Speaking of steel elbow
, we all know that it is a pipe fitting used to change the direction of the pipe in the pipe system. There are many ways to classify steel elbows, which can be divided into angles: 45°, 90°, and 180°. These three are more commonly used. According to engineering needs, they also include other abnormal angle steel elbows, such as 60°, etc.; according to the material of steel elbows, they are divided into stainless steel elbows, carbon steel elbows, etc.; according to the production method, it can be divided into pressed elbows, Forged elbows, pushed elbows, cast elbows, etc. However, I don’t know if you have discovered that: the radius of steel elbows is divided into long and short. Therefore, steel elbows are also divided into long-radius steel elbows and short-radius steel elbows according to the radius. What is the difference between long-radius steel elbows and short-radius steel elbows?
The long-radius steel elbow is a relatively short radius because there is a short radius, so there is a long radius. The long radius steel elbow is a more commonly used elbow fitting connected to pipes or pipes, usually called a 1.5D elbow. Short-radius steel elbows are naturally shorter than long-radius steel elbows. They are often referred to as 1D elbows. There are fewer short-radius steel elbows than long-radius steel elbows. There are also situations where long-radius steel elbows are used and no space is allowed, such as in marine engineering conditions.
Similarities and differences between long-radius steel elbows and short-radius steel elbows:
Long-radius steel elbows and short-radius steel elbows have many similarities, for example, they connect to pipe. What they do is change the direction of the pipe; their diameter, angle, material, wall thickness, etc. can be kept consistent, etc.
The difference between long-radius steel elbow and short-radius steel elbow:
(1) Judging from the length of the steel elbow, the long-radius steel elbow must be longer than the short-radius steel elbow, and it is 0.5DN longer.
(2) From the performance point of view, the wear degree of the long-radius steel elbow is less than that of the short-radius steel elbow, the corrosion force is also greatly reduced, and the resistance is also small, which is better than the short-radius steel elbow.
(3) From the perspective of the use range of steel elbows, generally speaking, long-radius steel elbows (R = 1.5DN) should be; short-radius steel elbows (R = 1.0DN) are usually used for size Limited occasions. The working pressure should not exceed 0.8 times that of the long-radius steel elbow of the same specification.
Suggestion: Try not to choose short-radius steel elbows where long-radius steel elbows can be used. When long-radius steel elbows cannot be used, use short-radius steel elbows. In short, when choosing When making steel elbows, we need to decide according to the actual working conditions of the pipe or pipeline.