How to improve the wear life wear elbow

Wear elbow more than the straight tube wear, rational design to reduce wear and tear on the structure bends have a significant effect. Here are some wear elbow structures.
(A) long radius bends. Pneumatic Conveying originally used long radius elbow. But then bending experiments and practical experience shows that this structure wear serious, life is short, therefore,bottle plastic sprayer does not recommend the use of this structure. In order to extend its working life, the design uses the structure shown in Figure 10. The structure consists of a wide set of one pipe elbows, the gap between the two pipe filled with cement mortar. Article from: Jianhu Yuanda
(2) increasing the use of part of the circulation pipe cross-section, so that the outer part of the material flow tube deterioration intentional elbow at the stagnation in the material, so that the material particles collide with each other, to prevent wear and tear on the pipe wall. Elbow can be designed into a more rational structure.
(3) short radius elbows. With T-tube similar to a pipe that is introduced in the 1980s foreign short-radius (R / D of about 2 to 3) elbow. The elbow in the corner there is also a material build-intensive areas but does not exist "cavity." But it does not appear as one end of the barrier inside the T-elbow wall "feed back" situation.manual sprayer According to some test data indicated that short radius elbow long radius elbow wear resistance than good, more than one end of the T-tube somewhat less unreasonable.