positioner is auxiliary instruments used with pneumatic adjusting valve, receive DC signal from electric regulating instruments and convert the signal to corresponding pneumatic signal, control adjusting travel. By the action of feedback system , make the travel and signal change proportionally, then ensure the correct position of valve.

Features :

Improve the movement speed of pneumatic adjusting valve

Change the action mode of pneumatic adjusting valve

Can operate pneumatic adjusting valve of pressure range of all kinds of springs

Can be used with angle pneumatic adjusting valve

Structure principle

It is mainly made up of shell, nozzle - baffle, main and sub-lever, pneumatic board and amplifier

Designed according to torque balance principle