EBARA JEU - Manual (Page 7)

Ebara Fluid Handling
www.pumpsebara.com 7
(803) 327-5005 • (803) 327-5097 fax rev. 01/12
Ebara Self Priming Jet Pumps JEU
Installation
WARNING
– TO LIFT OR LOWER THE PUMP, USE A ROPE FIXED TO
THE HANDLE. NEVER USE THE ELECTRIC POWER CABLE.
a)Use plastic pipes with a certain degree of rigidity or metal pipes, to prevent
them from collapsing under the vacuum that is created during suction.
b)If using flexible pipes or hoses for suction or distribution, avoid bending
them to prevent choking or blockages due to treading on them or twisting
them.
c) Seal any connections in the pipes: air infiltration in the suction pipe have a
negative influence on pump operation.
d)The suction pipe must have a foot valve and filter to prevent the entry of
foreign bodies.
e)The end of the suction pipe must be immersed at a depth of at least twice
the diameter of the pipe; it must also be at a distance of at least one and a
half times the pipe diameter from the bottom of the tank.
f) On the discharge pipe, at the output of the pump, it is advisable to fit a no-
return valve (with quick closing, to reduce water hammer) and a gate valve,
in this order.
g)anchor the pipes to the tank, or to fixed parts, so that their weight is not
borne by the pump.
h)avoid using too many curves and valves in the system.
i) For suction depths greater than 12 feet, use a pipe with a larger diameter
to obtain better performance.
Fixed Installation
a)The pump must be placed on a level surface, as near as possible to a
source of water.
b)When positioning the pump, observe the minimum required distances
from walls, so as to allow functioning, use and maintenance operations in
safe conditions.
c) Use pipes with a suitable diameter (see page 4) fitted with threaded
couplings, and screw them onto the suction and discharge of the pump.
d)Using a drill bit or a pen, mark the centers of the four holes for fixing the
base of the pump to the surface on which it is to stand.
e)Move the pump aside for a moment and drill a hole in each center. The
holes must be sufficiently deep to take a plastic expansion plug of suitable
dimensions.
f) Check that the pump pipes are correctly positioned, then tighten the screws
until the pipes are blocked in place.