DESCRIPTION: In eductors, the velocity of the high
pressure water jet creates a vacuum which sucks
additional water from the flooded compartment into the
eductor combining chamber, where the high pressure
stream picks it up and carries it along through the
discharge hose. The total amount of water discharged is
the entire capacity of the P-100 pump. All the water
from the pump plus the water picked up from the
compartment through the vacuum produced passes through
the eductor. While it may appear that something is
obtained for nothing, the action actually represents a
conversion process in which a high pressure stream of a
certain volume contains sufficient energy to move a
water stream of larger volume against a lower pressure.
This action, when compared to direct pumping, results in
increased dewatering capacities at static discharge
heads up to 55'. USE: Used in dewatering operations to
remove water from a flooded space. Used with 2-1/2 inch
fire hose for supply and 4 inch fire hose for discharge
for dewatering compartments in superstructure or spaces
forward and aft of main/auxiliary engineering spaces not
covered by the main and secondary drainage system.
Valuable for pumping out compartments with fuels since
eductor operation involves no fire/explosive hazard.
Also used to remove water from compartments where the
suction lift of a pump is exceeded. Used in connection
with a P-100 pump if the suction lift is over 20'. USE
TIP: The eductor is attached to the lower end of the
suction hose instead of the regular foot valve assembly.
A built-in foot valve and strainer are part of the
eductor. The 2-1/2" pressure hose from the three-way
gate valve (which is attached to the discharge opening
of the impeller housing) is connected to the pressure
connection of the eductor. The eductor must be fully
submerged; otherwise severe damage could occur to the P-
100 pump. The discharge from the pump unit through the
eductor raises the water part of the distance to the
pump, while the suction of the pump itself raises it the
rest of the way. Thus, lifts of more than 20' may be
accomplished. The pump must always be primed manually
whenever the eductor is used. Capacity: 265 GPM. To
prime the pump manually: a. Loosen the wing nut securing
the manual priming lever and lift the lever. b. Fill the
impeller housing and suction hose with water through the
bowl. c. Close and lock the priming lever with the wing
nut. d. Start the pump. REF: Dewatering Equipment Kit.
9-½" 26-5/8" 4-½" 2-½" 3 |
