[PSUBS-MAILIST] High Pressure Pump

[Alan via Personal_Submersibles]

Thanks Greg & Hank,
size is a determining factor for me as I am building a one person sub
smaller than Cliff's R300.
That 500 psi battery powered unit looks good Greg. I wonder if I could
put salt water through it though!
I saw this marine pump that looks a good alternative if I can't find anything
in the high pressure range. But it doesn't say you can run salt water through it.
http://www.ebay.com/itm/12V-Seaflo-100-PSI-Water-Pump-RV-Boat-High-Pressure-Marine-Boat-4-Year-Warranty-/191830266640
It is small, not much bigger than a 1 litre milk bottle (in picture)
There is this 1600psi AC water blaster with a "corrosion free for life" pump.
https://www.mitre10.co.nz/shop/karcher-k2-basic-electric-waterblaster-1400-watt/p/269411
Perhaps I could replace the motor with one of my 2000W brushless DC motors?
Attached photo is of a water blaster motor & pump I have, one of my DC brushless motors with key way & a 1 litre (quart) bottle of milk for size comparison. Although 
the water blaster is an AC unit, it has a universal motor & I have run it on 32V DC, but is very weak. 
Another thought was to pull apart the water blaster pump & hard anodise the 
aluminium pump body! Here we go again! 
Alan



Sent from my iPad

> On 26/04/2017, at 12:46 AM, james cottrell via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Here's one that is 500 psi at 1 GPM-
> 
> yardforceusa
> 
> Greg C
> 
> yardforceusa
> 
> 
> 
> From: james cottrell via Personal_Submersibles <personal_submersibles at psubs.org>
> To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
> Sent: Tuesday, April 25, 2017 8:37 AM
> Subject: Re: [PSUBS-MAILIST] High Pressure Pump
> 
> Hi Alan,
> 
> There are now some battery powered pressure washers that should work fine. Here's a link to one of them-
> 
> New Hitachi Cordless 18V Pressure Washer - Tool Craze
> 
> New Hitachi Cordless 18V Pressure Washer - Tool Craze
> Before you had to choose between an electric plug in or a gas engine pressure washer. Now you have a third optio...
> 
> 
> Greg C
> 
> 
> From: Alan via Personal_Submersibles <personal_submersibles at psubs.org>
> To: personal_submersibles at psubs.org 
> Sent: Tuesday, April 25, 2017 4:14 AM
> Subject: [PSUBS-MAILIST] High Pressure Pump
> 
> Hi,
> I've been searching for a high pressure marine water pump over 500psi
> with view of using it on my trimming system & compensating system, 
> but haven't had much luck.
> I want to be able to pump water out at 500 ft to adjust the buoyancy. 
> The 500psi is for a bit of redundancy. An additional thought was that I 
> could have a valve on it to operate a drop weight mechanism.
> Anybody know of any such animal in existence thanks.
> Alan
> 
> 
> Sent from my iPad
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