Rotork Controls Limited

Stuart Steven Adam

Kevin Richard Sweet

A valve actuator torque limiter () includes a moveable shaft () moveable two ways in an axial direction and, in use, rotatable to cause rotation of a valve actuator drive shaft (). The limiter further includes a brake disc () mounted on the moveable shaft; a first friction device (A) located to a first side of the brake disc, and a second friction device (B) located to a second side. In use, contact between the brake disc and the first or the second friction device stops a motor () rotating the moveable shaft. The limiter also includes a casing () housing at least the brake disc, the first friction device and the second friction device, and an adjusting arrangement (A,B) for adjusting a position of the first friction device and/or the second friction device relative to the brake disc. The adjusting arrangement is operable from outside the casing.

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Frome, United Kingdom

Stuart Steven Adam