Ductile iron pipes buried (1) check the pipe pipe specification should comply with the design requirements, and no defects such as cracks, voids.
Check the appropriate location in pipe yards.
(2) pipe and emissions will examine qualified and has set up a cleaning nozzle pipe, automobile and mobile crane to the construction site;
Smokes emissions on the river bank (
Not stacked soil side)
To make bell mouth water direction (in
Should not be pipe piles placed, otherwise will cause secondary handling)
(3) laying and counterpart to crane (
Methods will discharge in river bank pipe line by root into the groove of the sand layer, the interface is.
Then through the center of the first two inspection Wells, tail straight pipe pull a chalk line (
Ink fountain line)
, the line is the center line of the pipeline, according to the adjust the pipe line, pipe straight;
And level in detecting the slope, slope direction, make it meet the design requirements.
(4) process ductile cast iron
pipe connecting the socket rubber ring interface (
The original from: http://www.
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is something that has been around for a few decades now, enjoying it's heyday back in the cast iron company.