The difference between the stainless steel elbow and stainless steel bend as the name suggests is essentially the difference between “head” and “tube”, but in the production process is very different. The most basic is the difference between the stainless steel elbow and stainless steel bend relatively short. R = 1 to 2 times in the stainless steel elbow, multiples is called again big bend. Cold bending tube can be used in the manufacture craft in ready-made straight pipe with pipe bender bending, one-time completed without secondary anticorrosion. But the elbow to the factory customized, do anti-corrosion, ordering cycle is long. Elbow higher than bend but price is much higher than bend, not do the anti-corrosion treatment of damaged is known to ccba bend, but its because cheap in some demand is not high engineering use very much.
Elbow manufacturers custom-made, anti-corrosion, ordering cycle is long. Cold bending tube can use ready-made straight pipe with pipe bender bending. One-time completed without secondary anticorrosion. Cold bending pipe construction technology has a oil standard, west-east gas with the enterprise standard.
But open area with elbow bent pipe is ok, only consider the cost, elbow to be roasted, cold bending can be bended tube elbow high cost, of course. Sometimes narrow area must turn the elbow, such as regarding the section of pipeline, because of smallstainless steel bend radius of curvature, generally for the 6 d, and stainless steel bend for 40 d.
Source: Zhejiang Yaang Pipe Industry Co., Limited (www.yaang.com)