Profile: Eastern Controls, Inc. is a distributor of process control and instrumentation equipment. Our products include control valves, valve positioners, actuators, emergency shutdown, pressure regulators, pressure measurement, flow measurement, level measurement, temperature measurement, gas chromatographs, freeze protection & winterization, steam & condensate traps and wireless products. Our pressure regulator is a valve that automatically cuts off the flow of a liquid or gas at a certain pressure. Regulators are used to allow high-pressure fluid supply lines or tanks to be reduced to safe and usable pressures for various applications. Our valve positioners are used to position a valve based on a control signal. The signal can be pneumatic or electric. The positioner is attached to the valve stem. It compares the actual valve position to the input signal, and sends the required output to the actuator to bring the valve to the correct position.