BT series Hydraulic Actuator is specifically designed for marine and offshore applications.Focused on compact, simple, rugged and long lasting rack and pinion design philosophy.The BT Series will provide superior performance in low pressure hydraulic applications.. Floating pistons ensure low breakaway pressure and smooth operation. Brass pistons rings and piston bands eliminate leakage and cylinder scoring. Alloy steel racks and pinions provide the strength and resilience for minimum downtime. A broad offering of options and accessories provides unmatched flexibility in design and application. These included cushions, stroke adjusters, flow controls, and position sensors, as well as application matched shaft, mounting, porting and seal variations.