Pompetravaini TRSK 2002/1, Operating Manual, Page: 11 / 32

Operating manual liquid ring vacuum pumps TRVK - TRSK
11
6 - STORAGE INSTRUCTIONS
After receipt and inspection, if not immediately installed, the unit must be repackaged and stored.
For a proper storage proceed as follows:
- store the pump in a location that is closed, clean, dry and free of vibrations
- do not store in areas with less than 5°C temperature (for lower temperature it is necessary to completely drain the
pump of any liquids that are subject to freezing)
FREEZING DANGER!
Where the ambient temperature is less than 5°C it is recommended to drain the pump, piping, separator,
heat exchanger, etc. or add an anti-freeze solution to prevent damage to the equipment.
- fill the pump with a rust-preventative liquid that is compatible with the pump gaskets and elastomers. Rotate the
shaft by hand to impregnate all internal surfaces. Drain the excessive liquid from the pump and associated piping
(see chapter 11).
Please note that the pumps with cast iron internal parts have been treated at the factory, prior to shipment, with a
rust-preventative liquid: this liquid is capable of protecting the pump against rust for a period of 3 to 6 months.
A further solution, for long term storage, is to fill the pump with the rust inhibitor, rotate the pump shaft by hand to
eliminate any air pockets (the liquid must be suitable with gasket, elastomers and pump materials).
- plug all openings that connect the pump internals to the atmosphere
- protect all machined surfaces with an anti-rust material (grease, oils, etc.)
- cover the unit with plastic sheet or similar protective material
- rotate pump shaft at least every three months to avoid possible rust build-up or seizing
- pump accessories should be subjected to similar procedure.
7 - MOUNTING AND ALIGNMENT INSTRUCTIONS
7.1 - ASSEMBLY OF BASE MOUNTED PUMP UNIT
If the pump has been purchased with free shaft end, a proper baseplate is required to mount the pump/motor assembly.
The baseplate must be properly designed for maximum rigidity to prevent vibrations and distortions. It is recommended
the use of a fabricated baseplate manufactured with rigid “U” shaped channel (fig. 16 illustrates an example).
When the pump has been purchased without the electric motor, it is then required to select the proper motor before
proceeding to the installation of the unit. Selection of motor must consider the following:
- maximum power absorbed by the pump over the total operating range
- pump operating speed (RPM)
- available power (Hertz, voltage, etc.)
- motor enclosure type (CVE, AD-PE, ODP, TEFC, EX.PR., etc.)
- motor mount (B3, B5, horizontal, vertical, C-flange, D-flange, etc.).
Flexible couplings are selected considering:
- nominal motor horsepower
- motor operating speed
- coupling guard must meet safety standards as dictated by EN 294, OSHA, etc.
Flexible couplings must be properly aligned. Bad alignments will result in coupling failures and damage to pump and
motor bearings.
Assembly instructions for MONOBLOCK design are listed on paragraph 7.3 steps 1, 2, 4, 5, 6.
Assembly instructions for PUMP-MOTOR ON BASEPLATE are listed on paragraph 7.3 steps 7, 1, 8, 5, 9, 10, 11.
For the belt drive alignment procedures follow instructions in paragraph 7.4.
7.2 - ALIGNMENT PROCEDURES FOR MONOBLOCK AND FOR PUMP/MOTOR ASSEMBLY ON BASEPLATE.
The pump/motor assembly is properly aligned by POMPETRAVAINI prior to shipment.
It is however required to verify the alignment prior to the start-up. Misalignment can occur during handling, transportation,
grouting of assembly, etc.
For alignment procedures of MONOBLOCK design see paragraph 7.3 steps 3, 4, 5, 6.
For alignment procedure of BASEPLATE design see paragraph 7.3 steps 7, 5, 9, 10, 11.
PLEASE NOTE : Coupling sizes and permissible coupling tolerances listed in this manual are applicable to the particular
coupling brand installed by POMPETRAVAINI as a standard. For sizes and tolerances of other type
of couplings, follow the instructions given by their respective manufacturer.
7.3 - ALIGNMENT INSTRUCTIONS
NOTICE: Alignment should be done at ambient temperature, obviously with power to the motor disconnected and
following the safety procedures to avoid accidental starting (see chapter 2).