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The rubber lined steel pipes are designed to be used in various abrasive pumping applications. Applications such as mill discharge, high pressure pumps, long tailings lines, demanding slurry pump applications and gravity pipes. Each end with vulcanized rubber seal fixed flange. Wear-resistant and corrosion-resistant rubber lined steel pipe is made of common steel pipe as framework material and using with excellent properties of wear-resistant, corrosion-resistant and heat-resistant rubber as lining layer. It is compounded by special technology with high-performance adhesive. Mainly used in metallurgy, electric power, chemical industry, petroleum, coal, cement and other industries area. In the mining work, it is widely used in the mine tailings conveying system, coal mine backfilling and related pipe system fields. In particular, the pipeline is very suitable for conveying the temperature between -50°C to +150°C medium, which is easy to wear and corrosion. We can increase the wall thickness at the pipe corner according to the customer's demand, thus extending the service life. Meanwhile, the service life of the rubber-lined steel pipe can reach 15-40 years in general. The pipe can be rotated nearly 90 degrees after 6-8 years of service. Each time of rotation can extend the serving life, Steel pipe can be repeatedly lined with rubber for three to four times, thus it reducing the use of costs in further. Parts of specification for rubber-lined pipe
OD/mm
Pipe wall thickness/mm
Working pressure/MPa
450
10~50
0~25.0
480
10~70
0~32.0
510
10~45
0~20.0
530
10~50
0~22.0
550
10~50
0~20.0
560
10~50
0~21.0
610
10~55
0~20.0
630
10~50
0~18.0
720
10~60
0~19.0
Physical Properties of rubber-lined pipe
Item
Standard
Thickness of lining (MPa)≥
16.5
The lining and the skeleton 180°peel strength (KN/m) ≥
8
Elongation at the lining (%) ≥
550
The lining of the lining is stretched (300%, MPa) ≥
4
The lining layer atonal abrasion loss(cm³/1.61km) ≤
0.1
Lining hardness (Sauer type A)
60±5
The rate of change of the intensity of the thermal ageing of the lining (70℃ x 72 h, %) ≤
10
Features 1. Excellent Construction 2. Good wear resistance and long service life 3. High strength and high impact resistance 4. Good corrosion resistance 5. Wide temperature range 6. Quick connection and easy installation
Parts of specification for rubber-lined pipe 
