Wall thickness tolerances for elbows and pipes are

Wall thickness tolerances for elbows and pipes are introduced  

The company mainly according to customer requirements to produce a variety of different types and materials of pipe fitting products.  Elbow, tee, size head, pipe cap, flange, steel pipe and other pipe fitting products.  

The elbow should be corrected in this thermal condition.  It is not allowed that some elbows will distort after improper handling.  In addition, the same after pushing the head is usually the front end of the outer diameter is large, to be corrected through the correction mold.  In reality, the correcting die is a press. It needs a set of dies, two semi-arcs, one at the top and one at the bottom.  The corrected outer diameter meets the size requirements of the product.  The wall thickness is controlled by the wall thickness of the incoming material.  Both are 12.5 percent.  During the course of driving system, normal circumstances wall thickness should not be change, but if only because what reason, some places will produce wall signs, with the same lifting, usually wall thickness to add some allowance, such as elbow is 8.18 mm wall thickness, usually carry around 8.5 mm pipe, to guard against in pushing system error due to the local reduction of thickness.  After the shape is corrected, the outer diameter and wall thickness of the elbow have reached the requirements.  Next, the finishing process is carried out. After shot peening, the iron oxide on the inside of the elbow is cleaned up, and the two ends are beveled for welding the carbon steel elbow.  

Elbow manufacturers manufacture pipe fittings in accordance with the requirements of customers for processing and production, and the wall thickness and material of products will obtain customer satisfaction and recognition before they are transported to the location designated by customers.