●The installation is simple and convenient, which is conducive to the disassembly, assembly and maintenance of the pump and valve.

●This model has an "extra flange" (4 flanges) which means that it can be mounted in direct connection to lugged valves. It can transmit the axial thrust of the pipeline back to the entire pipeline to avoid local pressure,can transmit axial force to protect valves, 

pumps and other equipment。the valve alone can be disassembled. 

●The dismantling joint is pull-proof.