Currently, we are analyzing 3 pumps for gasoline services @ 38 degrees Celsius (ambient=21 degrees). Only two were going to run simultaneously and the other as spare. 6" nozzle, 10" piping. all restraint=sliding plate.

Attached config always resulted in failure of the spare pump nozzle in Fx wether the other two is running or the spare is running with either of the two.

My question are:
1. does the arrangement of the spare piping affects the nozzle of the spare pump?

2. someone suggest an EJ in the spare pump only, is it advisable?

Though we tried to add flexibility near the header(for all three) still same result( a failure in Fx in spare pump).. and flexibity near the valve assemblies cannot be provided anymore.

Please advise. An EJ on one pump only, is it okay?


I think.
Spare is not always a good thing.
Life's a mess.

im not sure if i attached the pic.
send me your e mail. i'll send it.