Fisher 461 Instruction Manual page 7

Instruction Manual
D100714X012
Figure 4. ENVIRO-SEAL and HIGH-SEAL Packing Systems
SPRINGS
ANTI-
EXTRUSION
RING
LANTERN
RING
W5803-3
TYPICAL ENVIRO-SEAL PACKING SYSTEM
SPRING
PACKING
W8533-1
TYPICAL HIGH-SEAL PACKING SYSTEM
FOR A FLAT BOTTOM PACKING BOX, THE PACKING BOX RING AND LOWER WIPER ARE NOT NEEDED.
1
WITH PTFE PACKING
WITH GRAPHITE ULF PACKING
PACKING
BOX
STUDS
SPRINGS
PACKING
RING
VALVE
PACKING
BONNET
1
W8532-1
TYPICAL ENVIRO-SEAL PACKING SYSTEM
PACKING
BOX
STUD
FOLLOWER
1
W7018
TYPICAL ENVIRO-SEAL PACKING SYSTEM
WITH GRAPHITE ULF PACKING
WITH DUPLEX PACKING
461 Valve
June 2017
PACKING
BOX
STUD
FOLLOWER
7