1. Concentric Flange Type Expansion Butterfly Valve adds expansion compensation structure based on ordinary flanged concentric butterfly valve.
2. It absorbs axial displacement caused by pipeline thermal expansion and contraction, reducing pipeline stress.
3. Rubber resilient sealing structure achieves bidirectional zero leakage.
4. Widely used in water supply and drainage and municipal pipelines to compensate pipeline thermal deformation.
1. Provides axial expansion compensation to protect valve and pipeline flanges.
2. Bidirectional resilient sealing with zero leakage.
3. Flanged connection for stable installation.
4. Expansion limiting structure prevents over travel pull out.
5. Concentric structure delivers low operating torque.
6. Suitable for long distance exposed municipal pipelines.