What effect does the connection method have on the sealing performance of PVC suction hose under negative pressure conditions?

The connection method of PVC suction hose has an important impact on its sealing performance under negative pressure conditions. Sealing performance is crucial in the process of sucking and conveying liquid or granular materials, because a good seal can prevent air or external impurities from entering the system, ensure normal operation of the system, and prevent leakage.

The connection method directly affects the end seal of the hose. Under negative pressure conditions, hose end connections must have excellent sealing properties to prevent outside air or impurities from entering the hose system. Common connection methods include threaded connections, clamp connections and flange connections. Threaded connections often require precise installation to ensure that the threaded parts fit tightly to provide a reliable seal. The clamp connection achieves a sealing effect by clamping the hose and making it closely fit the pipe interface. Flange connections use flanges and bolts to connect the hose to other system components, requiring precise docking and tightening to maintain a good seal at the end.

Secondly, the connection method will also affect the overall flexibility and mobility of the hose. Under negative pressure conditions, hoses usually need to maintain a certain degree of flexibility while absorbing liquids or materials to adapt to connections at different angles and directions. Different connection methods may affect the bending radius and extensibility of the hose, thereby affecting its sealing performance in complex environments. For example, certain connections may restrict the free movement of the hose, reducing its ability to seal in curved or curved paths.

In addition, the quality of the connection method and the manufacturing process also have a direct impact on the sealing performance. Quality connecting components and manufacturing processes ensure the integrity and stability of connection points, providing a more reliable seal. The selection of materials, the design of connecting parts and the precision of the manufacturing process are all important factors that affect the quality of the connection method.