
Instruction Manual
D101640X012
CV500 Valve
June 2017
12
Figure 4. Packing Arrangements (Continued)
PTFE/COMPOSITION OR GRAPHITE ENVIRO‐SEAL
PACKING ARRANGEMENTS
C0774‐1
SINGLE PTFE PACKING
IN A STANDARD DEPTH BOX
DOUBLE PTFE PACKING WITH
LEAKOFF AND IN A DEEP
PACKING BOX
DOUBLE PTFE PACKING IN
A STANDARD DEPTH BOX
GRAPHITE PACKING
IN A STANDARD DEPTH BOX
ANTI-EXTRUSION
RING (KEY 106)
ANTI-EXTRUSION
RING (KEY 106)
ANTI-EXTRUSION
RING (KEY 106)
ANTI-EXTRUSION
RING (KEY 106)
ANTI-EXTRUSION
RING (KEY 106)
ANTI-EXTRUSION
RING (KEY 109)
ANTI-EXTRUSION
RING (KEY 109)
ANTI-EXTRUSION
RING (KEY 109)
ANTI-EXTRUSION
RING (KEY 109)
PACKING RING
(KEY 108)
PACKING RING
(KEY 108)
PACKING RING
(KEY 108)
LANTERN RING
(KEY 110)
LANTERN RING
(KEY 110)
PACKING BOX RING
(KEY 107)
PACKING BOX RING
(KEY 107)
PACKING BOX RING
(KEY 107)
PACKING BOX RING
(KEY 107)
PACKING BOX RING
(KEY 107)
GRAPHITE PACKING SET
(KEY 105)
PACKING RING
(KEY 108)
PACKING FLANGE
STUD (KEY 100)
PACKING FLANGE
NUT (KEY 101)
PACKING FLANGE
(KEY 102)
SPRING PACK
ASSEMBLY
(KEY 103)
PTFE PACKING
SET (KEY 105)
1. Isolate the control valve from the line pressure, release pressure from both sides of the valve body, and drain the
process media from both sides of the valve. If using a power actuator, also shut‐off all pressure lines to the power
actuator, release all pressure from the actuator. Use lock‐out procedures to be sure that the above measures stay in
effect while you work on the equipment.
2. Remove line bolting. Then, remove the control valve from the pipeline and place the valve on a flat surface with the
retainer (key 5) facing up.