What are the Different Types of Control Valves in Industries?
We know control valves are like the ‘final control element’ in the process of the industry. The main function of the control valve is to regulate the flow capacity or downstream pressure of a fluid. The control valves are usually installed with an actuator, positioner, handwheel, solenoid valve, limit switch, or other accessories.
What Are Fire Safety Valves?
Fire Safety Valves are critical safety devices designed to isolate flammable liquids and gases from extreme heat and open flames. When exposed to high temperatures, the fire safety valve closes to prevent flammable liquids from coming into contact with heat sources, whether in a fire or an overheated system. These hot shutoff valves are usually available in two configurations: Fire Ball Valves and butterfly valves.
What Are The Control Valve Seat Leakage Standards? ANSI FCI 70-2 Standard
ANSI FCI 70-2 Standard is a kind of leakage rate standard which for most control valve factory reference during inspection and test pressure.
How does an electro-pneumatic positioner work?
Positioners that maintain and control valve set points can provide excellent performance. These devices locate valve actuators with high accuracy, monitor and record data, and deliver powerful diagnostic and other functions.
What is the difference between the three-way control valve used for thermal oil/hot oil and the common three-way valve?
For thermal oil condition request three-way control valve should bear high temperature, around 350 degree centigrade, so it makes more difference design with other 3-way globe valves.
Why Each Control Valve’s Sizing is So Important?
Each control valve needs to be carefully calculated and selected before ordering to ensure that all process parameters can be met. Today we will talk about why calculation is so important for control valves.
Why digital positioner is such important for control valves?
Pneumatic globe type control valve is the most common control element in the process loop. As a responsible supplier of control valves, we must consider actuator and positioner together, since and positioner and actuator as a moduled combination greatly affects the static performance, also called deadband. and the dynamic response of the control valve assembly and the overall air consumption of the instrument.
3 Minutes to know common control valves works
A control valve in response to a signal from the control system according to the process parameters change. Based on its function, it could be on/off type or regulating or modulating type.
