Concrete pump pipe is a new type of construction parts with the appearance of concrete pumps, Pump pipes are generally divided into three types, DN125, DN150 and DN80. And they also have their own high pressure and low pressure point. 125 type pump tube low pressure model is the diameter of Φ133 pipe, and the high pressure for the diameter is Φ140 pipe. The low pressure model of DN150 pump pipe is the diameter of Φ159 pipe, and the high pressure for the diameter is Φ168 pipe. The pipe head