Flowserve TX2 Triple Offset High Performance Butterfly Valve IOM - Manual (Page 18)

Flow Control Division
18
SECTION XVII
CAUTIONS
17.1. Application：
17.1.1. The valves are not suitable for a flows containing metal chips, which could hurt the valve seats.
17.1.2. Be sure the valve materials are suitable for the process fluid, especially if the fluid is corrosive.
17.1.3. Be sure the valves are suitable for the pressure and temperature ratings of the connecting
flanges.
17.1.4. The valve service temperature range：-196 ~ 760
℃. (-321~1400°F)
17.1.5. Maximum working pressure can not be higher than the design pressure of the valve.
17.2. Installation：
17.2.1 You must know what media is in the pipeline.
17.2.2 Make sure the line is depressurized.
17.2.3 Be sure the Arrow direction of the valve follows the flow direction of the process flow.
17.2.4 Use protective clothing and equipment to avoid injury. Keep hands and other body parts out of the
valve.
17.2.5. ALWAYS ENSURE THE VALVE IS IN THE FULLY CLOSED POSITION BEFORE
INSTALLATION, REMOVAL OR DISASSEMBLY.
17.2.6. Before installation of the valve into the piping system visually inspect the valve to determine if any
damage has occurred during shipping. Particularly, inspect the actuator, shaft, valve interior, valve body
and flanges. For proper operation of the valves, the seat and disc seal must be undamaged. If other than
superficial damage is discovered, contact Flowserve. immediately, indicating the location and extent of
the damage found.
17.2.7 When re-installing a valve, a new gasket should always be used. .
17.2.8 After installing the valve in the pipeline, check leakage of flange connecting faces by using
compressed air. (Fig.27)
17.2.9 Make sure the faces of valve, gaskets
and flanges are clean before installation.
Fig.27 Fig.28
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