Replacing The Seat And Plug - Samson 3323 Mounting And Operating Instructions

6. Apply a suitable lubricant to all the pack-
ing parts and to the plug stem (36).
7. Carefully place the valve bonnet (2) over
the plug stem (36) and the studs (13)
onto the body (1). Make sure that the
gasket (17) is properly seated in the
body.
8. Carefully slide the packing parts over the
plug stem into the packing chamber us-
ing a suitable tool. Observe the proper
sequence (see Fig. 9-4).
9. Fasten the valve bonnet (2) with body
nuts (14). Tighten the nuts gradually in a
crisscross pattern. Observe tightening
torques.
10. Apply a suitable lubricant to the thread
of the threaded bushing (8). Screw in the
threaded bushing and tighten it. Observe
tightening torques.
EB 8113/8114 EN
2 Valve
bonnet
8 Threaded
bushing
11 Spring
12 Washer
15 Packing
16 V-ring
packing
Fig. 9-4: Packing for valves in DN 65/NPS 2½
and larger
9.4.3 Replacing the seat and
plug
NOTICE NOTICE
! !
Risk of damage to the facing of the seat
and plug due to incorrect service or repair.
Î Always replace both the seat and plug.
Servicing
8
16
15
12
11
2
9-9