Types 63EG and 1098-63EGR
10
W2772
W3012
Figure 8.
Easy-Maintenance Trim
Figure 9.
Seat Ring and/or Cage Removal
Using Body as a Holding Fixture
flat to remove any trapped air. Lubricate the
seat ring threads and firmly tighten the seat ring
(key13) into the cage (key 11) using a bar. Use a
back and forth motion during tightening to ensure
the seal doesn’t wrinkle. Back out the seat ring
(key 13) 1 in. / 2.5 cm after tightening.
8. Install the plug O-ring (key 20) and piston ring
(key 14) onto the valve plug (key 16). Insert the
valve plug into the body flange (key 2).
9. Apply a minimal amount (2 to 3 drops) of silicon
oil to the upper seal (key 15) and install it flat
side down in the gland in the cage (key 11). Run
a finger around the upper seal (key 15) until
it is completely flat to remove any trapped air.
Lubricate the cage threads and using a bar or
strap wrench, firmly tighten the cage (key 11) into
the body flange (key 2). Use a back and forth
motion during tightening to ensure the seal doesn’t
wrinkle. Back out the cage (key 11) 1 in. / 2.5 cm
after tightening.
10. Remove the upside-down body flange if it was
anchored on the body. Coat the cage 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 or hex nuts. With a
Type 63EG main valve, install the pilot and its pipe
nipple and connect the pilot tubing.
Type EGR Main Valve Cap Screw (key 3) Torque
11.
On a main valve without travel indicator,
install
the spring (key 9) and make sure the flange O-ring
(key 21) is installed on the flange plug (key 27).
Install the flange plug; if necessary, compress
the spring with it enough to ensure secure
engagement of plug and body flange threads
before continuing with final tightening of the plug.
On a main valve with travel indicator,
make
sure the flange and stem O-rings (keys 21 and 7)
and the O-ring retainer (key 6) are installed in
the indicator fitting (key 5). Orient the spring
seat (key 28) as shown in Figure 11 and attach it
with the E-ring (key 23) to the slotted end of the
indicator stem (key 10). Install the spring (key 9)
on the spring seat.
SIZE
TORQUE
NPS
DN
Ft-Lbs
N•m
1
25
75 to 95
102 to 129
2
50
55 to 70
75 to 95
3
80
100 to 130
136 to 176
4
100
160 to 200
217 to 271
6, 8 x 6, 12 x 6
150, 200 x 150,
300 x 150
275 to 300
373 to 407
