Maxtorque High-Performance Valve Products | SLB

Maxtorque high-performance valve products

Worm-gear solutions that minimize effort

minus

Maxtorque™ high-performance valve products feature autolock technology that enables high-performance worm-gear solutions with the self-locking characteristics of conventional gearboxes. As a result, less work is required for valve actuation.

Maxtorque high-performance valve product showing the worm gear.

Manual and automated valves for a wide range of applications, including

  • oil and gas
  • chemicals
  • pulp and paper
  • food processing
  • subsea operations.

2–2.5 times more efficient than commodity gears

  • Up to 75% less work required
  • Enhanced worker efficiency on manual valves, reduced need for actuators, and smaller actuators on motorized valves
  • Improved HSE profile
  • Quick stroke times when required
  • Self-locking design
  • Double-enveloping gear set
  • Unique tooth form to reduce microscopic stresses
  • Superior sealing system and IP68 ingress protection rating
  • Rigorous testing and qualification
  • Best-in-class construction materials, including bronze output bearings to prevent galling
  • ATEX certification
  • Compliance with American Water Works Association (AWWA), US military (MIL) specifications, and ISO 9001:2000
  • Manufactured in the US
Model
Rated Torque,
1,000 Cycles, lbf.ft
Rated Torque,
10,000 Cycles, lbf.ft 
Max. Standard
Bore, in
Standard
Mounting
Base Unit
Ratio 
Base
Mechanical 
Advantage
LW1 3,165  2,533 2.75 FA16 24.33 14.72
LW2 5,667  5,000 3.25 FA25 24.33 14.72 
LW3 8,333  6,667 4 FA25  25.3  15.31
BW1 16,667  13,333 5.5 FA30 20.25  14.18
BW2 33,333  26,667 6.5 FA35 18.75 13.13
BW3 48,333  46,667 9 FA40 22.75 15.93
BW4 83,333  66,667 9 FA48 28.25 19.78
MW1 125,000  100,000 10 FA60  21.75 12.72
MW2 187,500  150,000 10 FA60  21.75 15.94
MW3 250,000  200,000 10 FA60 30.75 17.99 
All specifications are subject to change without notice.