Diagram of Flowserve / Limitorque's Bevel Gear B320 for Lodestar Engineering's products page.


The Flowserve Limitorque B320 series of bevel gear operators deliver efficient and dependable operation for multi-turn applications. Suitable for manually operated valves and gates or motorized operation with Flowserve Limitorque MX, L120, and SMB series electric actuators, the B320 series provides versatility to meet any required operating condition.

For manually operated valves and gates the B320 operators can be driven by handwheels, chainwheels, or wrench nuts. An optional spur gear attachment is available to further reduce the required input torque or rim pull effort.

With five product sizes covering torque ranges to 8,000 ft.lbs. and 325,000 lbs. thrust, there is a B320 product suited to virtually any multi-turn application.

USES:  Acid Transfer, Aerospace, Agriculture, Alkylation , Auxiliary, Boiler Circulation Systems, Boiler Circulation Systems, Boiler Feed, Boiler Feedwater Systems, Boiler Feedwater Systems, Boiling Water Reactors Non-safety, Catalytic Cracking, Caustic and Chlor-Alkali, Condensate Systems, Condensate Systems, Construction, Cooling Systems, Cooling Systems, Cooling Water – Metals, Crude Handling and Treatment, Crude Pipeline, Delayed Coking, Desalination, Descaling, Dewatering & Water Supply, Digester, Distillation, Fire Protection – General Industry, Flood Control, Galvanizing and Other Coatings, Gas-to-Liquids, Gas Treatment, General Industries, Ground Water Development and Irrigation, Heavy Oil and Upgrading, HVACI, Hydrocraking, Hydrotreating, Leaching Acid,Logistics and Tank Farm, Miscellaneous Services, Miscellaneous Services, Nuclear Power, OEM, Plating, Pressurized Water Reactors – Non-safety, Primary Processing, Products Pipeline, Scale Recycle, Slurry Processing, Slurry Transfer, Solvents, Steam Systems, Steam Systems, Utilities, Waste Processing, Wastewater Collection and Treatment, Water Handling and Treatment, Water Injection, Water Supply and Distribution, Water Treatment


  • Rugged cast iron gear housings
  • Ball bearing supported bevel pinion and bevel gears
  • Removable, bronze alloy stem nut for mating to the valve stem
  • Adaptable to Flowserve Limitorque electric actuator

Download Limitorque B320 Brochure

Download Limitorque B320 IOM

REFERENCES: 11-13-13, www.flowserve.com