quote:

Originally posted by B.K. Hosken:
question: The pressure relief valve will keep the pressure to whatever it's set at (90psi), and any pressure over that will be dumped out the valve. Does this mean if I put a 3gpm at 100 psi pump on the system, the relief valve will dump the extra 2GPM the CF doesn't use, and keep the pressure at 90psi?

Anybody?

There is a relief valve at Lowe's that has 1/2" input and output ports. This should have sufficient flow for the values you specified. They're $11. Made of brass. It is set at 75 psi from the factory but the Lowe's guy said that you can adjust the pressure by turning the screw. Unscrew the top and you have access to turn the screw to tighten it to increase pressure. I have not done that yet.

Sorry, I forgot the part number, but there are only 2 models at the water filters section of the store. You can either get the 3/4 to 1/2 model, or the 1/2 to 1/2 model.

The pressure relief valve from Lowe's that I am using seems to bypass at least 1 gpm. Not sure if it would handle 2gpm, but I suspect it would give it a good try. See my posts a few pages back with the pics for more info.

Sun, would you expect that with mistwashing that you'd remove enough particulate that it would reduce the number of passes through the DieselCraft? Assuming you can dewater in one pass it might be worthwhile. Does anyone know what size particle mistwashing removes to? If it can do below 5 micron it certainly would be useful.

Sam

My mistwashing has never removed much of the small particles. And it adds passes since then its more passes to dewater, unless you let the water settle overnight.

I do not have my Dieselcraft set up yet, but after I mistwash (for a couple of hours until the water comes out clean) I allow it to settle from 1 to 3 days, depending on my shcedule, then siphon off the top through a 1 micron bag filter supported in a wire basket attached to my Mistwashing drum stand. I plan to do the same, but add in the Dieselcraft between the settling and the 1 micron bag filter. This way, the oil would have had a chance to settle out water, and the CF will just polish things up a bit more and give more life to my bag filter. Also, after storage, I use a Frantz filter between storage drum and the Frybrid tank in my trunk.

Some of you have expressed interest in the Shurflopumps. I have two: 2088-422-444. One is new in box and the other is new with the exception that I've defeated the pressure cut-off switch. I mounted it for use in a Flash Evap, but never hooked it up.

http://www.shurflo.com/pages/RV/rv_categories/potable_w...tableWaterPumps.html

PERKHOUSE has run these pumps at 80-100 psi on a single orifice FE, if I recall, for extended periods by cutting out the pressure switch, with no problem. I've simply decided to stay 110V.

Label says $59, but these go for $63 at http://www.bigdiscountrv.com/waterpumps_shurflo.htm

I will sell one or both at $55 (each) plus shipping, say $10 for one and $13 for two, (cheapest USPS). Payment by cash or money order.

quote:

Originally posted by SWMSGoodman:
Some of you have expressed interest in the Shurflopumps. I have two: 2088-422-444. One is new in box and the other is new with the exception that I've defeated the pressure cut-off switch. I mounted it for use in a Flash Evap, but never hooked it up.

http://www.shurflo.com/pages/RV/rv_categories/potable_w...tableWaterPumps.html

PERKHOUSE has run these pumps at 80-100 psi on a single orifice FE, if I recall, for extended periods by cutting out the pressure switch, with no problem. I've simply decided to stay 110V.

Label says $59, but these go for $63 at http://www.bigdiscountrv.com/waterpumps_shurflo.htm

Are these only for water?

I use Shurflo pumps (115v variety) for pumping all sorts of chemicals from mild acids to WVO and if they have the right o-rings even biodiesel. Friends in the pressure washing industry use these pumps for spraying some really nasty acids... stuff I don't even like to work with.

In talking with the factory I believe most Shurflo pumps can handle up to 180 degrees F.

I tried using a Shurflo with a pressure bypass but it cycled on and off all the time. You may want to try a bypass circuit with just a valve to adjust the pressure AND flow. That way you can limit it to 90psi. This should prevent the quick cycling on and off which can't be good for the pump.

Todd

I just got a new Teel gear pump with a little more capacity. I hope to be able to drive the DieselCraft with a little bit more pressure (with safeguards in place), also, and to use it for moving more oil between barrels etc.

The good news is that my truck is now Vegistroked. Jason and James knocked the installation out in a day.

Sam

quote:

Originally posted by Todd T:
In talking with the factory I believe most Shurflo pumps can handle up to 180 degrees F.

The specs from the factory say 160F max. on this model that looks the best. Its 130F max on the RV models of the pumps.

quote:

I tried using a Shurflo with a pressure bypass but it cycled on and off all the time. You may want to try a bypass circuit with just a valve to adjust the pressure AND flow. That way you can limit it to 90psi. This should prevent the quick cycling on and off which can't be good for the pump.

Did you use it with a Dieselcraft? From reports so far I don't think there is any model of shurflo that will do 90psi and 1gpm with VO so you won't have to worry about a bypass.

What temps. are the rest of you running the oil through the Dieselcraft? The reason I ask is I had my oil around 160 Deg. today and I kept poping the o-ring even when I bypassed oil to get the pressure down to 70 psi. Has anyone else experianced this?

Thanks,

Mike

140 to 150 for me. My pressure hangs at 70-75.

Sam

Look at the outside top of the centrifuge rotor.

If it is concaved you have over pressured the sytems and deformed the rotor.

See the photos at:
http://www.dieselcraft.com/rotor.htm

If this is the case let me know at sales@dieselcraft.com and we will get you fixed.

So just to clarify for myself, can the large diameter outlet at the bottom of the CF be plumbed back into a line, or does it need to run freely, such as I am seeing in the examples of pictures posted where the Dieselcraft is draining back in to the drum. The reason why I as this is because I have my drum up on a waist high table, and it would be inconvenient to climb up and into the barrel every time I needed to clean the bowl. I was hoping to plumb it in to a line somewhere at waist level.

dieselcraft

I have same problem that Sam Crowe has. The first preasure I ran was around 75 psi and it blew o ring out. Have since put a machine washer on top of rotor and things are holding together, no vibriation

Silver

I meant MIKE0000 in stead of Sam crowe my mistake

I will you send an E-mail Mr. Dieselcraft.

Silver compare your rotor to the photo Mr. Dieselcraft posted a link to.


Mike

quote:

Originally posted by John Mason:
So just to clarify for myself, can the large diameter outlet at the bottom of the CF be plumbed back into a line, or does it need to run freely, such as I am seeing in the examples of pictures posted where the Dieselcraft is draining back in to the drum. The reason why I as this is because I have my drum up on a waist high table, and it would be inconvenient to climb up and into the barrel every time I needed to clean the bowl. I was hoping to plumb it in to a line somewhere at waist level.

It can be plumbed into a line, but it must drain freely by gravity. So it has to be up high, and putting the barrel up high would be a hassle.

Hmmm.. I need to devise something to make this work.

quote:

Originally posted by SunWizard:
It can be plumbed into a line, but it must drain freely by gravity. So it has to be up high, and putting the barrel up high would be a hassle.

My DieselCraft is up high on a platform (the CF is actually at least 9 feet up), that I can stand on. It works well, except that might be why my output is lower. However it allows me to use to gravity feed as needs dictate. Since I want to up the pressure and output slightly I might have to reconfigure the barrels (however, my new Teel pump should be the fix).

All the time I've been reading about using WVO and reading about folks having spills and leaks, I thought, that will never happen to me! Well let me tell ya, being anal has not prevented me from making a lot of messes. Now I'm looking at doing some re-plumbing, so I can count on more messes.

Sam