The Controlair 550X is a high-performance motorized pressure regulator designed for precise and reliable pneumatic control. It utilizes an internal stepper motor to convert a DC voltage or current input signal into a highly accurate, proportional pneumatic output pressure. This design ensures minimal power consumption, especially in a steady-state condition, making it an energy-efficient choice for various industrial applications. The 550X is ideal for valve actuation, damper and louver control, web tensioning, and other process control systems where dependable and repeatable pressure regulation is critical. Its rugged construction and compact size allow for flexible installation in demanding environments.