0 operating the valve – Flowserve Cast Globe Valves User Manual
Page 13
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Globe Valves FCD ADENIM0011-00
13
4.0 OPERATING THE VALVE
(Continued)
4.5
Operating Tips
Do:
-
Operate valves at least every 6 months.
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Keep stem clean and lubricated.
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Inspect valves regularly.
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Lap seats promptly if valve leaks.
-
Use normal torque on handwheel.
-
Check packing regularly.
Do Not:
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Overtighten packing.
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Torque-out motor operator against backseat.
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Keep valve backseated during normal operation.
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Bypass or reset torque or limit switches.
-
Use unauthorized actuator assists such as – pipe wrenches – cheaters.
-
Bring valve to fully backseated position immediately upon opening a valve
in a hot system. Allow 15 minutes for stem to cool before backseating
valve.
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