Flange connection of HDPE drain pipe

Flange connections are mainly used for the connection of polyethylene pipes and metal pipes or valves, flow meters, pressure gauges and other ancillary equipment. Flange connections are mainly composed of polyethylene flange connections, steel or aluminum flanges, gaskets or sealing rings, bolts, nuts, etc. Flange connection is to achieve the purpose of connection by tightening bolts and nuts, so that the flange connection piece is in close contact with the flange piece.