Intrusive Multi-Turn Actuators - SMB
Product Brand
Intrusive Multi-Turn Actuators
About this product

The Flowserve Limitorque SMB electric actuator is designed for critical and severe service applications in nuclear and thermal power, water, oil & gas industries.

... Read more Read less
  • Long service life with rugged with cast iron housing and precision-machined gearing
  • Extreme environment performance enabled by nuclear, weatherproof, submersibleor explosion-proof construction
  • Lower maintenance and downtime owing to torque-limiting feature, which de-energizes the motor to prevent valve damage in the event of an obstruction
  • Fully qualified for nuclear applications to IEEE 384, 323 and 344


Torque Rating Range: Output torque to 60,000 ft. lbs (81 349 Nm)
Thrust Rating Range: Output thrust to 500,000 lbs (2224 kN)

No Controls Unit, where the actuator motor controls are remotely mounted in motor control centers

IRC Controls package
Integral Reversing Controls package for open/close control

Find Flowserve representatives near you


Find your closest Flowserve resource for new products and replacement parts. We can help improve performance and safety throughout your operation.

Search Sales Contactsright-arrow

Searching for a service or repair for your equipment? Connect with a nearby Quick Response Center (QRC) to resolve problems and optimize equipment.

Find Servicesright-arrow

Are you looking for thought leaders with the expertise you need in your industry? We have industry and application specialists around the world who can assist you.

Locate Industry Expertsright-arrow