[PSUBS-MAILIST] Fwd: Help

hank pronk hanker_20032000 at yahoo.ca
Wed Sep 11 08:30:08 EDT 2013


Scott,
Can you weld a plug in the seat opening and then machine it to the right size.  You can also lay some weld in the opening and machine that to the right size.  It sucks but it is a quick fix.
Hank

From: swaters <swaters at waters-ks.com>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
Sent: Tuesday, September 10, 2013 8:10:11 PM
Subject: Re: [PSUBS-MAILIST] Fwd: Help



Jon,
I currently have thre of those US seals. The problem is it is a OD of 1.5" and is to small to fit the collar. I am thinking of some how building a insert that will make the US seal fit. Other than that, I believe I am out of options. 
Thanks,
Scott Waters




Sent from my U.S. Cellular© Smartphone
Jon Wallace <jonw at psubs.org> wrote:


Yes, that one plan in particular is pretty nasty.  It's a Crane 8B3, not 883.  The exact wording is as follows:

Crane 8B3 Seal (see Crane DWG CF-SP-44204)
or US Seal PS 309 (see DWG K350-025-3)

The 600 required the same seal (8B3) but they are not manufactured anymore.  I contacted Crane back when I removed the K600 motors because it was pretty obvious they were going to have to be replaced and they were more than willing to manufacture an exact duplicate for $1800 per seal.  The replacement is an 8-1 which was going to cost $1000 per seal.  That's one reason I scrapped the existing motor configuration and decided on fixed minn-kota thrusters.  I purchased four 101# thrust minn-kotas for less than the price of one Crane mechanical seal.

You have another option with the K350 however, US Seal PS-309 (150psi) and they are cheap, between $50-100.
http://www.ussealmfg.com/pdfs/US_Seal_Mfg_Catalog_2012.pdf
I couldn't use the 309 because I needed a rating of 300+ psi but the 309 at 150psi will theoretically get you close to max dive depth.

Jon


On 9/10/2013 2:33 PM, swaters wrote:

It is a type 883, .875 shaft seal -J CRANE Packing Co. 
>I think that is right but the kitteredge blue prints are so hard to read after being copied over and over.
>Thanks,
>Scott Waters
>

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