[PSUBS-MAILIST] Fw: well pump

[Alan James via Personal_Submersibles]

Tim,I do remember seeing some DC brushless well pumps with voltagearound about 36-48V. They have low DC voltages on solar powered units.I don't know enough about the magnetic coupling. It seems like it would becomplex & heavy. In our application, the propeller is pushing while going forward & pulling in reverse,so wouldn't there need to be large bearings on the coupler that would be exposed to water?I am changing my mind all the time over my thruster preference. I am now thinking a brushless motorwith gearbox & oil filled.Alan
      From: T Novak via Personal_Submersibles <personal_submersibles at psubs.org>
 To: 'Personal Submersibles General Discussion' <personal_submersibles at psubs.org> 
 Sent: Sunday, December 13, 2015 2:49 PM
 Subject: Re: [PSUBS-MAILIST] Fw: well pump
   
#yiv7184389253 #yiv7184389253 -- _filtered #yiv7184389253 {font-family:Helvetica;panose-1:2 11 6 4 2 2 2 2 2 4;} _filtered #yiv7184389253 {panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv7184389253 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;}#yiv7184389253 #yiv7184389253 p.yiv7184389253MsoNormal, #yiv7184389253 li.yiv7184389253MsoNormal, #yiv7184389253 div.yiv7184389253MsoNormal {margin:0cm;margin-bottom:.0001pt;font-size:12.0pt;}#yiv7184389253 a:link, #yiv7184389253 span.yiv7184389253MsoHyperlink {color:blue;text-decoration:underline;}#yiv7184389253 a:visited, #yiv7184389253 span.yiv7184389253MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv7184389253 span.yiv7184389253EmailStyle17 {color:#1F497D;}#yiv7184389253 .yiv7184389253MsoChpDefault {font-size:10.0pt;} _filtered #yiv7184389253 {margin:72.0pt 72.0pt 72.0pt 72.0pt;}#yiv7184389253 div.yiv7184389253WordSection1 {}#yiv7184389253 Alan, Hank,I still favour the 1atm hard can for the motor magnetically coupled to the prop assembly.  Simple, safe, one off the shelf through-hull in the can to carry power to the motor. I am way below the skill levels of you two.Tim  

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan James via Personal_Submersibles
Sent: December-12-15 4:02 PM
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] Fw: well pump  Thanks Hank,I remembered something different. However I will give up on that idea &get back to my home made thruster.Cheers Alan  From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
Sent: Sunday, December 13, 2015 11:56 AM
Subject: [PSUBS-MAILIST] Fw: well pump  Alan,This is what I am talking about, 110v AC oil compensated.  No magnetic coupler needed.HankOn Saturday, December 12, 2015 3:54 PM, xxx xxxxx <mp13 at live.ca> wrote:  200FT 1HP Deep Well Pump Submersible 33GPM Stainless Steel Underwater Bore HD  http://www.ebay.com/itm/200FT-1HP-Deep-Well-Pump-Submersible-33GPM-Stainless-Steel-Underwater-Bore-HD-/321009584621?hash=item4abda989ed:g:hZYAAOSwe-FU5OYW   
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