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6-7. Gate Valve Assembly (Model FIHK-100).
This task consists of:
a. Disassembly
b. Cleaning
c. Inspection
d. Repair
e. Assembly
INITIAL SET-UP4
M a t e r i a l / P a r t s:
Tools:
Wiping Rag (Item 5, App E)
General Mechanics Tool Kit (Item 1, App B)
Lockwasher (16) (Item 13, App E)
E q u i p m e n t C o n d i t i o n:
Lockwasher (8) (Item 16, App E)
Gate valve assembly removed
Packing Ring (Item 14, App E)
Flange Gasket (Item 12, App E)
Bonnect Gasket (Item 15, App E)
NOTE
Ensure that all parts identified as mandatory replacement parts are discarded
and replaced with new components.
a.
Disassembly.
Remove gate valve. Refer to figure 6-5.
(1)
Remove eight nuts (1), Iockwashers (2), flat washers (3), screws (4) and flat
washers (5).
(2)
Separate adapter (6) and gasket (7) from gate valve (15).
(3)
Remove eight nuts (8), Iockwashers (9), flat washers (10), screws (11) and flat
washers (12).
(4)
Separate adapter (13) and gasket (14) from gate valve (15).
Disassemble gate valve. Refer to figure 6-6.
(5)
Remove nut (1) and handwheel (2) from stem (13).
(6)
Remove packing nut (3), gland spring (4), packing gland (5) and packing ring (6) from top
o f b o n n e t ( n)
(7)
Remove eight nuts (7), Iockwashers (8), screws (9) and flat washers (10) from valve body
(18) and bonnet (11).
NOTE
If needed, tap bonnet with mallet to loosen sealing surfaces.
(8)
Remove bonnet (11), gasket (12), and attached parts from valve body (18).
Change 1
6-13
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