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球墨铸铁管打压

作者: -1    发布时间: 2018-07-26    次浏览

球墨铸铁管的打压实验是为了保证安装上之后,能够保证它的使用质,以防发生漏水的状态。同时在做打压实验的时候,也有一些需要注意的地方,一旦处理不好将会影响打压的效果。下面球墨铸铁管厂家告诉你在打过程中应注意哪些事项?

The suppression experiment of ductile iron pipe is to ensure that the quality of its use is ensured, so as to prevent leakage. At the same time, when doing the experiment, there are some points to note. Once the processing is not good, the effect will be affected. The following manufacturers of ductile iron pipes tell you what matters should be noted in the pressing process.

球墨铸铁管

1)球墨铸铁管试验前所有管道顶部除接口部位外同填压实土,厚度不得小于50 cm,所有管亡I采用法兰盲板封堵,主管道两侧预先焊接预留钢管,上游为排气、下游为打压口。

the top of all pipes before the test of ductile iron pipe is to fill in the compacted soil except for the interface part. The thickness should not be less than 50 cm. All pipe dead I is blocked by flange blind plate, and the steel pipe is pre welded on both sides of the main pipe, the upstream is the exhaust and the downstream is the pressing mouth.

(2)管采用法兰盲板封堵后,主管道每侧的盲板后用千斤顶(数量及吨位需经计算确定)直接顶到盲板上,千斤顶后座为横竖双排枕木,枕木后背是经过夯实的灰土或原状土。

 after the pipe is blocked by the flange blind plate, the blind plate on each side of the main pipe is directly mounted on the blind board with the jack (quantity and tonnage required by calculation). The back seat of the jack is a vertical double row of sleepers, and the back of the sleepers is rammed lime soil or original soil.     

(3)水压试验完成后管道内的水由水泵从最为便利的消 火栓阀、排气阀或大压阀排出。

 after completion of hydrostatic test in the pipeline from the water from the pump for the convenience of the fire hydrant valve, exhaust valve or valve discharge pressure.

(4)排气口选择在管道的最高点,在法兰盲板上焊接一根钢管,连接双球阀作为排气口;进水口没置在管道偏低的法兰接口处。打压口也设置在管道偏低的主管道的法兰接口处。  

the exhaust port is selected at the highest point of the pipe, welding a steel pipe on the flange blind plate, connecting the double ball valve as the exhaust port, and the intake port is not placed at the low flange interface of the pipe. The pressing port is also installed at the flange interface of the main pipe with a low pipeline.   

(5)加压泵选用电动压力泵或手动压力泵,压力表安装在打压三通口,管道与打压机之间设置闸阀,用于控制压力。

 the pressure pump selects the electric pressure pump or the manual pressure pump. The pressure meter is installed in the three port, and the gate valve is set between the pipe and the press to control the pressure.

(6)管道两端封堵后缓慢注水,同时将管道内气体通过排气阀排出。中间部位的法兰板待水溢后安装,充满水后进行密封检查。     

 water is injected slowly after both ends are blocked, and gas in the pipeline is discharged through the exhaust valve. The flange plate in the middle should be installed after water overflow, and sealed after water filling.