Features

• Totally enclosed, weatherproof housing in fabricated carbon

steel for maximum strength.

• Guide bar resists transverse loads and supports the

piston rod.

• Hard chromium plated alloy steel material guarantees

corrosion protection and minimal friction.

• Polytetrafluoroethylene (PTFE)-impregnated bronze or

sintered bronze bushings provide minimal friction and

extended service life.

• Scotch yoke design with canted or symmetric torque arm

allows close working to distinctive valve torque profiles.

• External travel stops for precise angular stroke adjustment

90° +/- 4° at each end of travel.

• Electroless nickel plated and polished cylinder provides

maximum corrosion resistance and reduces friction.

• Triple-element piston seals provide low friction, high

sensitivity, ensure long life and prevent sticking problems.

• OLGAS-H fully encapsulated spring-return pack ensures

personnel safety and simplifies assembly.

• OLGAS-H modular design enables spring action to be

changed in the field easily.

• OLGAS-H QA is the quick-acting spring-return hydraulic and

electro-hydraulic actuators with high flow rate manifold and

cylinder, integral quick exhaust valves, and end-of-stroke

damper systems, designed by Biffi.

• OLGAS-H QA achieves “safe” position in less than 0.3 second.

This configuration can be provided with a double camber

option and the name will add the suffix DC at the end.