Ravi Kiran Enterprises

The RTX1000 PT is an electro-pneumatic positioner with a built-in position transmitter. It's a device used in industrial automation to accurately position valves operated by pneumatic actuators. The "PT" designation likely refers to the integrated position transmitter, which provides feedback on the valve's position. 

The Rotex RTX1000-L electro-pneumatic positioner is a linear, double-acting device that converts an electrical signal (4-20mA) into pneumatic pressure to control the position of a linear valve. It utilizes a unique poppet and diaphragm valve design for accurate and responsive control, featuring a high-performance nickel flapper and a rocker mechanism to minimize dead band. 

The Rotex RTX1300-PT is an electro-pneumatic positioner with a built-in transmitter, designed for controlling rotary valves in industrial processes. It uses a pneumatic actuator to position the valve based on a 4-20mA control signal, often in applications where precise and efficient valve positioning is required. The transmitter provides feedback on the valve's position, allowing for accurate control and monitoring. 

The Rotex RTX1200-R-XXXX is a linear, single-acting pneumatic positioner, designed for rotary or linear actuators. It's an electro-pneumatic positioner, meaning it uses a combination of electrical signals and pneumatic power to control the position of an actuator. The "R" in the model name indicates its rotary actuator application, while the "XXXX" part of the model number is a customizable part for specific application requirements.