Flowserve Valtek FlowTop V750 User Instructions page 19

Valtek FlowTop
Bellows Seal Bonnet design NPS 3 - 6
- disassembly instructions
1. To disassemble the packing assembly, switch to the
relevant description (see Page 19 - 20).
2. Turn the hex nuts (110) counter clockwise to loosen.
3. Remove the head (40) and head gasket (59).
4. Remove the hex nut (110) counter clockwise to loosen
then pull off the seal carrier (91) and remove the pro-
file ring (60).
5. Pull the plug assembly (50) out downwards of the
bonnet (5).
Figure 14: Disassemble / Reassemble the bonnet
FCD VLEEIM1485-04 (EN/A4) November 2022
Packing
110
40
48
42
59
104
91
60
106
5
51
52
50
Item Part
5 Bonnet
40 Head
42 Plug screw
48 Plug gasket
50 Plug
51 Stem
52 Lock bushing
Table 16: Bonnet parts
General:
Check stressed surface areas for damage such as scoring
or deformities.
Use a standard brass scraper or other suitable tool to clean
all bolting. Check for corrosion or any other damage.
Always replace damaged parts with original spare parts.
The reassembly takes place in reverse order.
Before you start working, find out which
NOTICE
packing variant you are dealing with.
There are basically two different constructions. Internal
Packing and external Packing design.
Internal packing design, unloaded - dis-
assembly instructions
1. Turn the packing follower (80) counter clockwise to
loosen and remove the upper stem guide (87).
2. Use an Packing Driver Tool to remove the packing box
ring (93) and packing (88) by knocking out from below.
80
87
88
93
Figure 15: Disassemble / Reassemble the packing
Item Part
80 Packing follower
87 Upper stem guide
Table 17: Packing parts
Item Part
59 Head gasket
60 Profile ring
91 Seal carrier
104 Hex nut
106 Stud bolt
110 Hex nut
80
87
88
93
or
Item Part
88 Packing
93 Packing box ring
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