2 PIECE BODY BALL VALVES - FS660 SERIES
Australian Pipeline Valve - Installation, Operation and Maintenance Manual
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b) Body bolts and nuts on valve shall be checked and re tightened if necessary in case loosened during
installation.
c) Remove valve end protectors and ensure gasket faces are free from damage. Tighten all bolts between
mating flanges and valve equally paying careful attention to properly tighten bolts. Ensure you rotate
tightening procedure (opposing bolts sequentially) gradually increasing torque. Refer to Appendix Table
2 for bolt tightening sequence.
d) Prior to installation of valve, ensure the line is completely flushed to remove any debris as soft seated
ball valves are easily damaged. Filters or strainers should be installed upstream to protect soft seated
valves.
e) Valves will operate at any angle horizontally or vertically, although it is recommended you install
valves in a vertical position with stem pointing upwards for ease of operation, inspection and
accessibility.
2.1 INSTALLATION POSITIONS
Ball valves are usually bi directional, and therefore may be installed in either direction. In some cases,
ball valves such as ‘metal to metal’ seated and low temperature valves may be uni directional, in which
case the direction of flow will be indicated on the valve body.
2.2 PREPARATION FOR INSTALLATION
• Remove protective end caps or plugs and inspect valve ends for damage to threads, weld ends or
flange faces.
• Thoroughly clean adjacent piping system to remove any foreign material that could cause damage to
seating surfaces during valve operation.
• Verify that the space available for installation is adequate to allow the valve to be installed and to be
operated.
Ensure sufficient clearance for the stem in the full open position. Inadequate
clearance for valves may add mechanical loading to the valve ends. Sufficient
clearance should be allowed for threaded end valves to be ‘swung’ during
installation.
2.3 END CONNECTIONS
2.3.1 Threaded Ends
Check condition of threads on mating pipe. Apply joint compound to the male end of joint only. This will
prevent compound from entering the valve flow path.
2.3.2 Socket weld Ends
Remove all debris, grease, oil, paint, etc., from the pipe that is to be welded into the valve and from the
valve end connections.
