Flowserve WK70 Series - Manual (Page 3)

Flow Control Division
Worcester Controls
AUTOMATED MANUAL
STEM
SELF–LOCKING NUT
BELLEVILLE WASHERS–4
STEM SEAL
(.030 POLYFIL)
STEM SEAL
(.050 POLYFIL) STEM SEAL
(.050 POLYFIL)
STEM SEAL
(.030 POLYFIL)
THRUST BEARING
(.030 PEEK)
BELLEVILLE WASHERS–2
HANDLE
FREE RUNNING
RETAINING NUTS–2
STEM
LOCKWASHER
FOLLOWER
SEAL PROTECTOR
(.030 PEEK)
THRUST BEARING
(.030 POLYFILL)
THRUST BEARING
(.030 PEEK)
SEAL PROTECTOR
(.030 PEEK)
THRUST BEARING
(.030 POLYFILL)
FOLLOWER
COLOR CHART FOR VARIOUS STEM
COMPONENT MATERIALS
COLOR
BLACK
TAN
MATERIAL
POLYFILL
PEEK
TO CONVERT A MANUAL VALVE STEM BUILD TO AUTOMATED:
REMOVE THE TOP RETAINING (HANDLE) NUT, LOCKWASHER,
HANDLE, LOWER RETAINING NUT, TWO BELLEVILLES AND STOP PIN(S).
ADD FOUR BELLEVILLE WASHERS AND THE SELF-LOCKING NUT.
SEE THIS I.O.M. FOR ADDITIONAL INSTRUCTIONS AND CAUTIONS.
HANDLE NUT
LOCKWASHER
HANDLE
FOLLOWER
SEAL PROTECTOR
STOP PIN
BODY
BALL
SEAT
BODY SEAL
PIPE END
NUTS (4)
STEM
THRUST BEARINGS
BODY SEAL
PIPE END
1/2"–1" BODY
1 1/2"–2" BODY
SEAT
BOLTS (4)
RETAINING NUT
BELLEVILLE WASHERS
STEM SEAL (.050)
STEM SEAL (.030)
VALVE ASSEMBLY
12630-B Tube Bore Clean Valves: 1 /
2
" – 2" WK70 and 1 /
2
" – 2" WK74 Installation, Operation and Maintenance 3
1 /
2
" – 2" WK70/WK74 VALVES