The automatic sprinkler system reduced pressure pneumatic valve general provisions

the reduced pressure pneumatic valve shall meet the following requirements:
. Pneumatic valve should be located in the alarm set before the entrance;
。 Entry should be set before the filter;
。 When connecting two or more alarm pneumatic valve group, should be set standby pressure pneumatic valve;
。 Vertical installation decompression, pneumatic valve, water flow direction should be down.