Installations With Cip-Systems, Cleaning In Place; Installations With Sip-Systems, Sterilising In Place; Start - Johnson Pump Top Wing Series Manual

Rotary lobe pumps
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d) When installing pump sets in flammable or explosive environments or for
handling flammable or explosive media, special consideration must be given not
only regarding the security of the drive unit enclosure, but also for the materials
used both in couplings and guards to eliminate the risk of explosion.
e) The base plate must be secured to a flat level surface to avoid misalignment and
distortion. When the baseplate is fastened in position, the alignment must be
checked again, see point b.
f) If the pump is driven by an electric motor, check that the motor and other
electrical equipment are compatible with the drive and that the wiring is correct,
i.e. Direct On-Line, Star Delta etc. Ensure that all components are correctly
electrically grounded.
2.3.1

Installations with CIP-systems, Cleaning In Place

The TopWing pumps are constructed so that they easily can be cleaned with CIP-
methods for cleaning of processing plants. To achieve the necessary fluid velocities
within the pump when cleaning we recommend a differential pressure of 2-3 bars across
the pump.
Recommendation: A built-on safety relief valve, spring loaded-air lifted, creates the
possibility to achieve the flow in the pipe work after the pump without using separate
CIP-valves and a by-pass connection.
2.3.2

Installations with SIP-systems, Sterilising In Place

TopWing pumps are capable of handling a SIP-process.
Contact Johnson Pump for information regarding the temperatures needed for the
process, as temperature has an effect on the clearances in the pump.
Equipment components may need sterilising, i.e. heating to high temperatures
(up to 140°C) to kill organisms still remaining on the surface of the equipment. Sterili-
sing is done by using steam or pressurised, heated water.
2.4

Start

Make sure that all associated equipment is clean and free from debris and that all
pipe connections are secure and correctly sealed.
For pumps fitted with flushed product seals check that all required services for
flushing purposes are in place and connected. They must give sufficient flow and
pressure for the flushing purposes. Contact Johnson Pump for advice. For seal plans,
see ''E, F, G manuals'' respectivley.
Check the lubrication for the pump and drive. The TopWing pumps are delivered
without oil and should be filled to the level of the oil level glass. See "Section 3.2''
regarding pump oil capacities and grades.
If an external relief valve is incorporated in the system, check that it is set correctly.
It is considered good practice to set the relief valve lower than the system design
pressure. After commissioning, the relief valve should be reset to the required
setting for the application. The required setting should never exceed the lower of
either the pumps maximum pressure rating or the system design pressure.
A.0500.301/314.A – IM-TW/10.00 GB (0401)
15

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