Flowserve TX2 Triple Offset High Performance Butterfly Valve IOM - Manual (Page 5)

Flow Control Division
5
SECTION V
STORAGE
When the valve is not put into immediate service, it is required that the valve be stored in a heated building that is
fire resistant, weather tight and well ventilated. Storage area shall be situated and constructed so that it will not be
subject to flooding or the presence of any corrosive chemicals. Flowserve recommends that all valve actuators be
cycled approximately every 60 days or as required by the manufacturer of the actuation system. Any spare parts for
the valve shall be stored in the original packaging and under the same conditions as the valve will be stored. For
storage greater than 4 months, the storage container should be inspected every four (4) months to ensure it is in good
condition, and any additional protective coverings or materials are in working order. Ensure all parts are plugged,
and bare metal is covered with a suitable rust inhibitor.
SECTION VI
INSTALLATION
The valve must be installed so that pipeline stresses are not transmitted to the valve body. Despite its solid
manufacture, such stress may affect valve operation. If pipeline stresses are severe, they should be cushioned by
expansion joints or compensators. If supports are necessary for the valve, they should only support the dead weight
of the valve and should not serve as base points for the pipeline.
SECTION VII
STEPS OF INSTALLATION
7.1. All valve s must be in full closed position during installation or removal. It is not necessary to torque
seat the valve, but the disc travel must be restricted to prevent damage.
7.2. Please be sure there is no foreign material and that it is clean inside of the pipe and valve.
7.3. The shaft side of the disc is considered the high-pressure side of the valve, (as indicated on the
drawings by a flow arrow) meaning the best closure performance is obtained on this side of the valve, and a
determination as to the best installation should be made, to utilize this feature. This may not necessarily be
the normal flow direction of the system. (Fig.3).
7.4. Please install the valve stem horizontally as (Fig.4), thus could prevent sand and some chips from
collecting around bottom bushing and seat. Such reside could damage the valve.
Fog 4
Fig 4
Fig 3
Fig 4