© Copyright 2006 MOGAS Industries, Inc. 281.449.0291 www.mogas.comSRD-1004 3
The new packing ring set will contain 2 anti-extrusion
rings (09B) and 2 or 3 packing rings (09A). (Refer to the
table below to verify the correct packing ring quantity.)
These rings are supplied with a skive cut. Assemble
the rings as shown. Position the skive cut on each ring
opposite, alternating the adjacent skive cut rings. All
rings should fit into the packing box.
Carefully bend each fragile ring, spiraling it around the
stem (05), then insert and evenly press into the packing
box.
DO NOT try to open ring wide enough to install the
ring from the front. Instead, snake it around the stem,
minimizing how wide it must be opened. Forcing the
ring onto the stem frontally usually causes the ring to
break.
Use an air hose to clean debris from packing box
before installing new packing rings.
Note:
Always wear a face shield or mono-goggles to protect
eyes from flying debris.
Use gland thruster (07B) as tool to slide each ring into
packing box. Continue this process until all rings are
positioned correctly in the packing box.
Quantity of Valve Packing Rings
Valve Bore 1500# 3100# 4500#
0.63 inches 2 3 3
1.00 inches 3 3 3
1.3 inches 3 3 —
1.5 inches 3 — —
REPLACING STEM PACKING
Skive Cut
Skive Cut
Skive Cut
Skive Cut
Skive Cut
09A
09A
09A
09B
09B
07B
5
6
7
8
