Data Sheet

YD and YS Valves
D100031X012
Product Bulletin
51.1:YD
June 2014
7
Figure 5. ENVIRO-SEAL and HIGH-SEAL Packing Systems
TYPICAL ENVIRO-SEAL PACKING SYSTEM
WITH DUPLEX PACKING
W5803-3
SPRINGS
ANTI-
EXTRUSION
RING
LANTERN
RING
PACKING
BOX
STUDS
PACKING
RING
VALVE
BONNET
TYPICAL ENVIRO-SEAL PACKING SYSTEM
WITH GRAPHITE ULF PACKING
TYPICAL E NVIRO-SEAL PACKING SYSTEM
WITH PTFE PACKING
TYPICAL HIGH-SEAL PACKING SYSTEM
WITH GRAPHITE ULF PACKING
W7018
W8533- 1
PACKING
BOX
STUD
FOLLOWER
PACKING
SPRING
W8532-1
FOLLOWER
PACKING
BOX
STUD
PACKING
SPRINGS