KSB WK 100, Руководство пользователя

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WK
Size Number Torque Number Torque
of stages of stages
40 1-10 7.5 kpm 11-16 8.0 kpm
50 1-10 8.5 kpm 11-15 10.0 kpm
65 1-10 12.0 kpm 11-14 15.0 kpm
80 1-8 20.0 kpm 9-12 23.0 kpm
100 1-8 25.0 kpm 9-11 27.0 kpm
125 1-6 30.0 kpm 7-10 32.0 kpm
150 1-6 35.0 kpm 7-8 37.0 kpm
Fig. 87 Tightening torque for the connection rods
1kgm = 1 kpm
8. Insert tie rods (905) with nuts (920.1) and washers (550)
from the suction end.
9. At the suction end, screw on at the hex. nuts (920.1) on
connection rods (905) and screw them down to median
position. Insert the tie rods (905) from the suction end,
after having slipped on the washers.
9a. PUmps which operate under conditions of extreme
temperature fluctuations (in excess of 50
0
C within a 30
minute interval) can be subjected to unequal thermal
expansion at the casings and tie rods, which can result in
leakage. In order to compensate these expansions, a
stack of cup springs should be inserted between the nut
and suction casing on each connection rod. The number
of cup springs in the stack will depend on the compression
pressure required, and is determined by the pump
manufacturer (see Fig. 88).
9b. The washer (550.1), sleeve (520.1), stack of cup springs
(950) and spring cage (483) are all mounted on the tie
rods (905) between the suction casing (106) and the hex.
nut (920.1). The cup springs should be lightly coated with
oil before insertion. The hex. nut (920.1) should be
screwed on by hand. The tie rods (905) should be fitted
as described under point 10 below. The hex. nut (920.1)
at the suction end should be tightened until abbutment is
achieved.
If the pump should become slightly distorted by uneven
tightening, the hex. nuts (920.1) at the suction end should
be slackened slightly.
10. At the discharge end, the screw threads of the tie rods
and the washers should be coated with molybdenum
disulphide. The hex. nuts (920.1) should bbe tightened
by hand with a standard short spanner to ensure intimate
contact of the stage casings (108) at their sealing faces.
11. Slip the spacer sleeve onto the shaft until it abuts against
the hub of the last stage impeller.
12. Place the pump on the baseplate. The pump feet must
seat flush on the baseplate. Tighten hex. nuts (920.1) on
the tie rods at the discharge end evenly on the cross.
13. Tighten nuts (920.1) on the tie rods (905) at the discharge
end. Then slacken the nuts at the discharge end again
until the seating is loose, and tighten them again by hand
with the aid of a short hammering spanner until contact is
established. Then tighten the nuts firmly with the aid of a
torque spanner (see Fig. 87).
12.3 Assembly of Shaft Seal
12.3.1 Pump construction with Soft packed Stuffing Box
1. Slip shaft protecting sleeve (524.2) onto shaft (210) after
insertion of O-ring (412.3), and pull it tight against spacer
sleeve (525.2) (see Fig. 89).
Fig. 89 Mounting the shaft protection sleeve
2.
Mount stuffing box housing (451) with flat gasket (400.3).
In the case of pumps equipped with cooled stuffing boxes,
mount the stuffing box housing (451) together with cooling
cover (165) (see Fig. 90).
Fig. 90 Mounting the stuffing box housing
Fig. 88 Stack of cup springs.
483 520.1 550.1
920.1 950 106 905
Part No. Designation
106 Suction casing
483 Spring cage
520.1 Sleeve
550.1 Washer
905 Tie rod
920.1 Hex. nut
950 Stack of cup springs
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