乱人伦中文字幕-日本乱理伦片在线观看中文-色94色欧美sute亚洲线路二-久久成人亚洲香蕉草草-成人免费毛片网站-午夜亚洲国产-а天堂中文在线官网-麻豆人人妻人人妻人人片av-欧美亚洲精品真实在线-在线不卡国产-欧美精品网站-成人久久免费网站-911精品国产一区二区在线-成人做受视频试看120秒-91黄色看片

Complex air valve body is barrel shape, the inner parts of the valve include stainless steel float ball, lever and disc.This valve is installed in the pump outlet or water distribution line, used to remove the air collection in the pipe, in order to improve the efficiency of the pipeline and water pump, when the pipe once produced steel pressure, the valve quickly inhaled outside air, to prevent the pipeline due to negative pressure and damage.When the pipe begins to fill with water, the valve disc in the open position, for a large amount of exhaust, when the air exhaust valve filled with water, float ball rise and drive the valve disc close, stop exhaust, when the water in the pipe is normally transported, if there is a small amount of air gathered in the valve to a considerable degree, the water level in the valve drops, the air is discharged by the hole.When the pump is stopped, the water in the pipe is empty or negative pressure is generated in the pipe. At this time, the plug head is quickly opened and air is inhaled to ensure the safety of the pipeline.

Product model: CARX
Nominal diameter: DN25~200mm
Nominal pressure: PN1.0~ 2.5mpa
Applicable temperature: 0~80℃
Suitable medium: water
Main material: cast iron, ductile iron, carbon steel, etc