Bray Flow-Tek Triad Series - Page 29

TRIAD SERIES 3-PIECE BALL VALVE
Installation, Operation, and Maintenance Manual
 of ©  BRAY INTERNATIONAL INC ALL RIGHTS RESERVED BRAYCOM The Information
contained herein shall not be copied transferred conveyed or displayed in any manner that would
violate its proprietary nature without the express written permission of Bray International Inc
 Turn the stem so that the ball is in the open position (the ball
will not fall out of the valve)
 lnstall the second seat inside the body on the remaining side
and two body seals (inner and outer) inside the remaining
end cap make sure the spherical curvature side of the seat
will face the ball
NOTICE
Body boltsbody nuts must be tightened in a cross or star
pattern to prevent uneven loading of the body seal
 Lubricate threads and the bolt and nut faces in contact with
the end caps with grease compatible with the media Install
the end cap onto the body with the body bolts Tighten the
body bolts in a cross pattern per Figure  based on number
of fasteners per body joint Fastener torque should applied
at   and  and once more at  increments per
Table 
 Install the Belleville washer together in series (bottom
Belleville washer curve facing up the top Belleville washer
curve facing down see Figure ) and then place them onto
the stem on top of the packing gland
 Install the tab lock washer over the stem and on top of the
Belleville washers
 Thread the lock nut and tighten the nut to the torques in
Table 
NOTICE
The use of a bore alignment tool about  inches (
mm) less than the internal diameter of the end cap and ball
inserted through the end cap and ball will prevent the ball from
turning as the lock nut is tightened on the stem
Material for the bore alignment tool should be made from
a material softer than  Series SS so that it will not
inadvertently scratch the valve end cap or ball Suggested
materials aluminum T acetal or other suitable hard
polymerplastic material
 Secure the tab lock washer with one ear bending up against
the flat of the nut
 Place the handle onto the stem on top of the lock nut
 Thread the lock nut on the stem and tighten the nut to secure
the handle
 Cycle the valve slowly several times By cycling slowly the
seats will conform to the ball A fast-turning motion initially
may damage the seats before they have a chance to form the
proper seal
 Mount actuation per installation section instructions
Figure  - Belleville Washer
Orientation