... 's demands.USAGE:Insulating flanges are mainly applied to gas transmission pipelines, gas regulators, gauges, storages etc.With their main functions ... to separate and insulate different segments of?gas transmission pipes, devicesand lines, protect them form any chemical corrosion and ... , PN1.0MPa, PN1.6MPa, PN2.5MPa7Specs: DN50-DN1200 (2"~48") Best Qulity Insulating flange