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BODY FLANGE
SEAT RING SCREWS
INTO CAGE
P1507
Figure 3. Trim Package Removal
slots (Figure 5) and wrap a strap wrench around
a cage, or insert a soft bar through the windows
of the cage. Proceed to step 6 if no further
maintenance is necessary.
5. To replace the body flange (key 2) or gain access
to the spring (key 9), indicator stem (key 10),
stem O-ring (key 7), spring seat (key 28) or
E-ring (key 23), remove the indicator protector
(key 19) and indicator scale (key 18). Since some
compression is left in the spring, carefully remove
the flanged nut (key 22) and hex nut (key 8). Insert
a screwdriver through the O-ring retainer (key 6)
to remove the stem O-ring without removing the
retainer. If necessary, unclip the E-ring from the
indicator stem.
6. As required, replace and lightly lubricate the body
flange gasket (key 4), cage O-ring (key 17), seat
ring port seal (key 12) and the cage upper seal
(key 15). Install the dry port and upper seals in their
retaining slots with the grooved side facing out. After
the dry seals are installed into their retaining slots,
lightly lubricate the exposed portion of the seals and
apply a light coat of lubricant to the cage and seat
ring threads. Also lubricate any other surfaces as
necessary for ease of installation. No further main
valve maintenance is necessary if only the indicator
fitting and attached parts were removed.
7. Use the valve body as a holding fixture during this
step as shown in Figure 5. Insert the valve plug
(key 16) into the body flange (key 2). Then loosely
screw the cage (key 11) into the body flange and
slowly work the upper seal (key 15) by untightening
and tightening the cage. This will allow the upper
seal to be properly seated. Securely tighten the
cage using a strap wrench wrapped around the
cage. Loosely screw the seat ring (key 13) into
the cage and slowly work the port seal (key 12) by
untightening and tightening the seat ring. This will
INDICATOR PROTECTOR (KEY 19)
CAGE SCREWS INTO
BODY FLANGE
W3116
allow the port seal to be properly seated. After the
port seal is seated, use a wrench or similar tool (see
Figure 5) to tighten the seat ring, then back off the
seat ring about 1/8 in. / 3.2 mm.
8. Remove the upside-down body flange (key 2) if it was
anchored on the body (key 1). Lightly coat the cage
(key 11) seating surfaces of the valve body web and
the body flange seating surfaces of the valve body
neck with a good grade of general-purpose grease.
Install the body flange on the body, and secure it
evenly with the cap screws (key 3) or stud bolt nuts
(key 3). Install the pipe plug (key 31) in the side
tapping of the flange for proper operation.
9. Make sure that the flange (key 2) and stem O-ring
(key 7) and the retainer (key 6) are installed in the
indicator fitting (key 5). Orient the spring seat (key 28)
as shown in Figure 6, and attach it with the E-ring
(key 23) to the slotted end of the indicator stem
(key 10) then install the spring (key 9).
10. Be careful not to cut the stem O-ring (key 7) with the
stem threads, install the indicator fitting (key 5) down
over the indicator stem (key 10) until resting on the
spring (key 9). Install the hex nut (key 8) and then the
flanged indicator nut (key 22) on the indicator stem,
pushing on the fitting if necessary to provide sufficient
stem thread exposure. To maintain clearance for
indicator part installation, draw up the spring seat
(key 28) by turning the hex nut down on the stem until
the threads bottom.
FLANGE NUT (KEY 22)
RETAINER (KEY 6)
STEM O-RING (KEY 7)
E-RING (KEY 23)
PIPE PLUG (KEY 31)
UPPER SEAL (KEY 15)
PORT SEAL (KEY 12)
Figure 4. Exploded View of Full-Capacity Trim
Package Assembly
Type 1290
INDICATOR SCALE (KEY 18)
HEX NUT (KEY 8)
INDICATOR FITTING (KEY 5)
INDICATOR FITTING
O-RING (KEY 21)
SPRING (KEY 9)
INDICATOR STEM (KEY 10)
SPRING SEAT (KEY 28)
BODY FLANGE (KEY 2)
VALVE PLUG (KEY 16)
CAGE (KEY 11)
CAGE O-RING (KEY 17)
SEAT RING (KEY 13)
7
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