FLOW-TEK SERIES 7000/8000
3-PIECE FULL PORT BALL VALVES
Installation, Operation, and Maintenance Manual
8 of 22© 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
GENERAL INFORMATION FOR ON-SITE INSTALLATION
The valve may be installed in any orientation on the pipeline and
should be installed in the full open position Ensure the adjoining
pipe on each end of the valve is aligned to prevent external
piping loads Piping misalignment may cause excessive external
loads on the valve resulting in body joint leaks
Before installing the valves the pipes must be flushed clean of
dirt burrs and welding residues or the seats and ball surface
will be damaged If for any reason the valve is installed prior to
flushing of the piping system the valve must remain in the full
open position until the piping system has been fully flushed clean
of debris
For hydrostatic testing of the piping system the valves must be
placed in the full or half open position prior to pressurizing the
system
NOTICE
Hydrostatic system testing with the valve in the closed position
may result in damage to the valve seats aecting their ability
to create a proper seal Failure to implement the installation and
testing instructions as outlined resulting in a valve failure will
void the warranty coverage of the product
As shipped from the factory valves may contain silicone
based lubricant This is for break-in and may be removed by
disassembly and solvent washing if it is objectionable for a
particular application
Use
The valve should be maintained as part of a preventative
maintenance program and in accordance with manufacturer’s
recommended pressure temperature and corrosion limits to
ensure a long service life During shipment storage and in
operation the valve should be fully open or fully closed (“open”
is preferred for shipping and storage) Do not use in throttling
service without investigating flow and pressure conditions
WARNING
Before installing this equipment confirm that it is suitable for the
intended service
The identification tags describe the maximum allowable service
conditions for this product
Be sure that the installation is protected by appropriate pressure
control and safety devices to ensure that acceptable limits are
not exceeded
