中文字幕国产日韩欧美_国产亚洲日韩欧美网曝_wwwxxx日本在线观看_久热爱在线观看免费视频_久久综合中文字幕色_2018高清国产一道国产_日本黄色网站免费的_美女自慰流白浆在线观看_百度人妻在线一区二区三区_麻豆福利夜间视频

 The specific performance table parameters are subject to the test report!

Performance:

1. The smoke fire damper is normally closed. In case of fire, the smoke sensor sends a signal through the control center to input DC24V, the actuator electromagnet acts, the valve opens automatically, and the smoke exhaust fan is started to exhaust smoke.

2. The thickness of valve body is L = 250mm, the control voltage is DC24V, the contact capacity of microswitch is AC380V, 3a, and the action current of electromagnet is 0.5A.

3. When the size of rectangular valve is greater than 1250 * 800, the valve is processed by a combination of several valves smaller than the limit size.

Explain:

Sfd-p-2 is smoke exhaust valve - normally closed; sfd2-p-2 is circular smoke exhaust valve - normally closed;

Sfd-p-3 is remote control smoke exhaust valve - normally closed; sfd2-p-3 is circular remote control smoke exhaust valve - normally closed;

Sfd-p-4 is full-automatic smoke exhaust valve - normally closed; sfd2-p-4 is round full-automatic smoke exhaust valve - normally closed;