Saturday, November 12, 2011

Kubota DC Generator & DIY Watermaker - Parts List

OK, Here it is.  Mostly complete parts list for the home-built Kubota DC generator  and DIY watermaker.

(note:  These are LONG posts, if you got here via the 'water maker' label sorting method, make sure to click on the 'older posts' at the end of this one to see the rest of the series)



Item
Part #
Sourced From
Cost
Notes
MAIN MOTOR




  Kubota Diesel
EB 300
EBay
$400
Not sure about part number.  Might be EA 300?
  Heat Exchanger

nextgenerationpower.com
$400
Have had issues with bolting flange being too thin, warping and leaking.
  Hot Exhaust
¾” galvanized steel piping
Local hardware store
$35
Had MPT nipple welded to old exhaust flange
  Hot Exhaust Blanket
Custom
Local Supplier
$150
Makes it nice and safe!
  Water Lift Muffler
1.5”
Local surplus shop
$50

  Cold Exhaust Hosing
1.5”
Local Surplus shop
$24

  Drive Spindle
19501-8451-0
Kubota
$59
This is 1-7/16” x 3.5”
Other sizes:
  19501-8451-2 1-1/2" x 3.5" PTO shaft
14972-8451-2 1-3/16" x 2.17" PTO shaft
14943-8441-3 46mm x 90mm PTO shaft
  Alternator Drive Pulley 7.75”
1-2BKH80
1-2913-143
Surpluscenter.com
$26
$9
Pulley and bushing
  Water  pumps drive pulley – 3.35”
1-BKH32
1-2913-143
Surpluscenter.com
$6
$9
Pulley and bushing
Alternator Drive Belts
9400-14A1015
(Qty 2x)
Local Auto supplier
$35
I like Gates Green Strip
Water Pump drive belt
9400-13A1500
Local Auto supplier
$22

  Platform
Ebay, Craigslist, and other local surplus sources
Local welder
$200
I cut the part on my table saw, he welded them up.
  Isolator Mounts
V10Z77MAGB-30B 
vibrationmounts.com
$35
Another home-built had selected these.  I suspect they may OK for just a Gen, but adding the CAT pump they might be too light.  Will watch them for damage.

UPDATE:  One has failed.  So, yes.  These are too small for this design.
 




RAW WATER PUMP




  Raw Water Pump
Jabsco 1673- series
Ebay
$75

  Pulley – 4.45”
1-BK47-B
Surpluscenter.com
$10

  Pillow Block
6494K11
mcmaster.com
$38

  Jack Shaft
7405K9
mcmaster.com
$38

  Coupler
6099K42
mcmaster.com
$37

  Keyway stock
98530A177
mcmaster.com
$13





















 




DC GENERATOR




  Alternator
2700JB
Ebay
$95
Leece Neville 130A LARGE FRAME alternator (for better cooling).
Higher Amp alternator will stall Kubota, stick with 130A max.
  External Regulator brush plate
A038100265S, 39-5204 or 100265
Leece Neville
ase-supply.com
$22
Used to convert to allow using external regulator
  External Regulator
XAR
Xantrax (Ebay)
$125
Am thinking  to make custom regulator  with finer control of AMPs out.  Allow for both WM and Alt to operate at same time.
Upper tensioning Arm

Local ‘truck’ junk yard
Free
Just ask around, they had a pile and said take one!
  Pulley
P-167
ase-supply.com
$15.50
Any local supplier










WATER MAKER




 CAT Pump
CAT 311
Ebay
$175
Find of the Life!
 CAT Clutch
CAT 34962
autowashonline.com
$200
This one hurt, to pay MORE for the Clutch then the pump!
HP relief valve
1200PSI
Ebay
$28
Make sure to route the ‘exhaust’ to a safe place – will make a mess if she blows!
  R/O Membranes
#2C
cruiserowaterandpower.com
$374
Rich has lots of options on how to purchase parts, and at good prices.  Look around for your best mix.
  R/O Pressure Vessels
#2D
cruiserowaterandpower.com
$900
WOW these things went up in the past 8 years!  RO membranes came down though. . . .
  SS HP fittings and hoses
Many -
Premier Rubber (Portland OR)
$350
These small parts add up!
Plastic LP Fittings and hoses
Many -
Home depot
$50

Flow Meter –Raw Water
0-5 GPM
EBay
$26
VFB-86-SS would work here, but it is $77
Flow Meter – Produced Water
VFB-81-SS
Dwyer-inst.com
$56.50
Used 6-60 GPH  range meter, SS Parts
Feed water Pressure Gauge
21-1640-I
Surpluscenter.com
$19
-30/+60PSI  - this one is VERY LARGE, I actually purchased another smaller one but do not recall the source.
HP  Pressure Gauge
21-1572-X
Surpluscenter.com
Free
There are many options here.  I actually reused mine from a salvaged unit.
HP Needle  Valve
SS-18RF6-A
EBay
$50
Took a long time to find this for under $200
  UV Sterilizer
Search for “Reverse Osmosis UV Ultra Violet Sterilizer Ultraviolet”
Ebay
$99
Commonly used in aquariums.  Make sure to get Stainless Steel or other suitable materials.





