Fisher EZ easy-e Instruction Manual page 7

Instruction Manual
D100401X012
If the packing is relatively new and tight on the stem, and if tightening the packing flange nuts does not stop the
leakage, the valve stem may be worn or nicked so that a seal cannot be made. The surface finish of a valve stem is
critical for making a good packing seal. If the leakage comes from the outside diameter of the packing, the leakage
may be caused by nicks or scratches around the packing box wall. If performing any of the following procedures,
inspect the valve stem and packing box wall for nicks and scratches.
An illustration of a HIGH‐SEAL live‐loaded packing system is shown in figure 6. Illustrations of ENVIRO‐SEAL live‐loaded
packing systems are shown in figures 7, 8, and 9.
Figure 5. Graphite Ribbon/Filament Packing Arrangements for Plain and Extension Bonnets
A5514‐2
12.7 mm
9.5 mm
(1/2 INCH)
(3/8 INCH)
STEM
STEM
A5513-2/IL
9.5 mm
12.7 mm
(3/8 INCH)
(1/2 INCH)
STEM
STEM
DOUBLE ARRANGEMENTS
NOTE:
0.102 mm (0.004 INCH) THICK SACRIFICIAL ZINC WASHERS:
1
USE ONLY ONE BELOW EACH GRAPHITE RIBBON RING.
PACKING FOLLOWER
(KEY 13)
GRAPHITE
PACKING RING (KEY 7)
GRAPHITE
PACKING RING (KEY 7)
LANTERN RING (KEY 8)
PACKING BOX
RING (KEY 11)
19.1 mm
(3/4 INCH)
STEM
SINGLE ARRANGEMENTS
PACKING FOLLOWER
(KEY 13)
GRAPHITE
PACKING RING (KEY 7)
GRAPHITE
PACKING RING (KEY 7)
LANTERN RING (KEY 8)
PACKING BOX
RING (KEY 11)
19.1 mm
(3/4 INCH)
STEM
EZ Valve
November 2017
RIBBON
FILAMENT
RIBBON
FILAMENT
7