Flowserve TX2 Triple Offset High Performance Butterfly Valve IOM - Manual (Page 19)

Flow Control Division
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17.3. On Service：
17.3.1 Do not touch the valve body when it is on service.
17.3.2 Do not loosen flange bolts, valve bolts when valve is on service. (Fig.28)
17.3.3 The valve must be supported when there is pipeline vibration, so that pipeline stresses are not
transmitted to the valve and actuator.
17.3.4 Do not use a “F” wrench to operate the hand wheel of gear box. (Fig.29)
Fig.29 Fig . 30
If there are any problems could not be eliminated during service，please contact your Flowserve
representative for further assistance. (Fig.30)
X
Fig. 30