... 2, CL150,CL200,CL300,CL600,CL900,CL1500,CL2500 Introduction:Insulating joint (Isolating Joint) is the key component in Cathodic Protection (CP) System ... , X52, X60, X65, X70, etc.Ø Pressure rating: ANSI Class 150, Class 300, Class600, Class 900, Class1500, Class2500Ø Ambient Temperature: -30°C-90°CØ Working ...