Development Trend and Advantage of Wear Resistant Elbow
Development Trend and Advantage of Wear Resistant Elbow
With the development of wear-resistant elbow technology, various kinds of plastic pipes can be provided for indoor heating system at present. The wear-resistant elbow pipe has the advantages of smooth inner wall, low resistance to heat medium flow, acid and alkali resistance, long service life and convenient installation. In recent years, wear-resistant elbows have been widely used in heating systems. As a new generation of heating pipe, wear-resistant elbows are gradually becoming the mainstream products in the heating market. In the existing wear-resistant elbow products, it has the characteristics of sanitation, processability, high temperature resistance and ultraviolet resistance. It is a new material with high added value.
The wear-resistant elbow is made of polyethylene pipe by special molecular design and synthesis process. Its characteristics are:
1. Temperature and pressure resistance, good flexibility, heat resistance, its performance is higher than other plastic pipes. Easy installation, good thermal conductivity, suitable for floor heating system, recyclability.
2. P wear-resistant elbow pipe has excellent impact strength, which can be welded by hot melt and mechanically connected, and is superior to PB-PP-R in heat conductivity.
Comparisons of wear-resistant elbows with other performances:
1. Long-term pressure resistance, only from the point of design stress, the pressure resistance of wear-resistant elbow is good. However, due to various factors, the actual wall thickness of floor heating pipes is usually 2 mm. Under this wall thickness, all kinds of pipes can meet the requirements of floor heating, and the advantages of pressure resistance of wear-resistant elbow pipe can not be reflected.
2. Thermal conductivity: Pipes for floor heating need good thermal conductivity.
3. Low-temperature heat shock resistance: PE-RT and PE-EX have better low-temperature impact resistance. In winter construction, the pipe is not easy to be impacted and ruptured, which increases the flexibility of construction arrangement.
4. Environmental protection: PE-RT can be recycled without polluting the environment. However, PEX can not be recycled, which will lead to secondary pollution.
5. Processing stability: PEX has some problems such as controlling crosslinking degree and crosslinking uniformity. Processing complexity and processing directly affect the performance of pipes.
Development Trend of Wear Resistant Elbow Pipe Material: Wear Resistant Elbow Material not only has qualified creep rupture curve, but also its pipe material price is moderate, construction is relatively convenient and fast compared with other varieties. The connection form belongs to the current reliable standard interfusion hot melt connection form. The hole diameter of the pipe parts is larger than the inner diameter of the same specification pipe. Because there is no mechanical connection mode of local diameter reduction in the system, the fluid resistance of the system is relatively small.