Bray Flow-Tek Triad Series - 10.4 Disassembly for Stem and Stem Packing Removal

TRIAD SERIES 3-PIECE BALL VALVE
Installation, Operation, and Maintenance Manual
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 Disassembly for Stem and Stem Packing Removal
 Support valve and actuator assembly before removing from
pipeline
 Open valve
 Remove valve from pipeline either by unscrewing threaded
portion of pipe while supporting valve end with a wrench
loosen and remove pipeline flange bolting or remove body
center section To remove body center section loosen body
bolts on both sides using the proper wrench
 Lift valve from line for servicing Proper lifting and handling
techniques shall be followed to remove valve and actuator
from pipeline
NOTICE
Care should be taken to avoid scratching or damaging mating
faces The valve should be adequately supported and in the
open position before beginning
 Once valve has been removed from the pipeline hold the
body in a vise firmly enough to prevent movement but do not
crush or damage the body
 For valves smaller than ” (DN) full port and ” (DN)
remove the upper lock nut handle lower lock nut tab lock
washer Belleville washers and packing gland For larger
valves remove handle bolt handle snap ring travel stop
plate travel stop housing and travel stop bolts gland bolts
packing gland and packing follower
 If not previously done when removing valve from pipeline
remove body bolts using proper wrench size Lift o end
cap One seat should come out with end cap
 Repeat the removal procedure for the other end Take out
other seat
 Carefully remove body seals watching to not damage
sealing surfaces Damage to sealing surfaces will aect the
performance of the valve
 To remove the ball rotate the stem so ball is fully closed Lift
the ball from body using a strap and lift device if necessary
NOTICE
Extreme caution should be taken to avoid damage to the ball
 The stem must be removed from inside the body - a tap with
a block of wood or hard plastic rod on the top of the stem
should loosen it The thrust washer should come out with the
stem Then remove the stem packing
 Carefully remove all soft goods watching to not damage
sealing surfaces Damage to sealing surfaces will aect the
performance of the valve
 Discard all soft seals