6 | Baker Hughes
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Field Disassembly
and Reassembly
The following procedure is recommended for replacing the
internal soft goods for the Flexflo Surge Reliever.
Note: The diagrams in this procedure show the 6” Class 300
Surge Reliever. Actual appearance may vary.
1. Remove the top studs and nuts as shown in Figure 5.
Figure 5 - Remove top studs and nuts.
Proper arrangement of jacking nuts and studs to be removed for
each size and class of Flexflo Surge Reliever is found in Table 1
at the end of this procedure.
2. Turn the nuts on each remaining tie stud counter-clockwise
until the face of the nut is flush with the end of the stud as
shown in Figure6 below.
Figure 6 - Turn all tie stud nuts counter-clockwise.
3. Turn each jacking nut so that the face of the washer is flush
with the face of the line flange as shown in Figure 7 below.
Figure 7 - Jacking nuts flush with line flange face.
4. Rotating each jacking nut ¼ turn at a time, spread the
line flanges apart so that each flange is tight against the
remaining tie nut washers as shown in Figure 8 below.
Figure 8 - Spread line flanges using jacking nuts.
5. Using the lifting lugs in the Surge Reliever body, lift the body
assembly out of the line as shown in Figure 9 below.
Figure 9 - Lift body assembly out of line.
Verify that the crane used has the appropriate load ca-
pacity for the body assembly prior to lifting. Weights
for each size and class of Flexflo Surge Reliever can
be found in Table 2 at the end of this procedure.
6. Remove the cover plate O-rings as shown in Figure 10
below.
Figure 10 - Remove all 4 cover plate O-rings.
