fitting length really doesn't matter. If you
go with smooth bore and a nut, you have 19mm of thread to work with.
Personally I thread the holes because my bulkhead is too thick for nuts,
but either approach would do.
Best,
Alec
-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of glen brown
Sent: Thursday, January 21, 2010 12:23 AM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] RE: Hydrophones
Thanks Alec
Can you furnish us with the bore size and length of the fitting ,also
would one only need one such fitting and where does one locate it on the
sub.
All the best
GlenSA
----- Original Message -----
From: "Smyth, Alec" <Alec.Smyth@compuware.com>
To: <personal_submersibles@psubs.org>
Sent: Wednesday, January 20, 2010 4:46 PM
Subject: RE: [PSUBS-MAILIST] RE: Hydrophones
Hello Glen,
Just a clarification. You can bolt them on, but you do need to use an
elementary fitting in doing so. Just take a 1" stainless round, drill a
hole in it, finish the end faces, and weld into the hull. The connector
needs that smooth face for it's O ring to seat on, it's not that you
drill a hole directly in the hull and plug the hole with the connector.
Thanks,
Alec
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From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of glen brown
Sent: Tuesday, January 19, 2010 5:21 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] RE: Hydrophones
Thanks Jon
I can bolt it on without a thru hull fitting spares the urgency.A
couple of months at least I see where persistence got its name.
Glen SA
----- Original Message -----
From: "Jon Wallace" <jonw@psubs.org>
To: <personal_submersibles@psubs.org>
Sent: Wednesday, January 20, 2010 12:04 AM
Subject: Re: [PSUBS-MAILIST] RE: Hydrophones
The Subconn BH4F has a 7/16x20 machine threaded shaft 3/4 inch long.
You can either drill a hole and bolt it in place, or thread it into a
thru-hull manifold appropriately machined for 7/16x20 threads.
Check PSUBS or Subconn website for detailed info on Connector BH4F.
If you can't wait for delivery and use something from a local
supplier, I recommend you wire it as per Design Guidelines for
Personal Submersibles Section 3.1 at
http://www.psubs.org/cgi-bin/guidelines/chapter.cgi/guidelines/PSUBS/D
G since David should now be wiring his projects according to the
standard as well.
Jon
glen brown wrote:
Thanks David
The problem with the standard thru hull you are suggesting would take
in excess of a month to reach me in this part of the world ,is it a
skin fitting type or does it also need to be welded in?does one
attach it to the C.T or some where else .
Glen SA
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