Cheapest Price Hard Sealed Butterfly Valve - Telescopic Butterfly Valves Expansion Butterfly Valves – CVG

Features
▪ The retainer retractor has a flange at one end and a socket at the other end. Compared with traditional expanders, this product has light weight, superior performance, novel structure, simple and convenient installation, good sealing effect. And the sealing strength can be adjusted freely according to needs.
▪ Can be quickly connected with plastic pipes, cast iron pipes, ductile iron pipes, steel pipes, valves, pipe fittings, etc.
▪ Very convenient to use and manpower saving. Whether it is a new installed pipeline or an original pipeline needing maintenance, there is no need for on-site welding and making an opening. It only needs to be connected according to the installation instructions.
▪ A flexible rubber seal is used between the socket and the pipe. The seal strength can be adjusted, making the seal safer and more reliable.
▪ With a large amount of expansion and contraction compensation. Especially for plastic pipes with large thermal expansion coefficient and pipelines with large stress. It’s the most suitable choice.
▪ The bolts can be tightened again to enhance the sealing effect when the sealing effect is weakened after many years of use.

Material Specifications

Installation