... chloroprene rubber, CSM, buna-N rubber, EPDM and so on, and flange material is Q235, 304, 316 and so on. Applications of rubber ... standards. Installation methods and dimensions:It is made of rubber flanges, valve body and duck-billed, and with metal flange gaskets ... the easy installation, diverse and flexible installation methods, and can be repaired.Shortcoming: The rubber body is not suitable for ...