SPP Pumps Eurostream - Manual (Page 6)

Manual No/Rev
W22-001E / 9
Operators Instructions for
Eurostream Centrifugal Pumps
Our policy is one of continuous improvement and we reserve the right to alter specifications at any time
Page 6 of 20
flow through them to below 0.6 m/s.
The suction pipe work must be flushed clean
to ensure that site debris is not drawn into
the pump when it is commissioned.
4.7 Discharge Pipework
The bore of the discharge pipe should be
sized to ensure a flow velocity of 2.5 to 3 m/s
is not exceeded. This is usually one size
larger than the discharge branch. Pipework
should be as short and straight as possible
to reduce friction head loss.
A non-return valve is usually fitted to prevent
the pump from excessive back pressure and
reverse rotation and a discharge valve is
usually fitted to regulate the flow and allow
for inspection and maintenance on the
pump.
The suction and discharge pipework must be
independently supported and positioned
such that no excessive forces and moments
are exerted on the pump flanges.
Failure to support suction
and
delivery pipework
may result in distortion of the pump casing,
with the possibility of early pump failure.
Preferred Pipework
4.8 Foundations
The motor feet or slide rails must be secured
to substantial foundations with suitable
foundation bolts to minimise vibrations. After
the pump has run for about 200 hours, the
foundation bolts should be checked for
tightness
5. Commissioning and Operation
5.1 Commissioning Checks
These checks must be done after first
installation and after pump maintenance that
required removal of the rotating assembly.
Abrasion and Entrapment
Hazard
Do NOT touch any moving or
rotating parts Guards are provided to
prevent access to these parts, where they
have been removed for maintenance they
MUST be replaced before operating the
equipment.
Check that the rotating assembly is free to
rotate by hand before connecting the power
supply. Also check that the piping system
has been properly connected with all joints
tightened and instrumentation is in position.
Check that the pump is
primed. Pumps should never be run dry as
the pumped liquid acts as a lubricant for the
close running fits surrounding the impeller
and damage will be incurred.
Prime the pump using an ejector, exhauster
or vacuum pump. If a foot valve is used in
the suction line the pump may be primed by
venting and filling the casing with liquid.
Connect the electrical supply to the pump
unit. Momentarily switch on motor and
check direction of rotation. This should be
such that the pump assembly turns
clockwise when viewed on the driven end.
For three phase electric motors, if direction
of rotation is incorrect, disconnect the
supply and change over two of three supply
wires.
5.2 Starting Procedure
BEFORE A EUROSTREAM PUMP IS
STARTED ALWAYS ENSURE THAT THE
SUMP IS FILLED TO THE CORRECT
LEVEL WITH LIQUID, AND THAT ANY
LEVEL CONTROLS ARE FUNCTIONING
CORRECTLY.
Abrasion and Entrapment Hazard
Do NOT touch any moving or
rotating parts Guards are provided
to prevent access to these parts, where they
have been removed for maintenance they
MUST be replaced before operating the
equipment.
ATTENTION
ATTENTION