Flowserve 2 Series P5 Type - Manual (Page 6)

6
Flow Control Division
Kammer Control Valves
7.2.8 Replace the parts in reverse order.
7.2.9 Secure the actuator stem (10) from rotating with a wrench
across the flats on the stem’s lower part and torque the nut
(32) to 35 Nm. Replace and tighten the actuator stem (34)
and secure with loctite 221.
7.2.10 Release the press and replace the upper case half.
7.2.11 Insert 4 x 110 mm long (de)compression screws (21)
through the upper and lower actuator case halves and tighten
with long nuts (31) in equal measures until the casing halves
contact.
7.2.12 Insert and tighten all remaining short case retaining screws
(20) in equal measures to a torque value of 12 Nm.
7.2.13 Assemble the upper actuator as described in sections 7.2.8
to 7.2.11.
7.2.14 Secure the actuator stem (34) from rotating with a wrench
across the flats on the stem’s lower part and torque the nut
(24) to 35 Nm. Replace locknut (24) and secure with loctite
221.
7.2.15 Replace upper body
7.2.16 Insert and tighten the upper case retaining screws (20) in
equal measures to a torque value of 12 Nm.
7.2.17 As required refit the actuator assembly to the valve as
described in 1.2.
8 DISASSEMBLE AND ASSEMBLE ACTUATOR
(refer to fig. 1)
DANGER: Actuators with “spring-to-close” action can be
disassembled and reassembled by using a press or long
(de)compression screws. A suitable press is required to
disassembled and reassemble actuators with “spring-to-
open” action or to reverse the actuator action.
8.1 DISASSEMBLE ACTUATOR
8.1.1 Actuator action spring-to-close
8.1.1.1 As required remove the actuator from the valve as described
in section 1.1.
8.1.1.2 If long (de)compression screws are not already fitted to the
actuator: remove 4 equally spaced case retaining screws
(20).
8.1.1.3 Insert 4 x 110 mm long (de)compression screws (21) and
tighten the nuts hand tight.
8.1.1.4 Remove all the remaining short case retaining screws
(20).
8.1.1.5 Unscrew the long compression screws (21) in equal
measures until the actuator springs are fully decompressed
and the upper case is loose.
8.1.1.6 Remove the upper case half.
8.1.1.7 Secure the actuator stem (34) against rotating with a wrench
across the flats on the stem’s lower part and remove the lock
nuts (24).
8.1.1.8 Remove following parts:
spacer (25), plate (26), spring plate (27), spring set (37),
piston (29), spring plate (28), diaphragm (31) and washer (1)
8.1.1.9 Disassemble the lower actuator as described in sections
8.1.1.3 to 8.1.1.8.
8.1.1.10 With a hooked spanner loosen and remove the slotted nut
(9).
8.1.1.11 Remove the guide (4) and upper yoke plate (8).
7.1.3 Insert 4 x 110 mm long (de)compression screws (21) and
tighten the nuts hand tight.
7.1.4 Remove all the remaining short case retaining screws
(20).
7.1.5 Unscrew the long compression screws (21) in equal
measures until the actuator springs are fully decompressed
and the upper case is loose.
7.1.6 Remove the upper case half.
7.1.7 Secure the actuator stem (34) against rotating with a wrench
across the flats on the stem’s lower part and remove the lock
nuts (24).
7.1.8 Remove following parts:
spacer (25), plate (26), spring plate (27), spring set (37),
spring plate (28), piston (29) diaphragm (31) and washer
(1)
NOTE: It is not necessary to remove the nut (9). The body
halves (6) with spacer ring (35) and intermediate ring (36)
can be removed as an assembly.
7.1.9 Disassemble the lower actuator assembly as described in
sections 7.1.2 to 7.1.8.
7.1.10 Replace the parts in reverse order.
7.1.11 With a suitable press compress the spring set.
7.1.12 Secure the actuator stem (10) from rotating with a wrench
across the flats on the stem’s lower part and torque the nut
(24) to 35 Nm. Replace and tighten the actuator stem (34)
and secure with loctite 221.
7.1.13 Replace the upper case half.
7.1.14 Insert and tighten the upper case retaining screws (20) in
equal measures to a torque value of 12 Nm.
7.1.15 Assemble the upper actuator as described in sections 7.1.10
to 7.1.12.
7.1.16 Secure the actuator stem (34) from rotating with a wrench
across the flats on the stem’s lower part and torque the nut
(24) to 35 Nm. Replace locknut (24) and secure with loctite
221.
7.1.17 Replace the upper case half.
7.1.18 Insert and tighten the upper case retaining screws (20) in
equal measures to a torque value of 12 Nm.
7.1.19 As required refit the actuator assembly to the valve as
described in section 1.2.
7.2 Reverse actuator action from spring-to-open to spring-to-
close
7.2.1 As required remove the actuator from the valve as described
in section 1.1.
7.2.2 Remove all case retaining screws (20).
7.2.3 Remove the upper case half (22).
7.2.4 With a suitable press compress the spring set.
7.2.5 Secure the actuator stem (34) against rotating with a wrench
across the flats on the stem’s lower part and remove the lock
nuts (24).
7.2.6 Remove following parts:
washer (1), diaphragm (31), piston (29), spring plate
(28), spring set (37), spring plate (27), plate (26) and
spacer (25).
NOTE: It is not necessary to remove the nut (9). The body
halves (6) with spacer ring (35) and intermediate ring (36)
can be removed as an assembly.
7.2.7 Disassemble the lower actuator as described in sections
7.2.2 to 7.2.6.