Table of Contents
Advertisement
Series KK/F, KKP/F, KK/FU, KKP/FU
9
Maintenance
♦ All repair work is to be performed by qualified person-
nel using the appropriate tools.
♦ For the arrangement, designation and item numbers of
all parts of the valve, see Section 10.
♦ Spare parts are to be ordered with all the details in acc.
with the valve identification.
♦ Only original spare parts may be installed.
♦ To prevent leaks, a regular check of the connection
screws should be made in line with the operating re-
quirements.
For tightening torques, see Section 1.2.
9.1
Dismantling KK/F, KKP/F
9.1.1 Dismantling seat ring and ball
♦ See also sectional drawings in Section 10.
♦ Place ball valve on a soft, clean surface.
♦ Undo cover holder 111.
♦ Remove transition cover 109 and seat rings 401.
ATTENTION: Mark the inside and outside of the transi-
tion cover with a felt-tip pen!
♦ Move ball 200 into the "closed position" and remove
from the body centre piece 103 by lifting and turning
it.
9.1.2 Dismantling of the packing gland and
stem DN 25-100
See sectional drawings in Section 10.1 and 10.4.
After dismantling the seat rings and ball, as described in
Section 9.1.1, the packing gland and stem are dismantled
as follows:
♦ Unscrew hex. nut 920/1.
♦ Dismantle lever 203 and actuator 850.
♦ Undo hex. screw 901/1 of the grounding rope 532. Un-
screw with the design with actuator.
♦ Undo hex. nut 920/2 and remove cup spring cage.
♦ Force stem 202 downwards with rubber mallet and re-
move.
♦ Remove thrust ring 405 and ring 500.
♦ Dismantle packing rings 402/1.
9520-010-en
Revision 15
TM 9549
Edition 11/2018
9.1.3 Dismantling of the packing gland and
stem for DN 150, lever
See sectional drawing in Section 10.3.
After dismantling the seat rings and ball, as described in
Section 9.1.1, the packing gland and stem are dismantled
as follows:
♦ Undo hex. screws 903/1 and hex. nuts 920/3; as a re-
sult, the cup spring is 950/1 are relieved.
♦ Unscrew hex. screws 901/2 and then hex. socket screw
914/1, and remove lever 203, disc 550 and lever stop
577.
♦ Undo hex. screw 901/1 of the grounding rope 532.
♦ Remove pressure plate 524, cup spring 950/1, plain
bearing 300 and support disc 232.
♦ Force stem 202 downwards with rubber mallet and re-
move.
♦ Turn profiled sheet 533 to the side.
♦ Remove thrust ring 405 and ring 500.
♦ Dismantle packing rings 402/1.
9.1.4 Dismantling of packing gland and stem
for DN 150, actuator
See also sectional drawing in Section 10.7.
After dismantling the seat rings and ball, as described in
Section 9.1.1, the packing gland and stem are dismantled
as follows:
♦ Dismantle actuator 850 and bracket 510.
♦ Undo hex. screws 903/1 and hex. nuts 920/3; as a re-
sult, the cup spring 950/1 is relieved.
♦ Undo hex. screws 901/2, force spring-type slotted pins
939/1 out with a rubber mallet, dismantle coupling 804.
♦ Undo hex. socket screw 914/1; remove disc 550 and po-
sition indicator 531.
♦ Remove pressure plate 524, cup spring 950/1, plain
bearing 300 and support disc 232.
♦ Force stem 202 downwards with rubber mallet and re-
move.
♦ Turn profiled sheet 533 to the side.
♦ Remove thrust ring 405 and ring 500.
♦ Dismantle packing rings 402/1.
Page 10
Advertisement
Table of Contents
