Dyna-Flo 360 - Page 22

Dyna-Flo Control Valve Services Ltd.
Phone: 780 • 469 • 4000 Toll Free: 1 • 866 • 396 • 2356 Fax: 780 • 469 • 4035 Website: www.dynafl o.com
Model 360/361 Control Valves
P-360M1019A
22
Operation, Parts, and Instruction Manual
ASSEMBLY (Continued)
PACKING INSTALLATION (Continued)
For Single Style (Spring-Loaded) Packing (Continued):
7 Install the packing fl ange (Key 35).
8 Apply nickel anti-seize (Key A) to the top threads of
the packing studs (Key 29). Thread the packing nuts (Key
38) onto the threads of the packing studs, tighten the
packing nuts evenly in an alternating pattern until the
shoulder of the packing follower (Key 35) makes contact
with the bonnet (Key 26). Proceed to tighten the packing
nuts to the torque specifi cation listed in Table 6.
For Double Style PTFE Packing:
1 Apply Molykote® 111 (Key B) to the lower stem wiper (Key
30). Insert the lower stem wiper into the packing box ring
(Key 31). Insert the packing box ring into the packing bore
of the valve bonnet (Key 26).
2 Apply Molykote® 111 (Key B) to the fi rst set of packing
rings (Key 34). Install the packing rings one ring at a time
(as shown in Figure 26) in the proper order and orientation
as shown in Figure 29. NOTE: For 3/8” (9.5 mm) valve
stems, remove a packing ring from the middle of the
packing set. WARNING: For oxygen service do not apply
Molykote® 111, Molykote® 111 in oxygen service
applications can cause an explosion.
3 Install the lantern ring (Key 39).
4 Apply Molykote® 111 (Key B) to the second set of packing
rings (Key 34). Install the packing rings one ring at a time
(as shown in Figure 26) in the proper order and orientation
as shown in Figure 29. WARNING: For oxygen service do
not apply Molykote® 111, Molykote® 111 in oxygen service
applications can cause an explosion.
5 Install the packing follower (Key 35).
6 Install the upper stem wiper (Key 36).
7 Install the packing fl ange (Key 37).
8 Apply nickel anti-seize (Key A) to the top threads of
the packing studs (Key 29).
Figure 27 Single Style Packing Installation Diagram
38
29
5
A
37
36
34 C
33
32
30B 31
26
THE SHOULDER
OF THE PACKING
FOLLOWER (KEY
35) SHOULD
MAKE CONTACT
WITH THE TOP
OF THE BONNET
(KEY 26).
FOR VACUUM PACKING
APPLICATIONS, REVERSE
THE DIRECTION OF THE
CUP OF THE PTFE PACKING
RINGS (KEY 34) AS
SHOWN.
NOTE: Molykote® 111
(KEY C) SHOULD NOT BE
USED WITH OXYGEN
SERVICE.