Structure characteristics: 1.For strong applicability of condensate water volume, it can discharge intermittently or continuously. 2.Large displacement double seat differential pressure mechanism and SCCV closing system are inbuilt so as to obtain small volume and large displacement. 3.Convenience in maintenance and service for the whole internal components made of stainless steel and installed on the bonnet. 4.High backing pressure rate: 90%. 5.Reliable gas-water separation. The valve is always in water sealing state and effectively keeps the steam from leakage. 6.The open-top float is water hammer resistant. The bucket is designed with overflow exhaust holes to effectively prevent from the steam lock or air block. 7.In combination with lever mechanism to compose high pressure valve.