Instruction Manual
D103302X012
A81 Valve
January 2011
8
Figure 4. Packing Arrangement Details
STANDARD PACKING
PTFE V‐RING
GRAPHITE RIBBON
GE39901‐A
GE39986‐A
SINGLE PTFE PACKING
GE40113‐A
ENVIRO‐SEAL PACKING
GRAPHITE PACKING
GE40118‐A
THESE TWO SURFACES SHOULD REMAIN PARALLEL AS YOU ALTERNATELY AND EVENLY
TIGHTEN THE PACKING NUTS (KEY 28).
NOTES:
WITH CONDUCTIVE PACKING, THE FEMALE ADAPTOR IN PTFE V‐RING PACKING
IS CARBON‐FILLED PTFE.
APPLY LUBRICANT.
1
2
3
Valves with ENVIRO‐SEAL
t
packing systems will not require this initial re‐adjustment. See ENVIRO‐SEAL Packing
System for Rotary Valves Instruction Manual (D101643X012) for packing instructions. If you wish to convert your
present packing arrangement to ENVIRO‐SEAL packing, refer to the retrofit kits listed in the parts kit sub‐section on
page 19 of this manual.
Maintenance
Valve body parts are subject to normal wear and must be inspected regularly and replaced as necessary. The frequency
of inspection and replacement depends upon the severity of service conditions. Instructions are given in this section
for: replacing trim components, changing disk rotation or valve action, and mounting and adjusting the actuator.
As used in these instructions, actuator refers to power actuators (such as pneumatic diaphragm, piston actuators, and
rack and pinion actuators).
