Machine Design

Bevel-gear operator for the power industry

The MT Series operators from Flowserve Corp., Irving, Tex., use rugged bevel gears to seat and unseat the highpressure gate and globe valves used in power plants around the world.

The MT Series operators from Flowserve Corp., Irving, Tex. (flowserve.com), use rugged bevel gears to seat and unseat the highpressure gate and globe valves used in power plants around the world. To make sure all the torque goes into turning valves, the stem on the MT operator is shouldered in the drive sleeve. This lets it capture forces within the thrust housing without transferring the forces to the torque housing. The device uses bevel gears and a thrust base housing made off ductile iron. Torque ranges up to 8,000 lb-ft and thrust can be as high as 325,000 lb.

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