BTS BTKF-K Serie Manual Del Usuario página 49

This operation should be performed in reciprocal two places in horizontal and vertical
plane. Adjustment errors can be in horizontal and vertical plane. Errors in vertical
plane are eliminated by putting thin steel sheets under feet of pump or motor, errors
in horizontal plane are eliminated by making adjustments in spaces of fixing holes or
sliding motor in horizontal plane.
- Form and order of clutch adjustment are displayed in Figures 3-1,3-2,3-3 and 3-4.
ATTENTION: Adjustments should be checked after changes. Because an
adjustment which is made in one direction may make other adjustment in other
direction faulty.
Installation of Pipe Equipment
Never use the pump as an anchorage point or as a carrier for the piping.
-The pipelines should be supported very near the pump. It must be checked that any
weight, stress or strains on the piping system should not be transmitted to the pump.
Therefore after completing the piping installation, the bolt and connection on the
suction and discharge nozzles must be loosened to ensure that there is not any
stress on the piping system transmitted to the pump. The piping-induced forces and
moments acting on the pump nozzles (e.g. due to torsion and/or thermal expansion)
must not exceed the permissible forces and moments given in section K. An
excessive, impermissible increase in the pipeline forces may cause leaks on the
pump where liquid handled can escape into the atmosphere. Danger of life when hot
liquids are handled.
-The nominal sizes of the pump suction and discharge nozzles are no guide to the
corrects sizes of the suction and discharge piping. The nominal bores of the pipes
should be same as or greater than those of the pump nozzles. Never use pipes or
accessories which have smaller bore than the pump nozzles.
-Pipe joints should be by means of flanges with flange gaskets of proper size and
material. Flange gasket must be centered between the flange bolts in a such way
that there is no interference with the flow of the liquid.
-Thermal expansions of the pipework and excessive vibrations should be
accommodated by suitable means so as not to impose any extra load on the pump
(Fig. 4)
-The suction piping must not present any features likely to promote the formation of
air pockets. Therefore the suction piping should have a slight downward slope
towards the pump (Fig. 4)
-An isolating valve should be installed in the suction pipe as close to the pump as
possible. This valve should always remain fully open while the pump is running and
must not be used to regulate the flow (Fig. 4)
-A control or shut-off valve should be installed in the discharge pipe, as close to the
pump as possible, to
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