Flow Control Valve regulates the flow or pressure of a fluid. Control valves are fitted with actuators and positioners. A flow control valve includes a valve body defining fluid inlet and outlet sections interconnected by a connecting port.
Electronic flow meters are used for testing hydrants. An electronic flow meter is used to measure current velocities. An electronic flow meter incorporated into the water supply turns off the power to the heating mantles when the flow rate falls below a pre-set level. An electronic flow meter utilizes a light source for directing a beam of light onto a light responsive sensing device such as a photocell. The electronic flow meter serves to measure fluid liquids for the uncalibrated application.
Electronic fluorescent dimmer are mainly used in meeting areas and restaurants. The fluorescent lights have been very difficult to dim. This has resulted to the lack of acceptance in meeting areas and restaurants, where dimming has been widely used. Using the same technology of the electronic starter, it is possible to dim fluorescent lights to less than five percent light outputs.