... partner 4.12 years OEM experience pipe connection:1.BF-Type Pipe Connection Description 1.one side is connected ... dismantling.It will have axial displacement in operation 2. BF-Type MaterialNo.NameQtyMaterial1main body1QT450-10,Q235A2seal ring1NBR,CR,EDPM3gland1QT450-10 ... 35#7short boltnQ235A,35# 3. BF-Type Single Flange pipe connection Basic Size: 4. BF-Type Single Flange pipe connection have ...