Difference between long-radius elbows and short-radius elbows

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The main differences between long-radius elbows and short-radius elbows lie in two aspects: different radii of curvature and different applications. 1. Different radius of curvature: The main difference between long-radius elbows and short-radius elbows lies in their different radii of curvature. The radius of curvature for a long-radius elbow is 1.5 times the outer diameter of the pipe, while that for a short-radius elbow is 1 time the outer diameter of the pipe. For detailed dimensions, refer to the standard GB/T12459—2017 \"Types and Parameters of Steel Butt-Welded Fittings\". 2. Different application scenarios: Long-radius elbows, due to their lower degree of wear and reduced resistance, are typically suitable for applications with high pressure or high flow rates. Short-radius elbows are generally used in situations where space is limited, or in applications with low-pressure fluids. Furthermore, short-radius elbows are also used in some cases as special pipelines for transporting solid particles, in order to reduce friction and erosion. If there are no specific restrictions or if it is not clearly specified in the contract, long-radius elbows should be preferred. Short-radius elbows are generally used in spaces with limited installation space. In summary, long-radius elbows are often the preferred choice because of their larger radius of curvature, which results in less wear and resistance during use. Short-radius elbows are suitable for specific applications, especially in situations with limited space.