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1概述预作用装置(见图1)是预作用自动喷水灭火系统中的主要组件,由预作用报警阀组、控制盘、气压维持装置和空气供给装置组成,通过电动、气动、机械或其他方法进行开启,使水能够单向流入喷水系统同时进行报警的一种单向阀组装置。控制柜和空气供给装置均需提供220 V外接电源。产品型号有:ZSFY 100-
1 Overview The preactuator (see Figure 1) is the main component of a pre-activated sprinkler system consisting of a pre-alarm valve stack, a control panel, a pneumatic hold-up and an air supply, electrically, pneumatically, mechanically or otherwise Method to open, so that water can flow into the water system at the same time one-way valve alarm device. Both the control cabinet and air supply are supplied with 220 V external power. Product models are: ZSFY 100-