Will have no water steel (sulfuric acid) with white powder into the air pressure of the oil tube, such as copper sulphate from white to blue, it can also prove oil there is water there.
将无水硫酸钢(白色粉末)放进装有空压机油的试管中，如硫酸铜由白色变为蓝色，这也能证明油中有水分存在。
Therefore, the copper plain tube in HP heaters can be replaced with the steel spirally fluted tube for the requisition of having no copper in boiler feed water system.
因此，可以采用钢质螺旋槽管替代高压加热器中的铜光滑管，实现锅炉给水系统无铜化运行的要求。
The corrosion inhibitors should be selected and used correctly through testing based upon the water quality and copper tube conditions.
应根据拟使用的水质和钢管条件，通过试验，正确选择缓蚀剂和缓蚀剂使用浓度。
Cancel the copper pipe connection and water tank inside dish tube; completely eradicate the potential hazard of leakage, corrosion, incrustation, etc.
取消铜管连接和水箱内盘管，杜绝渗漏、腐蚀、水垢等隐患。
People who want to family purification ros may become high cost due to high energy costs and water wasteful, and most families will need to use noncorrosive pipeline etc as PEX copper tube replaced.
人谁不想全家净化，ROS可能成为成本过高由于高能源成本和水的浪费，而且大多数家庭将需要使用非腐蚀性管道等作为PEX的铜管更换。
People who want to family purification ros may become high cost due to high energy costs and water wasteful, and most families will need to use noncorrosive pipeline etc as PEX copper tube replaced.
人谁不想全家净化，ROS可能成为成本过高由于高能源成本和水的浪费，而且大多数家庭将需要使用非腐蚀性管道等作为PEX的铜管更换。
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