What is a VSSJA-2(B2F) double flange limited expansion joint？
The double flange limited expansion joint is made of metal casting or welding, and the loose part is sealed with trapezoidal ring rubber. Under the action of cover and bolt, the compression elastic deformation principle of rubber is used to force the sealing ring to deform, so that the sleeve expansion body forms a static seal between the outer wall of the expansion pipe. The metal material and sealing ring of the loose expansion joint are selected in strict accordance with the performance and user requirements. The loose expansion joint material outside filled with high strength anti-corrosive paint. The connecting bolt for the loose expansion joint is made of high strength lime steel or stainless steel. Due to there is a certain gap between the expansion of the loose sleeve and the expansion pipe, there is a certain axial and radial displacement. Therefore, the loose expansion joint can effectively compensate and reduce the thrust of the blind plate in the pipeline, which facilitates the installation, maintenance and replacement of pumps and valves.
Advantages of the VSSJA-2(B2F) double flange limited expansion joint：
1.Suitable for harsh environment
It can be used in places with harsh environmental conditions. For example, chemical pipelines or hot water or steam pipes with high temperature. The use of environment and industry is more extensive. Suitable for conveying sea water, fresh water, hot and cold water, drinking water, domestic sewage, crude oil, fuel oil, lubricating oil, refined oil, air, gas, temperature is not higher than 250 degrees of steam and granular powder and other media.
Convenient valve installation, can withstand the pipeline axial tension.
Metal and sealing ring in strict accordance with user requirements to choose different levels of material, each part of the connection bolt is made of carbon steel or stainless steel.
In the pipeline, it can not only effectively transfer the blind plate thrust, but also facilitate the installation, maintenance and replacement of water pump and valve.
1. WESDOM patent products, patent certification
The product side flanges comply with national, German, Russian, American, British and Japanese standards and other domestic and international standards for multiple pressures, easy connection and wide adaptability, which can reduce the type of purchase and stock.
2. The product has an independent identity to ensure traceability
Each wesdom product has its own unique identification number, to ensure product traceability.
3. Provide material inspection report
All wesdom products can provide the material inspection report of the main parts.
4. One-stop service
One-stop service, we not only supply high quality products, also supply solutions and after-sales service.
5. WESDOM has a lot of project experience
We have a lot of project experience in countries such as Pakistan and the Philippines, WESDOM has always been noticed all over the world, and trust comes from quality.
Quality control proces