16
9
WARNING!
If the
valve has been over
packed - DO NOT TRY
TO REMOVE THE BODY
OF THE PACKING FITTING
to relieve the excessive
packing pressure. Injury
or damage could result.
The packing chamber
retains high pressure
even if the valve is not
in service.
10
Remove the packing
adjustment screw and gently
tap against the ball check
with a 1/8 in. pin punch.
This will allow the excessive
pressure to escape past the
ball check.
Wear safety glasses and
gloves and stand to the
side of the packing fitting
centerline while relieving
packing pressure.
11
ORBIT high
temperature valves feature
an adjustable type stem
packing made possible by
utilizing a deep stuffing
box, packing gland, and
gland flange retained with
adjustment bolts and nuts.
12
Effective sealing of
pressure by the stem
packing rings is maintained
by the compression applied
to the gland flange and
retainer bolts.
13
If a stem leak occurs,
more compression can be
applied by evenly adjusting
the hex nuts on the gland
retainer bolts. Too much
compression on the
retainer can cause the
stem to bind, making the
valve hard to operate.
14
WARNING!
Never
completely remove the
hex nuts from the gland
retainer bolts while the
valve is in service and
under pressure.
Personal injury and/or
damage to property may
result.
15
For the packing
adjustment nuts to be
accessible on large bore
O.S.&Y. valves the cover
must be removed.
16
The stem packing will
not harden up to 800°F
(427°C).
This packing is very
effective, requires little
attention and is suitable for
steam, air, water, liquefied
petroleum, natural gas and
a variety of chemicals.
P R O C E S S V A L V E S
INSTALLATION, OPERATION AND MAINTENANCE
ADJUSTMENT
(CONTINUED FROM PREVIOUS PAGE)
CT-ORB-IOM/6
05/08 ION-3M
®
ORBIT
