Flowserve 1878 Y-Pattern Globe Valves User Manual
Page 7
7.0
MAINTENANCE REQUIREMENTS
7.1
PREVENTATIVE MAINTENANCE
7.1.1 Check all nuts and bolts periodically to ensure tightness and to
forestall possible leaks. (See applicable assembly drawing for
recommended bolt torque values).
7.1.2 Keep the valve stem clean and properly lubricated.
7.1.3
Check
condition
of
the
packing and replace as necessary.
7.2
RECOMMENDED SPARE PARTS
7.2.1 Recommended spare parts are Packing Rings (110,112), Disc (004),
Pin (Disc/Skirt)(265) and Rapid Change Kit (802). The
recommended quantity is 1 set of packing for every 2 valves of a
particular type but not less than 1 set of each type. One complete set
of the other parts is recommended for every 10 valves of a particular
type.
7.3
LUBRICATION
7.3.1 Apply a light coating of lubricant (Dow Corning Molykote 111, Dow
Corning Molykote P37 paste or equal) when necessary to the
threaded area of the upper stem. Before lubricating in this fashion,
check at the site to see if a special lubrication procedure should be
followed.
8.0
PERIODIC INSERVICE TESTING RECOMMENDATIONS AND PROCEDURES
8.1
It is recommended that the valve be operated from full open to full close at
least once every six months.
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