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WFS 101545 Operations Manual
vi.
Verify the position and condition of the O-Ring. If the
O-ring exhibits any signs of wear or cracks replace
with new. It may be necessary to stretch a
replacement O-ring to permit it to lay flat completely in
the grove. See Figure 5-16
vii.
Replace Cover and tighten Wing Nuts. Follow a
star pattern tightening sequence for the wing
nuts. Do not fully tighten each nut on the first
pass. Make several rounds snugging the nuts
down a little tighter each time. Check for leaks
when under full pressure and re-tighten wing nuts
as required. See Figure 5-17
NOTE: Prior to starting a filter element change out it may be
desirable to “DISMISS” the leak detection alarm to prevent process interruption. To do this
turn the bottom slide switch on the alarm page to “ON”.
b.
Configuration
The Filter Housings are configured as two groups of two parallel circuits. One circuit handles
the recirculating water and the other circuit provides final filtration for the process water.
This configuration permits the isolation of one filter housing for cartridge change out while
one stays on-line. Therefore, cartridges can be changed out without process interruption.
See Figure 5-18
FIGURE 5-16
FIGURE 5-17
