|
John Crane have a type 2100 seal that could meet trolling motor requirements. They are available from 3/8” or 10mm up to 290 psi (20 bar).
Regards
David Paget
-----Original
Message-----
A tolling motor has a
shaft size of 1/4, maybe 3/8 inch; and I don't
see any mechanical face seals for less than 1/2". Ceramic pump seals--don't know which one, but it shouldn't be all that hard to find. Did you ask Crane's tech staff? Vance
Vance, what was it they'd done to those Minnkotas again? I remember they'd replaced the lip seals on the shaft, but was it with ceramic seals? Because if they go to 1,200 feet, I'm interested! I'm been spending way too much time trying to source ceramic seals. There is a ubiquitous and cheap seal from John Crane called a Type 21, which in the MSC catalog is listed as "650 psi balanced / 250 psi unbalanced". Now, all my research so far indicates that whether a mechanical seal is balanced or not depends on the shape of the seal, and they offer only one shape, so I don't know what MSC is talking about. John Crane claims only the 250 psi figure, and their seals for 500 psi cost about 20 times as much. thanks, Alec ________________________________ From: owner-personal_submersibles@psubs.org on behalf of Joseph Perkel Sent: Thu 3/8/2007 9:05 AMTo: personal_submersibles@psubs.org Subject: Re: [PSUBS-MAILIST] Great link page Vance, The Minn Kotas are impressive!...I've seen enough now to stop worrying about thrusters. Nice photos of PC 1401. Of real interest to me are the saddle tanks (appears to be welded sheet metal), and the forward view port. From what I can see so far, for my boat, the fore and aft MBT's along with the fairings, can be standard mold / plug / glass construction. But the saddle tanks have a shape more conducive to sheet over frames. So my question to you is, what gauge sheet do you suppose this is, and what should the interior surfaces be coated with? Once sealed, these would not be opened again. Joe ________________________________ From: vbra676539@aol.comReply-To: personal_submersibles@psubs.org To: personal_submersibles@psubs.org Subject: Re: [PSUBS-MAILIST] Great link page Date: Wed, 07 Mar 2007 15:36:12 -0500 Re: 1401. Do you guys remember the discussion we had about Minn-Kota thrusters modified to sustain up to 1200 feet without compensation? Well, there they are. Vance -----Original Message----- From: MerlinSub@t-online.deTo: personal_submersibles@psubs.org Sent: Wed, 7 Mar 2007 3:28 PMSubject: [PSUBS-MAILIST] Great link page http://www.modell-u-boote.de/links/links_originale/links_originale.html http://www.modell-u-boote.de/originale/perry_1401/perry.html http://www.modell-u-boote.de/originale/marder/marder.html http://www.modell-u-boote.de/originale/holland/holland.html regards Carsten ************************************************************************ ************************************************************************ ************************************************************************The personal submersibles mailing list complies with the US Federal CAN-SPAM Act of 2003. Your email address appears in our database because either you, or someone you know, requested you receive messages from our organization. If you want to be removed from this mailing list simply click on the link below or send a blank email message to:removeme-personal_submersibles@psubs.org Removal of your email address from this mailing list occurs by an automated process and should be complete within five minutes of our server receiving your request. PSUBS.ORG PO Box 53Weare, NH 03281 603-529-1100 ************************************************************************ ************************************************************************ ************************************************************************ ________________________________ AOL now offers free email to everyone. Find out more about what's free from AOL at AOL.com <http://pr.atwola.com/promoclk/1615326657x4311227241x4298082137/aol?redir=http://www.aol.com> . ************************************************************************ ************************************************************************ ************************************************************************ The personal submersibles mailing list complies with the US Federal CAN-SPAM Act of 2003. Your email address appears in our database because either you, or someone you know, requested you receive messages from our organization. If you want to be removed from this mailing list simply click on the link below or send a blank email message to: removeme-personal_submersibles@psubs.org Removal of your email address from this mailing list occurs by an automated process and should be complete within five minutes of our server receiving your request. PSUBS.ORG PO Box 53 Weare, NH 03281 603-529-1100 ************************************************************************ ************************************************************************ ************************************************************************ The contents of this e-mail are intended for the named addressee only. It contains information that may be confidential. Unless you are the named addressee or an authorized designee, you may not copy or use it, or disclose it to anyone else. If you received it in error please notify us immediately and then destroy it. AOL now offers free email to everyone. Find out more about what's free from AOL at AOL.com. |