These pipes have been specially designed and manufactured under stringent quality standards. They are tested to withstand system load comprising of pump, water and pipe weight with adequate factor of safety. Due to unique design of square threads, they can withstand considerable shock and jerk load during operation. Pipes supplied with separate couplers are integrally locked with the pipes. Couplers are locked with the pipes using wire lock and also with brass rivet. Supreme column pipes for submersible pump offer many advantages like-light weight, high tensile load capacity, leak proof joints and long life with economy and hence emerges as the best option for conventional metal pipes. These pipes are available in 25 to 100mm (1" to 4" ) in different classes. Pipes have female belled threads at one end and male threads on the other end and / or with separate coupler as per the details given in the table. Pipes are available in 3 meter length with square threads fitted with rubber sealing ring at male threaded end. These pipes are available in light duty, medium duty, standard duty, heavy duty and super heavy duty for varying needs based on installation depths 100 to 350 mtrs.