Data Sheet

A81 Valve
D103301X012
Product Bulletin
21.1:A81
July 2012
5
Figure 2. Comparison of Disk Action
DISK FULLY CLOSED DISK FULLY OPEN
VALVE BODY
ECCENTRIC
DISK
CONVENTIONAL
DISK
OPEN
ECCENTRIC
DISK CENTER
OF ROTATION
CONVENTIONAL
DISK CENTER
OF ROTATION
CENTERLINE OF
VALVE BODY
SEAL RING (SOFT SEAL
CONSTRUCTION
SHOWN)
ECCENTRIC
DISK PATH
OF ROTATION
CONVENTIONAL
DISK PATH
OF ROTATION
GE36289-A
Figure 3. Available Seal Configuration
SOFT SEALS
SPRING
PRESSURE-
ASSISTED
SEAL
HIGH
PRESSURE
SHUTOFF
DISK FACE
VALVE
BODY
SEAL
RING
PRESSURE-ASSISTED
SEAL
HIGH
PRESSURE
SHUTOFF
DISK
FACE
VALVE BODY
B1558-3
METAL SEAL
SEAL
RETAINER
SEAL
RETAINER