Note:
Bolting shall be hand tightened for positioning of the seal ring assembly into the seat face without any damage. Refer
to the torquing method for fasteners as mentioned below.
Torquing method for fasteners:
✓ Use star pattern – torque socket head cap screw 25% of required bolt torque
✓ Use star pattern – torque sockethead cap screw 50% of required bolt torque
✓ Use star pattern – torque sockethead cap screw 75% of required bolt torque
✓ Use star pattern – torque sockethead cap screw 100% of required bolt torque
✓ Use circular pattern – repeat 100% bolt torque to equalize load.
A. Gear box: “Close stop adjustment”
Using gear box, back out close stop adjustment 5 turns. Apply handwheel torque to close valve completely. Turn
stop in until contact and lock the Position with jam nut as shown in the figure 5.
B. Gear box: “Open stop adjustment”
Open valve and visually align disc assembly parallel to valve bore (full Open). Set the open stop adjustment of the
gear box and lock the position With jam nut as shown in the figure 5.
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