Circor HOUTTUIN TT Twin-Screw, Installation, Operation & Maintenance Manual

Page: 77 / 78

Supplemental Assembly Information
TT Twin-Screw Pump -
Installation, Operation, and Maintenance Manual 75
Supplemental assembly information
Maximum torque values for fasteners
TORQUE TABLE
Thread
Torque for
Type 8.8
(Nm)
Torque for
Type 8.8
(In-lbs)
Torque for
Type 10.9
(Nm)
Torque for
Type 10.9
(In-lbs)
Torque for
Type 12.9
(Nm)
Torque for
Type 12.9
(In-lbs)
M6 x 1,00 11.3 100.005 16.5 146.025 19.3 170.805
M8 x 1,25 27.3 241.605 40.1 354.885 46.9 415.065
M10 x 1,50 54 477.9 79 699.15 93 823.05
M12 x 1,75 93 823.05 137 1212.45 160 1416
M16 x 2,00 230 2035.5 338 2991.3 395 3495.75
M20 x 2,50 464 4106.4 661 5849.85 773 6841.05
M24 x 3,00 798 7062.3 1136 10053.6 1329 11761.65
M27 x 3,00 1176 10407.6 1674 14814.9 1959 17337.15
M30 x 3,50 1597 14133.45 2274 20124.9 2662 23558.7
M33 x 3,50 2161 19124.85 3078 27240.3 3601 31868.85
M39 x 4,00 3597 31833.45 5123 45338.55 5995 53055.75
Maximum tightening torque values for Locknut set screws
LOCKNUT
TYPE
SET
SCREW
SIZE
TIGHTENING
TORQUE
(Nm)
LOCKNUT
TYPE
SET
SCREW
SIZE
TIGHTENING
TORQUE
(Nm)
KMT7 M6 8 KMFE7 M5 4.5
KMT8 M8 18
KMFE8 M6
8
KMT9 M8 18 KMFE9 M6 8
KMT10 M8 18 KMFE10 M6 8
KMT11 M8 18 KMFE11 M6 8
KMT12 M8 18 KMFE12 M6 8
KMT13 M8 18 KMFE13 M6 8
KMT14 M8 18 KMFE14 M6 8
KMT15 M8 18 KMFE15 M6 8
KMT16 M8 18
KMFE16
M8 18
KMT17 M10 35 KMFE17 M8 18
KMT18 M10 35 KMFE18 M8 18
KMT19 M10 35 KMFE19 M8 18
KMT20 M10 35 KMFE20 M8 18
KMT22 M10 35 KMFE22 M8 18
KMT26 M10 35 KMFE26 M10 35
NSHM 5/16-18 17 - - -