Fisher NPS 12 Instruction Manual page 16

Large ET and ED Valves
July 2014
Figure 5. Typical Fisher ET Valve
NOTE:
1 SEAL RING OPENING MUST FACE SEAT RING FOR FLOW DOWN APPLICATIONS AND MUST FACE ACTUATOR FOR FLOW UP APPLICATIONS.
16
A
Instruction Manual
D103553X012
CAGE
(KEY 3)
VIEW A
VALVE PLUG SEAL RING
VALVE
PLUG
(KEY 2)
SEAL
RING
(KEY 28)