Smoke exhaust valve
1Smoke exhaust valve（PYF-SDc-K）：

1. Function: Installed on the mechanical smoke exhaust system pipeline, it is usually in a closed state. In case of fire or when smoke exhaust is needed, it can be manually or electrically opened to provide smoke exhaust function.

2. Performance:
(1) The distance can be manually closed, or the valve can be controlled to close by the DC24V signal output from the fire center.
(2) Manual reset, output manual signal and plating control.

(3) Manually open and reset.

(4) After activation, output action signal interlocking device.