The double-sided submerged arc spiral welded steel pipe made by the thin-walled spiral pipe manufacturer feeds the strip into the welded pipe unit. After rolling with multiple rollers, the strip is gradually rolled up to form a round pipe blank with open clearance. The pressure reduction of the extrusion roller is adjusted so that the weld clearance is controlled at 1~3mm and both ends of the welding joint are flush.Thin-walled helical pipe is formed by forming machine and welded by submerged arc welding to produce thin-walled helical pipe of different specifications.The production technology of double-sided buried thin wall spiral pipe is simple, the operation fee is low for medium and large diameter welding pipe, and it has the advantage of low cost operation.Characteristics of thin-walled spiral pipe and its standard classification: Double-sided submerged arc welding pipe (SY5036) used for pressure fluid transport is mainly used for transporting oil and natural gas;Spiral welded high frequency steel pipe (SY5038), welded by high frequency lap welding, used for confined fluid transport, submerged arc welded pipe with double sides.Double submerged arc welded pipe with high frequency for pressure fluid transport.There should be a certain passage between the stacks of double-sided submerged arc welding pipe. The width of the inspection passage is generally about 0.5m, and the width of the access passage is generally 1.5-2m according to the size of materials and transportation machinery.