VSSJA type flange loose sleeve expansion joint

The flange loose sleeve expansion joint VSSJA or AF is composed of a main body, a cover, a sealing ring, and fasteners The flange loose sleeve expansion joint adopts the same sealing principle as the gland loose sleeve compensation joint. The connection method is flange connection at one end and socket connection at the other end. The flange loose sleeve expansion joint is suitable for connecting valves and other equipment with pipelines. The flange loose sleeve expansion joint can compensate for the axial displacement and a certain amount of deflection and confidence of the pipeline while connecting, thereby protecting valves and other equipment The socket is also suitable for connecting with steel pipes, cast iron pipes, ductile iron pipes, PVC pipes, ABS pipes, etc At the same time, the design incorporates the advantages of similar products at home and abroad. The flange loose sleeve expansion joint has a simple and reasonable structure, reliable sealing performance, no need for welding, easy installation and disassembly. The flange loose sleeve expansion joint can compensate for displacement, misalignment and deflection within a certain range of the pipeline, and has a high reuse rate. The flange loose sleeve expansion joint is suitable for any medium pipeline and is used for connecting valves, pumps and other equipment with pipelines.

The product structure design of the flange loose sleeve expansion joint is reasonable, and the sealing performance is reliable. The two ends of the flange loose sleeve expansion joint are connected by socket, which is easy to install and disassemble. It is suitable for connecting steel pipes, cast iron pipes, ductile iron pipes, PVC pipes, ABS pipes, etc. that transport water, oil, gas, and particulate matter. The flange loose sleeve expansion joint can compensate for axial displacement, deflection, and eccentricity of the pipeline within a certain range while connecting the pipes

Working principle of VSSJA type flange loose sleeve expansion joint:

After installing the flange loose sleeve expansion joint on the pipeline, tighten the nut elastic sealing ring. The flange loose sleeve expansion joint relies on the mutual slope under the action of the nut cover to tightly press on the outer ring of the pipe for sealing and connection. The flange loose sleeve expansion joint allows the pipe to freely expand and contract in the middle of the joint when the temperature changes. When the foundation sinks, the pipe can deflect and ensure that there is no leakage in the seal. Therefore, the flange loose sleeve expansion joint serves the purpose of automatic compensation