HP series - Direct gas / hydraulic actuator with ductile iron housing and carbon steel cylinders 
Spring return and double acting actuators 
Quarter-turn output torques to 27,000 Nm / 240,000 lb. in.

Proven in-field technology

Biffi has been a major supplier of pipeline/direct gas and gas-over-oil actuators for high pressure applications for over five decades, with many thousands of units providing reliable, effective service worldwide in the most remote locations, from the Siberian steppes to the Arabian deserts.

• Scotch yoke actuators
• Direct gas/Gas over oil actuators
• Heavy duty rack & pinion actuators
• Linear actuators
• Helical slot