PREFILTERS & RAW WATER PLUMBING




  Sea Strainer

EBay
$75

  Housings
Standard 10”
Purchased at Closeout sale
$30
Total for 3x.  Can source anywhere, I like the clear housings.
cruiserowaterandpower.com has for $17 each!
  20u Filter Element

Purchased at Closeout sale
$2
I used Spiral Wound for 20u element, thinking it is a bit more robust.
    5u Filter Element

Purchased at Closeout sale
$2
I used pleated filter for 5u as it has more surface area.
  Hydrocarbon Filter Element
8-BF-1-1R
2668705
BilgeKleen part number
Westmarine.com
$63
Was about the only place I could locate the element.  JUST PURCHASE the element and put into standard housing, not the Kit. 
Active Charcoal Filter
10”
Purchased at closeout sale
$5
Standard 10” housing with activated charcoal element.  Used in back flush line from house water system.
3-way Bronze valves
70-604-10
500388
WM# 185506
Conbraco / Apollo valves
Defender.com
Westmarine.com
$60

‘Bronze’ nipples
PN-750
GRO-PN-750
WM# 10202414
Groco
Wholesalemarine.com
Westmarine.com
$70
These are just now becoming available.  MAKE SURE TO USE BRONZE not BRASS!
‘Bronze’ Check valve
290605
WM# 308619
Seafit
Westmarine.com
$20

Many other parts and hoses

Local marine and home building suppliers
$250
Use Bronze and underwater rated hoses for anything important!  Plastic can be used for LP side of sea water (after needle valve)





OTHER ITEMS




Sodium Metabisulfite sterilant FOOD GRADE

EBay
$12
Use to ‘pickle’ the water maker.
DOW CORNING 111 VALVE LUBRICANT & SEALANT

EBay
$20.50
Use to lubricate membrane seals when interesting into housing
Salinity  Meter
Search for ‘TDS Meter’
Ebay
$19
Again, often  used in Aquariums








Adding it all up, the grand total comes to:  $4,884.50

I have to say, it is always a BAD THING to add up actual costs, I would have guessed around $3000, but it is what it is.  And one needs to remember, this is total.  Including all those Small Parts that seem to always slip away!  Things like exhaust hose, prefilters, sea strainer, etc.  It does NOT include my 100's of of hours spent sourcing parts and assembling.  But it also does include some nice extras like the UV light, hot exhaust wrap,  and hydrocarbon (oil) pre-filter.

Some places got away from me due to time.  Towards the end I needed to just Get It Done.  Lots of the small Bronze parts were purchased retail.  Same for the HP SS fittings and hoses.  The Heat Exchanger, and that darned clutch!  Overall, I might have been able to shave off $500 or so, and if I had worked a bit more on membrane housing alternatives (I had salvaged end caps from a scrapped water-maker, was looking for suitable piping to make the housings with) maybe another $400-500!  Still, even this would have have added up close to $4000.  As it is, we are at $5000 and perhaps 4-5 YEARS of aggressive EBay searching!

Alternative?  Cruise RO Water and Power's smallest system (20 GPH) retails for $4200.  If I had combined that with the Honda 2000i generator we would have had a total solution for about the same $5000.  Use the Honda to recharge batteries, Honda and/or main motor (via the inverter) to run the RO maker.  But at half the RO capacity.

Their 30GPH unit with a cost of $5050 gets us close to the same output level.  It  will still run on a single Honda 2000i (as well  I assume our 2000W Prosine inverter).  Puts the solution cost around $6,000 (though to be honest, we already have a Honda generator - carried as a backup to the backups. . . )

The 40GPH has the same capacity is my home built one, costs $5350 - but it will not run from one Honda unit. Though it likely would from two. (total solution would run around $7100)

Now, I am not picking on Cruise RO - in fact I think they have perhaps the simplest systems and best prices around.  If one is going to purchase pre-built, I think you would not go wrong making sure they are on the short list.  AND if you are assembling a Home Built - they will sell you the parts as well at rather competitive prices.

Given what we have, I am not unhappy.  And a big benefit is large capacity and running using our diesel fuel (which we carry a LOT of) vs. Gasoline.  But, looking at it all:  Some Solar panels, the 30GPH Cruise RO water maker, and a backup Honda 2000i is not a bad system and well worth thinking about.


NOTE:  NOVEMBER 2, 2012 - Make sure to read this entry concerning the pre filter housings!
http://mvvikingstar.blogspot.com/2012/11/water-maker-pre-filters-failed.html

4 comments:

  1. This comment has been removed by a blog administrator.

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    Replies
    1. Jasson,

      Thank you for the compliment, and I hope you find this parts list of some use.

      I have removed your original post as it contained an embedded hyperlink that bordered on SPAM.

      -al-

      Delete
  2. Another SPAM comment, I have cleaned it up here - but Thank you so much for the compliment, am glad you find value in what I am doing.

    A???????? ?? on November 27, 2013 at 12:09 AM posted: " Thanks for the post, I will look forward to see more posts from your blog and A?????? Generators." (Hyperlink to A????? company removed by mvVikingStar)

    ReplyDelete
  3. Very thanks for the informative post that you shared. Indeed a good work.

    ReplyDelete