Di Nicola has developed the new series Dielectric Joints for water , putting in all It’s experience , professionalism and the use of modern prototyping technologies designed to verify the loads and stresses on the joint exercised in pressure . Di Nicola monolitic Joints are subject to hydraulic test and carry certification EN10204 31B . The special polymer resin guarantees in Di Nicola monolitic Joints standards air insulation demanded by major regulations equal to 5 Mhom and voltage drilling > = 5KV AC at maximum operating temperature of 70 ° C.