pump pressure? - psi?

[robert lipsett]

where can I find this

where can I find this dick smith's electronics for the pumps you are talking about

[smwarships]

Hello,
This link will take you

Hello,
This link will take you to Dick Smith's website .
The pump that we have been talking about pumps in
one direction only .

Dick Smith's

Here is the link that will take you to the page listing the
water pump . This page shows 2 water pumps , the P8907
pump is the one that has been mention here .

Pumps page

I hope this helps ,
Darle
Scale Model WarShips

[don prince]

Hi Guys,

First off, I'm a

Hi Guys,

First off, I'm a amature at this hobby. I'm in my 3rd year as a member of The Subcommittee. Therefore, everybody knows where I'm coming from.... I have been doing some internet hunting for a water pump for my OTW Type VIIc U-boat (the hull is completed). I found a Surflo RV/Marine pump OEM 100-000-21. It is rated at 2.1 bars (30 PSI) @ 12 volts. The size is 4.8" L, and less than 2" W/H. I think it would fit into a 3.5" WTC. It will be a tight fit with the intake and outlet ports opposite at the pump head (2.6" tip to tip). I was going to use a pressure switch to stop the flood and a Check valve on the pump intake. I haven't figured out how to control blowing the ballast yet. I could use another valve and simply dump the ballast, or set-up a control circuit to reversing the water pump.

1. Is this water pump OK to use?
2. Suggestions on controls?
3. I'm willing to learn!

Regards,
Don_

[smwarships]

Hello Don,
I don't know how

Hello Don,
I don't know how much the rv pump will cost you , but I
believe the cost of the water pumps from Dick Smith's will
cost less and do a good job for you .
You could always make a check valve using a steel BB
and 2 sizes of brass tubing .If done right the water pump
forces the BB off it's seat with ater pressure . When the pump
is shut off the water and air pressure forces the BB back onto
the seat and keeps it there .
To release the water in the ballast tank you could use a
normally closed KIP solenoid , use a small micro switch
that will be triggered by a servo to apply the voltage nec.
to open the valve .
I am going to be doing a little work on some electronic
fuel injectors , something that can be bought from the local
auto salvage yard for $10.00 each . I am going to try an
open up the injector so it has a bigger flow . If my
modification works this will be a good cheap source of a
water control solenoid . A KIP solenoid will cost about
$40.00 to $50.00 and about 4 or more weeks to get the
unit .

Darle

Scale Model WarShips

[don prince]

Hello petn7,

1. Where are you

Hello petn7,

1. Where are you in South Carolina (The State Flag)? I'm in Lexington, just outside of Columbia.

2. You got more than the cost of a years subscription / membership to "The Subcommittee" with the help provided to you by this forum.

3. Join now, and drop me a line....

Regards,
Don_

[petn7]

i'm from Clemson

i'm from Clemson

[petn7]

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Edited By petn7 on 1058069061

ignore



Edited By petn7 on 1058069061