QFB Pneumatic remote control used for fixed installations in industrial instrumentation, generally installed in the control room of the instrument panel, they are some combination of instruments and pneumatic unit (QDZ) (for example, QFB-100 type), and some make a separate manual operator remote control use (such as the QFB-200 type), can be used to measure the output pressure regulator and hand gymnastics valuation device lost actuators (valves) pressure.

This series of devices working environment does not exceed 80% relative humidity, ambient temperature is 5 ~ 50 ℃.