In answer to your question the acronym 'ESVC' stands for Extra Strength Vitrified Clay. Hope this helps -Dan
how are the esvc pipe jointed
Bi pipe is a black iron pipe.
bore of the pipe is the internal diameter of pipe but the nominal diameter of pipe is the dia of a circle which is draw through a point which is situates at exactly half of the thickness of pipe or we can say that (outer dia of pipe- thickness of pipe )=nominal bore of pipe.
Pipe bore is the actual minimum inside diameter of a pipe, which is not necessarily the nominal pipe size.
wrought pipe bends means straight pipe bend using rotary draw pipe bender. or pipe bend by any method