How does the 90° hydraulic square elbow flange fitting help achieve a stable connection with the pipe end?

The 90° hydraulic square elbow flange fitting helps achieve a stable connection with the pipe end, mainly through its unique design and connection method. The elbow is designed to be 90°, which not only changes the direction of the pipe, but also makes the connection more compact and stable. The square design may provide better installation space or structural support in some applications compared to the round one. One end of the elbow is designed as a flange surface. Flange connection is one of the commonly used connection methods in the pipeline system. It connects two flanges tightly together by bolts to achieve a stable connection between pipeline components. Flange connection can withstand high pressure and is easy to disassemble and maintain. There is an O-ring seal on the flange surface. The O-ring is a widely used sealing element with good sealing performance and corrosion resistance. It can effectively prevent medium leakage and ensure the sealing and safety of the pipeline system.
During the connection process, first of all, it is necessary to ensure the cleanliness and flatness of the pipe end and the elbow flange fitting to better achieve sealing. At the same time, check whether the O-ring is intact and has no damage or aging. Place the O-ring in the sealing groove of the elbow flange fitting, and ensure that the O-ring is in the correct position without distortion or displacement. Align the elbow flange fitting with the flange at the pipe end, and ensure that the center lines of the two are on the same horizontal line and the flange faces are parallel. This helps to achieve uniform bolt tightening force and improve the stability of the connection.
Use suitable bolts and nuts to tightly connect the two flanges together. During the tightening process, diagonal tightening should be adopted, and the bolts should be tightened step by step and evenly to avoid flange deformation or leakage caused by uneven tightening. After the connection is completed, necessary inspections and tests, such as pressure tests and leak tests, should be carried out to ensure that there is no leakage at the connection and that it can withstand the pressure within the design range.
The combination of flange connection and O-ring sealing provides excellent sealing and stability for pipeline connections. Flange connection realizes a rigid connection between pipeline components through the tightening action of bolts and nuts, and can withstand large tensile and shear forces. The O-ring seal, with its good elasticity and sealing performance, effectively fills the small gap between the flange surfaces and prevents medium leakage. This double-protection design makes the connection not only stable and reliable, but also has excellent sealing. In addition, the removal and reinstallation of flange connections are relatively simple and can be done without special tools. This convenience makes pipeline maintenance and overhaul easier and more efficient. When pipeline components need to be replaced or overhauled, the connection can be easily separated by loosening the bolts and nuts, which greatly reduces maintenance costs and time.
The cleanliness and flatness of the pipe ends and elbow flange fittings should be ensured to avoid impurities affecting the sealing effect. Diagonal tightening should be adopted to avoid flange deformation or leakage caused by uneven tightening. Regularly check and maintain the fittings to ensure the integrity and sealing performance of the O-rings.