ESI-6121 Rev D © Copyright 03/2022 MOGAS Industries, Inc.
www.mogas.com
ESI-6121 Rev D © Copyright 03/2022 MOGAS Industries, Inc.
www.mogas.com
46
47
INSERT STEM
Insert stem
05
through body
02
cavity and through
top stem bore.
STEM ACCESS PORT
Some stems will not fit through the body cavity,
requiring a stem access port in the valve body for
stem insertion.
5
Verify that the keyway nearest the stamped
T
on the
end of the valve stem
05
is oriented properly (‘T’ to
the top).
When the valve is
closed
, the keyway nearest the
stamped
T
should face the end connection
03
, or
body-bolting side of valve.
When the valve is
open
, the keyway nearest the
stamped
T
should be 90° counter-clockwise from the
end connection
03
, or body-bolting side of the valve.
STEM ORIENTATION
6
‘T’ to the top.
Re-Assembly
Re-Assembly
8
PACKING RING SET
The new packing ring set will contain four to five rings
total (two rope-like anti-extrusion rings
09B
, two to
three die-form stem packing rings
09A
).
Note:
Refer to Bill of Materials supplied with each individual valve serial
number for specific quantity.
STABILIZE STEM
Use a jacking bolt (or similar tool) to maintain light
pressure between bottom of stem and inside of valve
body cavity. This prevents movement of the stem
while installing packing rings.
CAUTION!
To prevent damage to inner stem seals, do not use
excessive force when using jack bolt (or similar
tool).
7
!
Coated sides
of inner stem
seals face each
other
09B
09A
INSTALL STEM SEALS
Place inner stem seals
08
on stem
05
.
CAUTION!
Inner stem seals are coated on one side; the
chamfer side is the uncoated side. Install with
coated sides facing each other.
4
!