The NLR valve is a single-seat control valvea proportional pneumatic actuator designed for flow control in installations of the pharmaceutical, dairy and food industries, as well as in the beverage industry and in the fine chemicals industry.
The valve is widely used to control pressure, flow, liquid level in a container, etc.
The principle of operation
The position sensor instantly monitors the position of the drive and holds it in the position determined by the operator (PD function) or the process parameter (PID).
The working position can be programmed:
- By means of a standard signal sent, for example, by a sensor. 4...20mA or from 0 to 10V.
- By means of a regulator built into the positioner.
The signal is sent via the keyboard.
Design and characteristics
Normally closed valve (standard version).
The valve characteristic is equal to one percent.
The body is oriented at 360 °.
Compact design.
The positioner is two