TLV CV10, Instruction Manual

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172-65097M-05 (CV10 Control Valve) 7 Oct 2021
13
6. Disassembling/Reassembling the Bonnet
Part
During
Disassembly
During Reassembly
Nut Remove with a
socket wrench Consult the table of tightening
torques and tighten to the proper
torque; make sure to tighten evenly
Bonnet Pull up and off,
being careful not
to damage the
valve or valve
seat Reattach, being careful not to
damage the valve or valve seat;
insert the bonnet securely into the
gasket housing without tilting;
check to make sure that there is
no catching or biting when the
valve is seated in the valve seat,
and that the valve is securely
seated in the valve seat
Gasket Remove the
gasket and clean
sealing surfaces Replace with a new gasket; make
sure that the gasket does not
protrude from the housing in the
body; DO NOT coat with anti-seize
7. Removing/Reinserting the Valve
After pulling out the valve, follow the instructions in
“4. Disassembling/Reassembling
the Gland Section
” to remove the loosened gland retainer, V-ring, washer and coil
spring.
Part During Disassembly During Reassembly
Valve

When the Cv value is 30 or greater, be careful of the
orientation of the valve wing-blades during reassembly;
improper orientation can result in noise or erosion of the valve
and/or valve seat
NOTE: Valve reassembly orientation for Cv values of 30 or greater (When the Cv value is 20 or
less, there is no designated reassembly orientation.)
8. Removing/Reinserting the Valve Seat (Specialized tool is required)
Part During Disassembly During Reassembly
Valve
Seat This procedure requires a
specialized tool; a power wrench
is useful when replacing a valve
seat of 40 mm or larger; when
using a power wrench, be sure
to follow the manufacturer
’s
instructions
Over-tightening could result
in damage to the valve seat
and body; consult the table of
tightening torques and tighten
to the proper torque
Actuator
Bonnet
Body
Nut
Shallow
cut-away
Shallow
cut-away
Shallow
cut-away
Deep cut-away
outlet
Direction of
inlet flow
Valve: viewed from side Valve: viewed from bottom
Direction of
inlet flow
Valve Seat