Flange Retractable Butterfly Valve

Flange retractable butterfly valve can compensate thermal expansion and contraction on pipe lines automatically. It is easy for assemble and disassemble. Flange retractable butterfly valve is widely used for pipe line to regulate or cut off medium in petroleum, chemical, electricity, etc.
Working temperature: =425?
Nominal pressure PN: =1.6MPa
Flange Retractable Butterfly Valve