Pipe size

[ER_Azza]

Hi All

I am looking to install a 220L/m diesel dispenser for heavy vehicle at remote site
It is a short line from the tank to the pump and dispenser

I done some calc and seems using either 2" or 3" pipe would be okay for the application.
Can I get some advise out there from your experience on the best option?

Thanks

 

[LittleInch]

I would go for 3" myself, but depends on how short is short and where your pump is relative to the tank.

Some more details would have been nice....

220l/min is quite high - about double what you would expect from a normal truck filling point.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[ER_Azza]

Thanks Little Inch

The client fuel loading / dispensing station has a fast fill station for their light vehicle at 60 L/m using the normal fuel dispensing system.
The objective is to be able to fill their fuel truck at quicker speed as oppose to 60 L/m.
The tank is about 50m from the pump skid. The pump skids has filtration unit, before it runs to the dispenser at about 80m away.
A vendor submitted a quote for a flash system - using motors with VSDs, pumps, changes to most of the existing pipework at a cost of $500K.
The client thinks, and myself too, that this is ridiculous.

The client do have a separate dispensing system to fill up their fuel truck at another location at 200 L/m using a secure nozzle to the fill-truck.
A simple system - tank to fixed speed pump, recirc to control the flow, fitration unit, flow meter, and dispenser.

 

[IFRs]

To keep static from being generated, try to keep the liquid speed in the pipe less than 3 feet per second / 1 meter per second. This will give you a lower bound on the pipe size.

 

[LittleInch]

50 m to the inelt of the pump is quite a log way. If there is no elevation change ( down) then you need to e careful about NPSH on your pump. Go for at least 3" or 4" on this pipe.

I agree with the static issue at these sorts of flows. Diesel is notorious for generating high levels of static and earthing of the receiving vehicle might be required.

What sort of vehicles are we talking about here?

$500K sounds like quite a lot for a simple re-fueling rig. However these should come as packaged units from the likes of

http://www.piusi.com/products/dispensers/st-200-dc

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.