TapFlo Metal Series, Оригинальная инструкция, Страница: 15 / 56

2. OPERATION
IOM manual Tapflo Metal Series
15
2. OPERATION
2.1. Before starting the pump
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Make sure the pump is installed according to the installation instruction (chapter 1).
➢
Before operating the pump, make sure that the valve on the suction side pos. 6 is
opened.
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Filling of the pump with liquid before start is not necessary.
➢
When installation is new or reinstalled, a test run of the pump with water should be
conducted to make sure that the pump operates normally and does not leak.
➢
When installation is new or reinstalled, check the pump housing nuts tightening torque
(see chapter 6.5
Tightening torques ). After approximately one week of operation, the
torque should be checked again. Please contact Tapflo for further tightening
intervals recommendation. This is important to prevent possible leakage.
2.2. Starting and operation
➢
Open the discharge valve.
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Note! Considering the suction capacity when air is still in the suction pipe, it is
recommended to start with low air pressure/flow (slowly) at the beginning. This
is not necessary if the pump is filled with liquid before start.
➢
When the pump has been filled with liquid, the air pressure/flow may be raised in order
to increase the suction capacity of the pump.
➢
The performance of the pump can be adjusted through the air supply by using a
needle valve and a pressure regulator. The performance can also be adjusted by
normal flow control on the discharge side of the system.
2.2.1. Dry running
Although the pump is prepared for dry running it is important to have in mind that long
periods of dry run may cause damage to the air valve and circlips. Also an empty pump
should operate at low speeds
– controlled by a needle-valve.
2.2.2. Optimization of the pump lifetime
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Running at full frequency (maximum air pressure/flow) continuously will cause
premature wear of the components. When there is possibility of the pump running dry
or/and at full frequency it is recommended to use an air valve with a PET piston. As a
general rule, we recommend to run at half of the maximum capacity of the pump. For
instance, a T120 pump should run continuously at maximum 80 l/min.
➢
As stated in chapter 0 Tapflo recommends to use an appropriate air treatment system
in order to extend the pump’s li fetime.