There are three types of joints commonly used in dredging pipes. Let us compare the advantages and disadvantages of these types of joints.
1. Flange directly flanged.
Disadvantages, due to the extrusion at the cuff, the thickness is reduced by one-third compared to the tube, and the strength is significantly reduced. In the heating process, the straight edge is folded to the upper side by 90 degrees, the internal molecular weight changes seriously, and the overall performance decreases linearly. The most obvious feature is the price, which is easy to break.
2. The joint of the welded flange.
The flange is a pipe fitting, and the production process of the pipe fitting is injection molding, which is the same as casting steel, and is directly melted and formed. The disadvantages are low density, low wear resistance, fast aging and half the service life. Since the pipe and the pipe connection must be connected by a welder, there is a weld bead at the weld and it is easy to crack. Flange’s 90-degree straight edge hits hard objects and is easily damaged.
3. The joint of the lining steel ring.
The advantages are high density; long service life; wear resistance; because the joint is directly processed through the pipeline, and the flare is less than 30 degrees, the nozzle change is extremely small, and the overall physical properties of the pipeline are basically unchanged.
There is no protrusion at the junction between the steel ring and the pipe, the flow rate is smooth, and the conveying efficiency is high.
There is a steel ring support inside the nozzle, and the outer shape is a bell mouth shape. It is not easy to be damaged like a straight edge. Therefore, in a harsh environment, the external pressure resistance and anti-wear ability of the nozzle are strong, and it is hard to damage when it hits a hard object.
The dredging pipe products produced by our company adopt the connection method of the inner lining steel ring, which greatly guarantees the quality of the connection performance of the products and the pressure resistance is stronger. Welcome to visit and purchase.