[PSUBS-MAILIST] Fwd: Help
swaters
swaters at waters-ks.com
Tue Sep 10 22:10:11 EDT 2013
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© SmartphoneJon 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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