FDK SERIES BELLOWS BAFFLE CONTROL DEVICES

  

APPLIATIONS

It is an local transfer device for boiler combustion automatic ����control system,Its safe,economic,and necessary burning equipment ��for boiler in power-steam plants.
�Owing to different burning mode and burner combination mode,the ���configuration of bellows baffle control device are also defferent, ��Different control modes are equipped according to various ������operations of boilers.

 
�This device is suied not only for corner-fired boiler,but also ���for boiler with burner in froe-and -aft wall.
 

PERFORMANCE PARAMETERS：

Items
Qualifications
Control signal
4∽20mA.DC impedance 300Ω

Feedback signal
4∽20mA.DC impedance 600Ω

Power voltage
220V.AC.50HZ or 24V.DC

Air supply ppressure
0.6∽1MPa

Ambient temperature
-25℃+60℃
Static air consumption
Control 4 actuators for each group 2500L/h (standard state)
Basic error
±1.5% rated stroke

Repeatability
≤1.5% rated stroke

Dead band
≤0.6% input signal range
 
1、Control room�

2、Pneumatic electrie converter

3、Control cabinet

4、Air supply regulator

5、Solenoid valve

6、Actuator

7、Baffle

8、Plate

9、Operating device

10、Switching circuit

11、Electric pneumatic converter

12、Reverser

13、Amplifier

14、valve positioner

15、Valve position transmitter