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Flowserve-Limitorque-Gearboxes - Multi-Turn - SR series

Gearboxes - Multi-Turn - SR series

BRAND: Limitorque

The Flowserve Limitorque SR series of spur gearboxes is designed for manual and motorized operation of gate and globe valves, and slide gates in tight space or high vibration applications.


  • Water
  • Oil & Gas
  • Power

industry sectors

  • Water
  • Waste Water
  • Midstream Transportation
  • Downstream Processing
  • Conventional Steam
Operating Parameters

Torque Rating Range: Torque output to 16 984 ft-lb (23 000 Nm)
Thrust Rating Range: Thrust output to 787 000 lb (3500 kN)

Features & Benefits
  • Well suited for high vibration or tight space requirements owing to parallel input shaft and output drive sleeve
  • Application versatility provided by available weatherproof and submersible constructions as well as a wide range of output speeds and torques
  • Increased uptime facilitated by roller bearing-supported shaft and high-strength gearing, which are rated for extremely high thrust and torque requirements
  • High strength and durability provided by ductile iron housing and roller bearing-supported shafts and drive sleeve
  • -300C to 900C ambient temperature range

Protected against the ingress of water and dust

Suitable for temporary submersion to IP67 and IP68


Flowserve Limitorque offers practical product training at our global automation headquarters in Lynchburg, Va., and our state-of-the-art valve automation center in Houston. Taught by qualified instructors in classroom settings, these three-day courses emphasize hands-on training. Key topics include the principles of actuator functionality as well as actuator setup and commissioning, maintenance and troubleshooting. View available courses and dates.


Our global expertise and local service centers ensure that you stay up and running. Learn more about our services.

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