Short Notes on Different Valve Types
The essential function of a valve is to start, throttle and stop a fluid flow. Throttling, as shown in Below Figure, means regulating or controlling the rate of fluid flow. Different…
What is a Segmental Wedge Flow Meter?
The segmental wedge flow meter element has a V-shaped restriction cast or welded into a flanged meter body that creates a differential pressure.
Ultrasonic Doppler Flow Meter Advantages and Disadvantages
Ultrasonic Doppler flow meter transmits an acoustic signal into the flow stream at a specific frequency to measure the flow rate.
Transit Time Flow Meter – Types, Advantages, Disadvantages
Transmit time flow meter sends and receives the ultrasonic waves between transducers in both the upstream and downstream directions in the pipe.
Rate Compensated Heat Detectors Working Principle
Rate compensated heat detectors are designed to initiate an alarm when the temperature of the surrounding air reaches a predetermined level, regardless of the rate of temperature rise. Rate Compensated…
Fixed Temperature Heat Detector Working Principle
A heat detector is a fire alarm device designed to respond when the convected thermal energy of a fire increases the temperature of a heat sensitive element. The thermal mass…
What is Partial Stroke Test?
In all of our activities, safety is one of the prime points under consideration. The same is true when we deal with industrial processes, mainly when process automation is increasingly…
Rate of Rise Thermal Detectors Working Principle
A heat detector is a fire alarm device designed to respond when the convected thermal energy of a fire increases the temperature of a heat sensitive element. The thermal mass…
What is Fire Alarm System?
A fire alarm system has a number of devices working together to detect and warn people through visual and audio appliances when smoke, fire, carbon monoxide or other emergencies are…
Electric Motor Actuator Parts
The electric actuator uses an electric motor to provide torque to operate a valve. They are quiet, non-toxic and energy efficient. However, electricity must be available, which is not always…
