Truck offload pump
Truck offload pump
(OP)
Is there any type of portable pump to offload a 8000gal truck into a storage tank? I do not want to deal with any type of foundation work for a baseplate nor do I have local AC power at the tank site. Fluid is NAOH
Thanks
Thanks





RE: Truck offload pump
Many tanker trailers have offload pumps build in (but apparently not this one?)
How fast do you want it off loaded?
How large is the storage tank (height to determine head requirements)
What type of pump are you looking for? (there are probably 10 different type of pumps available)
I would GUESS your cheapest option would be a small gas powered centrifugal (if the viscosity is low)...but I'm not very experienced with NAOH.
RE: Truck offload pump
Can you order the NaOH in a truck that comes with it's own off-loading pump?
Can you order the NaOH in a truck that can be pressure off-loaded?
Your purchasing folks should be able to look into these options for you.
Good luck,
Latexman
RE: Truck offload pump
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
RE: Truck offload pump
RE: Truck offload pump
Get their driver to off-load it and you shouldn't care that it takes 2 hours. Can they make 2 runs in a day?
Good luck,
Latexman
RE: Truck offload pump
Offloading 8,000 gallons into a storage tank should be a piece of cake for a normal, nominal 150 gpm truck-mounted pump. The operation should take less than an hour - which is the time period I would design around if I were pumping caustic. As no coincidence, I believe you'll find that an offloading rate of 150 gpm is just about what most chemical process plants and transporters operate on.
Do not rely or specify on the time quoted to offload the caustic. The measuring stick normally used is the maximum pumping flow rate allowed to you by your company's guidelines or the transporter's operational standards. When handling or transferring hazardous substances such as caustic it is considered smart and safety-wise to not decrease the transfer any shorter than a pre-determined, empirical figure in order to ensure that sufficient time is allowed to react or prepare for an eventuality or process upset during the actual transfer. I've normally used an hour as the minimum time to transfer a fluid such as caustic; other engineers may opt to use less time.
I hope this experience is of some help.
RE: Truck offload pump
RE: Truck offload pump
RE: Truck offload pump
RE: Truck offload pump
RE: Truck offload pump
Bottom filling is definitely not recommended - regardless of how much extra head you have to achieve on the loading pump in order to fill at the top of the tanker truck. The loading should be done at the top, not the bottom. The obvious reason is that ultimately someone has to disconnect the fill hose and deal with the resultant residual caustic in the fill line. I don't believe anyone wants to volunteer for that job. It's too dangerous and not necessary.