Flowserve 3 Series P7 Type - Manual (Page 7)

7
Flow Control Division
Kammer Control Valves
7.2 ASSEMBLE ACTUATOR
Assemble actuator stem seal and guide
7.2.1 Fit bushing (9) and wiper ring (11) to spring and
diapragm housings (10/39).
7.2.2 Enter backup ring (9), O-ring (21) and back up ring
(9) from the other side of diaphragm housing.
7.2.3 Fit rings (7) to spring and diapragm housings and
calk in 4 positions with a punch.
Assemble actuator stem and diaphragm
7.2.4 Clamp the lower part of the actuator stem (42) in a
vice (protect the stem against surface damage).
7.2.5 Fit split ring (5) to lower groove and replace plate
(4) with O-ring (21).
7.2.6 Fit diaphragm plate (1), plate (4), sleeve (34) and
adjusting sleeve (35) to actuator stem (42).
7.27 Screw two slotted nuts (36) with two locking plates
(37) between them onto adjusting sleeve (35). Re-
place the sleeve (38) and screw down the slotted
nuts until the split ring (5) can be fitted into the
groove in the actuator stem.
7.2.8 Screw the top slotted nut (36) anticlockwise
against the sleeve (38) until the diaphragm plate (1)
is tightly clamped to the actuator stem (42). Secure
the top slotted nut with the second slotted nut and
in turn secure both nuts by bending the locking
plates.
7.2.9 Reverse the assembly (diaphragm side upward);
Replace the diaphragm (2) and diaphragm plate (3)
and srcure with 24 screws M12x30 (22) to the dia-
phragm plate (1) (torque value see table 2).
Assemble actuator
7.2.10 Place the sleeve (6) in the centre of the diaphragm
housing (10).
7.2.11 Fit the actuator stem assembly to the diaphragm
housing (10) ensuring that the outer bead of the
diaphragm sits correctly
7.2.12 Replace the washer (24).
7.2.13 Place the spring packs (23) on the washers (24) .
7.2.14 Place the plate (33) over the spring packs (23).
7.2.15 Replace the spring housing assembly (39) with cap
(43) and eye bolt (46) and secure with 36 screws/
nuts M16 (41/20) (torque value see table 2).
7.3 Inspection
Function:
Conduct five open / close cycles and check for
smooth operation.
Leakage:
Test pressure 6,6 bar (hold time 13 min).
Spray actuator stem entries and all housing joints
with leak spray and check for leaks.
Flange 41, 20 120 Nm
Diaphragm ring 22 60 Nm
Table 2: Torque values
Fastner Torque value
Disassemble actuator stem seal and guide
7.1.9 Remove calked ring (7).
7.1.10 Remove seal kit consisting of backup rings (8) and
O-ring (21).
7.1.11 Remove wiper ring (11) and bushing (9).
7.1.12 Remove calked ring (7), bushing (9) and wiper ring
(11) from Spring housing (39).
Pos.