Stimuli are signals that trigger the senses. Receptors detect the stimuli and neurons send the signals to the brain where they're interpreted. Each sense organ includes receptors that capture relevant stimuli for transmission to the brain. The receptors in the skin are mechanoreceptors and thermoreceptors.
AWWA Butterfly valves are quick opening valves that consist of a metal circular disc or vane with its pivot axes at right angles to the direction of flow in the pipe, which when rotated on a shaft, seals against seats in the valve body. They are normally used as throttling valves to control flow.
A solenoid valve is an electro magnetically controlled mechanical valve used for the ON/OFF (open/closed) or diverting control of liquid or gas media. Solenoid valves are available with a number of port configurations.The most common solenoid valve is a 2/2 way or 2 port 2 position solenoid valve with 1 inlet port and 1 outlet port for simple ON/OFF or Open/Closed media flow control.ounted above the solenoid valve is the solenoid coil (electro magnet) which are usually marked with the rated voltage, manufacturers name and CE marking for use within the European community, ED and power consumption. This electro magnet sometimes referred to as the coil, solenoid or bobine.