Reliable Pipes And Tubes Ltd manufactures Lap Joint Flanges. Reliable Pipes and Tubes Ltd is an ISO 9001:2000 certified company. Lap Joint Flanges are availed with 1/2 to 24 inch sizes. It offers the complete range of classes 150 to 2500. This Lap Joint Flanges is applicable when quick assembly and disassembly of pipe line section is required under limited working pressure.