ABB Valve positioner V18345-1010521001 Valve positioner original

What is a valve? What is it used for? The VALVE is used FOR the valve opening, that is, the control signal requires the valve to open to the position, the valve to control the valve to which position. A valve equipped with a valve is called a regulating valve, which can be opened at any opening. For example, a control valve that controls a certain flow rate, when the flow rate increases, the control signal will make the valve close down a little, and the control signal issued by the valve will make the valve close down accordingly. Also a storage tank, the liquid level needs to be controlled in a certain height, when the liquid level rises, the control of liquid level controller will signal, control discharge valve to open a bit bigger, released a little liquid, the liquid level drops, and in the liquid level falls, can control the discharge valve turn down, reduce emissions level rise a little.

Valve, is the main components of the regulating valve, as the name implies is installed on the valve, it is by receiving the output signal from the regulating valve to improve the valve, reliability and accuracy. Namely and regulator are used to improve the performance of the valve control mechanism of some deviation, then calibration, make work more smoothly, in particular, principle of the valve is the valve stem, comparing the displacement signal to the controller output signal if there is a deviation, change its output signal, to that of the displacement of the valve stem. In short, the valve is a feedback control system that regulates the output signal.

Data

General specifications:

• Digital HART communication
• Easiest commissioning and operation on site due to local operation and auto adjustment
• Worldwide Intrinsic Safety approvals
• Robust design and flexible in use with linear and rotary actuators
• Remote sensor version
  – Advanced vibration resistance 2 g, 300 Hz
  – Protection class IP 67