also refer to Flush mount valve, in china may refer to dumping valve

Applications: Hydrocracking, Petroleum Production and Refining, Power Generation, Safety Systems, Shutdown Cooling, Utility, Hydrocarbon Processing, Condensate Cooling Water, Geothermal, Heat Recovery Steam Generators, High Pressure Safety Injection, High Temperature Service, Condensate

Industries: Boiling Water Reactors Safety, Boiling Water Reactors Non-safety, Cooling Systems, Heavy Oil and Upgrading, food industry

bottom tank tank valve (Disc type)