FLOW-TEK SERIES RF15/RF30
FLANGED ONE PIECE BALL VALVES
Installation, Operation, and Maintenance Manual
5 of 14
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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.
5.0
OPERATION
Operation of the valve is done by turning the handle a 1/4 turn
(90 degree turn). Clockwise to close, counter clockwise to open.
5.1
Valve Open Position
The handle is parallel with the pipeline.
5.2
Valve in closed Position
The handle is perpendicular to the pipeline.
Valves with actuators should be checked for actuator-valve
alignment. Misalignment will result in high operational torque and
damage to valve stem and seals.
4.0
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
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 half open position prior to pressurizing the system.
If the valve is installed in a dead-end position on the piping, the
valve must be placed in the half open position and equipped with
a blind flange prior to pressurizing the system.
NOTICE
Hydrostatic system testing with the valve in the closed position
may result in damage to the valve seats, affecting 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.
