... 31.8 Business Type: Manufacturer Detailed Product Description Monolithic Insulating joint 1)Material: CS,SS AS 2)Size:1/2"- ... 2, CL150,CL200,CL300,CL600,CL900,CL1500,CL2500 Introduction:Insulating joint (Isolating Joint) is the key component in Cathodic Protection (CP) ... Pressure).* Electrical Resistance: >= 20Mohm @ 1000v DC under dry air at 25 oC * Dielectrical voltage: >= 3.5kv AC 50Hz (1 minute) ...