Ledeen Control Systems and Accessory Production 

Low-Pressure Pneumatic Controls
For local, remote or automatic control of any low-pressure pneumatic actuator.

Hydraulic Self-Contained Controls
For providing a reliable valve shut-down capability when an external power source for the actuator is either not available or not dependable.

High-Pressure Gas Controls
For local, remote or automatic control of any high-pressure gas actuator utilizing a natural gas or nitrogen supply.

Hydraulic Power Units
Provides a reliable high-pressure hydraulic output as a power source for hydraulic actuators.

Electronic Linebreak Controls
For monitoring pipeline operating conditions to quickly detect pressure trending toward abnormally high or low rate-of-drop values and accurately monitor those trends for an automatic shut-down response when pre-established set points are reached.

Position-Monitoring Switches
For remote indication of any rotary requirements; primarily for quarter-turn valve actuators.

Ledeen Quarter-Turn Core Products

Pneumatic -> Ledeen GS Series, Sy Series and VA Series
Hydaulic -> Ledeen GS Series, SY Series
Hydraulic Subsea -> Ledeen Deepwater Series, Shallow-Water Series
Gas-Over-Oil -> Ledeen GS Series, Sy Series
Direct Gas -> Ledeen GS Series, SY Series

Ledeen Linear Core Products

Pneumatic -> Ledeen LP Series
Hydaulic -> Ledeen LH Series
Subsea -> Mytilus Series
Gas-Over-Oil -> LG Series
Direct Gas -> LD Series