这种简易的水带测试装置主要供消防队自检用。它的特点是以压缩空气为压力源,不用消防泵,压力很稳定。该装置简单可靠,任何消防队都可以自己动手组装。它主要包括如下部件: 1.一只28公斤/厘米~2的压力表; 2.三只额定压力为21～28公斤/厘米~2的球阀; 3.一只装在气路内的阀门,其额定压力为21～28公斤/厘米~2; This simple water band test device is mainly used by the fire brigade self-test. It is characterized by compressed air pressure source, without fire pump, the pressure is very stable. The unit is simple and reliable, and any Fire Department can assemble it yourself. It mainly includes the following components: 1. A pressure gauge of 28 kg / cm ~ 2; 3. Three ball valves rated at 21-28 kg / cm ~ 2; 3. A valve installed in the gas path, The rated pressure of 21 ~ 28 kg / cm ~ 2;