Although, flexible rubber elbows could be designed to suit the needs of the buyer but the original manufacture is of stiff elbows as they last long and suffer less wear and tear. They can be also removed manually in case of repairing or replacement of the elbow or pipes. The typical elbows are inclined at an angle of 45 and 90. However, there are multiple other designs to look from. These elbows function well and show extreme resistance towards environment (ozone, air and weather), grease, oil, heat, punctures and pressure.
The basic view of the 90 and 45 elbows are:
The rubber elbows come in various diameters to suit a variety of applications such as hoses or pipes. The shape can also be customized as per the needs or specialty of the pipe such as cubical connectors. The rubber elbows are mostly made of natural rubber and silicone depending on the area of application. The silicone elbows are more ideally suited for high pressure and temperature applications where there might be compression of air involved. However, the natural rubber type is suitable for rest of the other applications. Although, elbows are strong but signs of wear and tear should be duly noted in order to change them before time. These signs could be softness, holes, cracking and crumbling of the rubber elbow.
Although there are innumerous applications of the rubber elbow but some of the most common ones that we see everyday are:
The average temperature range within which these elbows function efficiently is -400 to 2500 F. however, special designs can be made for higher temperature lasting up till 3000 F.