hello again,
I believe the rubber is used in vibration isolation units rather than neoprene because it is cheaper! As I said previously the neoprene has additives to improve chemical resistance which add to the cost.
Hello
For the pipe friction, go to:
www.simplexdirect.com/FuelSupply/mainten04.html
The day tank should be filled in less than 1/2 hour, when operating at max. load. Should have two pumps w/valves so that one can operate while other is on standby. Provide strainers & filters to protect the...
Hello,
My experience with natural rubber is that it tends to age harden and is not as resistant to as many chemical solutions as is the neoprene material. Hope this helps.
Hello,
A centrifugal blower constructed of materials resistant to your ammonia fumes should work. You will probably want to introduce the fumes into your drum at the bottom using a sparger. See the net address below which will give instructions for calculating the pressure drop through the...
Hello again,
I would be sure to check the available NPSH against that required by the pump, since as velocity increases, NPSH available decreases due to increased piping losses.
Hello,
One problem I can think of is vortexing if you are drawing from a vessel. For example, at a suction velocity of 15 FPS, approx. 15 Ft. of suction submergence is required otherwise air can be entrained.
Hello,
I'm not sure a rotary type pump would be a good choice for gasoline/water service. I would think a diagphram type similar to that used in automotive systems would be the way to go. Fuel type pumps used in automotive service have the advantage of many years of experience pumping these...
Hello,
It's impossible to answer this question without having the specifics of the slurry. But one quick way to find out is to determine what other companies having the same or similar slurries use. If others are using a specific type of pump successfully, then you will have your answer!
Hello,
By way of your thinking, as an automobile goes faster, it requires less horsepower. Horsepower is work, generally speaking if you move more of anything per unit of time, it will require more work.
Hello,
The design is not as important as the result. If the suction bell design looks questionable you should ask the mfg. for the frictional resistance in feet of their fitting and compare it to others. The mfg. should be able to provide this info. since they usually test to determine it when...
Hello,
You might consider doing a literature search at:
www.sandv.com/home.htm and www.fluidpowerjournal.com/
also: Hydraulics & Pneumatics Magazine, sorry no web address
