TRIAD SERIES 3-PIECE BALL VALVE
Installation, Operation, and Maintenance Manual
of © BRAY INTERNATIONAL INC ALL RIGHTS RESERVED BRAYCOM 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
Valve Assembly Procedure Full Port NPS and (DN & )
NOTICE
Certain valve constructions are uni-directional A flow arrow
will indicate the flow direction Care should be take when
rebuilding the valve to ensure these special constructions are
considered
Hold the body in a vise firmly enough to prevent movement
but do not crush or damage the body
Place the thrust washer protector thrust washer and stem
bearing on the stem and slide the stem into the stem hole in
the valve body Be careful not to damage the stem or body
Install the stem packing onto the stem until it is rested
against the bottom of the packing bore
Install the packing protector and then the packing gland
onto the stem and top of the stem packing
Install packing follower on top of the packing gland
Install the gland bolts through the packing follower and
thread into the body Fasteners should be hand tight
Lubricate threads and bolt faces in contact with the end
caps with grease compatible with the media
NOTICE
If valve will be actuated Steps - are not required
Install the travel stop housing over stem Openings on side
of stop housing shall be perpendicular to the pipeline
Install the housing bolts through the stop housing and
thread into the body Lubricate threads and the bolt faces
in contact with the end caps with grease compatible with
the media Tighten bolts
Install travel stop plate over the stem making sure the
lockout holes in the stop housing and travel stop housing
are aligned in the open and closed positions
Install snap ring over stem in groove closes to the travel
stop housing
Turn the stem until the stem flat is parallel to the port
centerline (so that the ball can fit onto the stem)
lnstall one seat inside the body and two body seals (inner
and outer) inside an end cap make sure the spherical
curvature side of the seat will face the ball
NOTICE
Body boltsbody nuts must be tightened in a cross or star
pattern to prevent uneven loading of the body seal
Lubricate threads and the bolt faces in contact with the end
caps with grease compatible with the media Install the end
cap on to 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
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