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Torque Values for Bonnets & Gland Nuts of G-Series® Valves

  1. The following torque values should be used for assembling the valves given.
  2. The values shown are for dry assembly. If lubrication is used on the threads, it is recommended that torques closer to the minimum be used.
  3. The minimum values establish the lower limit for permanent assembly. Torque values below the minimum should not be used. Torque values larger than the maximum are not recommended without prior approval.
G-Series® Valve Bonnet Gland Nut
Size Ft.-Lbs. Ft.-Lbs.
Min. Max. Min. Max.
G0 [.218″ ORIF] 30 38 25 32
G1 [.313″ ORIF] 50 60 25 32
G2 [.438″ ORIF] 70 90 30 38
G3 [.500″ ORIF] 90 115 40 50
G4 [.625″ ORIF] 110 140 40 50
G5 [.813″ ORIF] 130 170 55 70