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The scotch-yoke mechanism transforms the linear movement of the pneumatic cylinder

and of the spring into a rotary movement suitable for operating quarter turn valves, such

as ball valves, butterfly valves or plug valves.

Modular Construction

Fully conform to ISO5211mounting standard, NAMUR accessories mounting specifications.

Double acting or spring return.

Pneumatic or hydraulic modules.

Yokes: symmetrical (B) or canted (C) ductile iron casting, with slide block design to ensure high cycle life.

Manual Overrides: Screw manual, gear manual, hydraulic manual.

Working Pressure: 3-10Bar

Rotation angel: -6°to 96°

Torque: 500~250000Nm

Working Temperature:

Standard: -20°~80° ( NBR)

Low Temperature: -40°~80° ( L-NBR )

High Temperature: -15°~150° ( Viton)