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Table 8.1 Torque Values
Gearbox
Sundyne Standard Steel Screws & Bolts and NACE Compliant Steel Screws/Bolts (BG Material)
Torque Values
Item # Location Size English Metric
905H Oil Filter Manifold 3/8 - 16 x 1/2 22 - 25 ft-lbs 30 - 34 N-m
905L Gearbox Seal 1/4 - 20 x 1/2 75 - 80 in-lbs 8.5 - 9.0 N-m
905M, N Journal Bearings #10 - 24 x 1 35 - 40 in-lbs 4.0 - 4.5 N-m
905T Chemical Barrier Gasket 1/4 - 20 x 5/8 75 - 80 in-lbs 8.5 - 9.0 N-m
909B Gearbox Halves 1/2 - 13 x4 60 - 65 ft-lbs 81 - 88 N-m
909C Gearbox Halves, Alignment 5/8 - 18 x 4 17/64 60 - 65 ft lbs 81 - 88 N-m
906B Sight Glass #8 - 32 x 1/2 10 - 12 in-lbs 1.0 - 1.4 N-m
Pumps & Compressors*
Sundyne Standard Steel Screws and Bolts
Torque Values
Item # Location Size English Metric
3 Impeller Bolt/Inducer:
LMV/BMP-801, 802, 806, 322, 311, 331 1/2 - 20 36 - 40 ft-lbs 49 - 54 N-m
LMV/BMP-341, 346 1/2 - 20 65 - 70 ft-lbs 88 - 95 N-m
LMV-313, 343, BMP-338, 348 (High
Flow)
3/4 - 10 85 - 90 ft-lbs 115-122 N-m
LMC/BMC 3X1P, 3X1F, 3X3, 3X6P, 3X7 1/2 - 20 36 - 40 ft-lbs 49 - 54 N-m
906D Diffuser Attaching Screws 1/4 - 20 95 - 102 in-lbs 11 - 11.5 N-m
905E Mechanical Seal No. Spacer 1/4 - 20 x 12 95 - 102 in-lbs 11 - 11.5 N-m
905F Throttle Bushing/Mechanical Seal 1/4 - 20 x 12 9 5- 102 in-lbs 11 - 11.5 N-m
905G Double Seal with Spacer 1/4 - 20 x 3/4 95 - 102 in-lbs 11 - 11.5 N-m
914A Case Nuts 3/4 - 10 250 - 275 ft-lbs 340 - 375 N-m
914A Case Nuts 7/8 - 9 300 - 330 ft-lbs 405 - 445 N-m
905A Seal Housing to Gearbox 3/8 - 16 x 1 3/4 35 - 40 ft-lbs 47 - 54 N-m
905P Separator 1/4 - 20 x 5/8 95 - 102 in-lbs 11 - 11.5 N-m
Pumps & Compressors
NACE Compliant Steel Screws / Bolts (BG Material)
Torque Values
Item # Location Size English Metric
3 Impeller Bolt/Inducer:
LMV/BMP-801, 802, 806, 322, 311, 331 1/2 - 20 36 - 40 ft-lbs 49 - 54 N-m
LMV/BMP-341, 346 1/2 - 20 65 - 70 ft-lbs 88 - 95 N-m
LMV-313, 343, BMP-338, 348 (High
Flow)
3/4 - 10 85- 90 ft-lbs 115 - 122 N-m
LMC/BMC 3X1P, 3X1F, 3X3, 3X6P, 3X7 1/2 - 20 36 - 40 ft-lbs 49 - 54 N-m
906D Diffuser Attaching Screws 1/4 - 20 70 - 75 in-lbs 8.0 - 8.5 N-m
905E Mechanical Seal No. Spacer 1/4 - 20 70 - 75 in-lbs 8.0 - 8.5 N-m
905F Throttle Bushing/Mechanical Seal 1/4 - 20 70 - 75 in-lbs 8.0 - 8.5 N-m
905G Double Seal with Spacer 1/4 - 20 70 - 75 in-lbs 8.0 - 8.5 N-m
914A Case Nuts 3/4 - 10 160 - 200 ft-lbs 217 - 270 N-m
914A Case Nuts 7/8 - 9 225 - 245 ft-lbs 305 - 332 N-m
905A Seal Housing to Gearbox 3/8 - 16 x 1 3/4 27 - 30 ft-lbs 47 - 54 N-m
905P Separator 1/4 - 20 x 5/8 70 - 75 in-lbs 8.0 - 8.5 N-m
* When using Teflon® o-rings, allow 15 minutes between torquing for the Teflon® to cold flow. Repeat torquing
until there is no change in torque.
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