
9
Flow Control Division
Edward Valves
Packing Chamber Schematic
Valves of the Fig. 158, 5158, 9158 (see
pg. 3) type have a packing nut with
threads that should be kept well lubricated
to prevent corrosion and eliminate packing
adjustment difficulties.
Gland Bolts
The removal of glands is accomplished by
removing the nuts. Swing bolts can be
removed by also driving out the pin.
Yoke Bushing
The yoke bushings of small Edward valves
are threaded to the yoke. Bushings are
subject to wear in services where large
amounts of grit accumulate on the valve
threads. Lubrication aids easy operation of
valves and reduces wear of yoke bushings.
Gland Bolts
FLEXIBLE
GRAPHITE
RING
BRAIDED
RINGS (2)
Swing Type
Yoke Bushing
Packing Gland Torque
VALVE SIZE
FIGURE 1/4, 3/8 1-1/4
NUMBERS 1/2 3/4 1 1-1/2 2
158 125-130 140-145 265-270 280-285 435-440
5158,9158 FINAL FT-LB FT-LB FT-LB FT-LB FT-LB
828,829 INITIAL 21 40 62 153 210
847,848
849,868,869 FINAL 8-18 15-25 24-34 59-69 81-91
1029,1047 INITIAL 21 40 62 153 210
1048,1068
1069 FINAL 15-25 28-38 43-53 106-116 145-155
1441,1443 INITIAL 250 287
1641,1643 FINAL 71-81 82-92
1028 INITIAL 40 62 62 153 210
1046 FINAL 28-38 43-53 43-53 106-116 145-155
ALL TORQUES ARE GIVEN IN INCH-POUNDS EXCEPT WHERE NOTED
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