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  1. dru8923

    32.5% urea Diesel Exhaust Fluid - heat exchanger tube material?

    Thank you. We only have air for the reactor do you know of any heater/blower combos that will supply 350-400F air at 500-800scfm?
  2. dru8923

    32.5% urea Diesel Exhaust Fluid - heat exchanger tube material?

    Thank you. Any idea why ISO specifies no aluminum for 32.5% urea (AdBlue brand)
  3. dru8923

    32.5% urea Diesel Exhaust Fluid - heat exchanger tube material?

    I'm looking for the best material with high corrosion resistance to 32.5% urea, that also has high thermal conductivity to be used in a heat exchanger. The urea will be in the tube side, pumped in at 60F and heated to 350F. Therefore, the tubes will initially contain urea liquid then after...
  4. dru8923

    Need to boil 5 gal per hour of acidwater - no propane or gas source for heating

    Thanks for the replies. Yes it's an H2S, water, and ammonia I believe. There's no hot water source or gas source so air is the only way, using some sort of immersion air heater. There are the portable kind that supply 10KW/1000cfm but only reach 100-150F. This is not a typical heat...
  5. dru8923

    Need to boil 5 gal per hour of acidwater - no propane or gas source for heating

    We have acid water with only some properties known. We need to boil this at 5gal/hr and capture the vaporized air at the top. The concept is a vertical heat exchanger. The acid water will come in from the bottom at 70F, enter the tubes, and will be heated by hot air. The vapor will rise...
  6. dru8923

    7,000 lb Disc Lifting clamp

    thank you paddingtongreen, Do you know of any inexpensive companys that can run an FEA for me?
  7. dru8923

    7,000 lb Disc Lifting clamp

    Hi I'm looking for assistance in calculating stresses on a lifting clamp. Disc dimensions: 6 foot diameter, 6 inch thick Clamp dimensions: 6"x1/2" rolled to disc OD (two halves) Clamp bolts: six 7/8" bolts (3 per side) I attached a picture for clarity. So far, I have calculated hoop stress...
  8. dru8923

    Cannot find high-flow water cleaning gun

    Thanks for the input everyone. Cannondale and btrueblood, Yes we currently use a Cat pump 6020 on our trucks with 1-2 guns per pump. Roughly 30GPM and 800 psi on each gun. Our current gun is a 1950 design made with 304SS 3/4" SCH-40 seamless pipe (1.05" OD, .824" ID). Much larger than the...
  9. dru8923

    Looking for strongest as-welded aluminum

    No seams. We will be welding the inlet and outlet tubes to the main body
  10. dru8923

    Looking for strongest as-welded aluminum

    Hi, I am designing a high pressure wash gun using a Cat 6020 pump. P = 1000 psi Q = 60 GPM The gun will look similar to this: http://www.gardnerdenverproducts.com/assets/0/180/146/196/3e5967b6-7800-4c81-a676-4138a0dbe0dd.PDF We currently use a 1950 vintage gun made from 1" 304 tube, so the...
  11. dru8923

    Cannot find high-flow water cleaning gun

    Thank you. I am shooting for 5:1 depending on the weld strength of the aluminum. I am looking for the strongest filler/base combo to give us the highest weld strength.
  12. dru8923

    Cannot find high-flow water cleaning gun

    Thank you. Found some in the 30 GPM range. We may have to build our own with aluminum.
  13. dru8923

    Cannot find high-flow water cleaning gun

    Hi, I am looking to purchase 10 new guns for our pressure washers, but am limited due to our existing pumps. The highest rated pressure washer I can find is here: http://www.northerntool.com/shop/tools/product_200402932_200402932 It's rated for 2500 psi and 30 GPM. However, our Cat pumps are...
  14. dru8923

    Are my solar calculations right?

    The unit requires an input voltage of 24VDC-240VAC
  15. dru8923

    Are my solar calculations right?

    I need to power a transmitter 24 hours a day. The unit uses 10W max. 10x24 = 240Whr/day 8 hours sun/day (Los Angeles) 240/8 = 30W So is it correct to say I would need a 30W solar panel??
  16. dru8923

    Truck offload pump

    No can do. I don't know if pressurized tankers have enough pressure to overcome the 20' level of the tank, since the connection is at the bottom of the tank. I was thinking of running pipe along the side of the tank so the tanker can fill from the top (above the liquid level). What are your...
  17. dru8923

    Truck offload pump

    I found a local trucking company who uses a PTO driven pump with a 50-80GPM nominal and 120GPM max flowrate. I am not familiar with 'PTO' driven pumps but was told it runs off the diesel truck engine. The tanker is 5,000 gal.
  18. dru8923

    Truck offload pump

    We currently bring in a truck 1-2 times each day, to keep our tank level between 17-20 times per day. I have called several suppliers and they tell me they only store caustic, they do not provide trucks. I did contact one caustic trucking company and he told me they have a 5000gal truck with...
  19. dru8923

    Truck offload pump

    How fast do you want it off loaded? AS FAST AS POSSIBLE How large is the storage tank (height to determine head requirements) THE TANK DIAMETER IS 44' AND WE LIKE TO KEEP THE LEVEL BETWEEN 17 AND 20 FEET AT ALL TIMES

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