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Expansion bellows for pipes
The double ball rubber expansion joint is composed of rubber body and flange. The rubber material of the expansion joint is NR / NBR / EPDM / PTFE, which can be used for different media, such as EPDM with weak acid and weak alkali. Flange materials can be galvanized carbon steel, painted ductile iron, stainless steel 304 / 316, etc.
Expansion bellows for pipes performance
Using the advantages of high elasticity, high gaseous state, medium resistance, weather resistance and radiation resistance of rubber, the expansion joint can reduce the vibration and noise of pipeline and compensate the thermal expansion and cold contraction caused by temperature change.
1. Reduce vibration and noise of pipeline system; Completely solve various pipeline problems, such as pipeline displacement, axial bending, etc.
2. According to different material requirements, acid, alkali and corrosion resistant expansion joints can be made to adapt to different media and environments.
3. Good sealing performance, light weight, convenient installation and maintenance and long service life. However, please keep away from sharp metal to prevent the steel ball from breaking.
Part of expansion bellows for pipes technical data
Main data of expansion bellows for pipes
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Nominal diameter(DN) | Length | Hole diameter quantitvd | Axial displacement(mm) | Horizontal displacement | Deflexion angle | ||
mm | inch | mm |
| Extension | Compression | mm | (a1+a2)° |
40 | 1 1/2 | 165 | 18-4 | 30 | 50 | 45 | 15° |
50 | 2 | 165 | 18-4 | 30 | 50 | 45 | 15° |
65 | 2 1/2 | 175 | 18-4 | 30 | 50 | 45 | 15° |
80 | 3 | 175 | 18-8 | 35 | 50 | 45 | 15° |
100 | 4 | 225 | 18-8 | 35 | 50 | 40 | 15° |
125 | 5 | 225 | 18-8 | 35 | 50 | 40 | 15° |
150 | 6 | 225 | 22-8 | 35 | 50 | 40 | 15° |
200 | 8 | 325 | 22-8 | 35 | 60 | 40 | 15° |
250 | 10 | 325 | 22-12 | 35 | 60 | 35 | 15° |
300 | 12 | 325 | 22-12 | 35 | 60 | 35 | 15° |
350 | 14 | 330 | 22-16 | 35 | 60 | 35 | 15° |
400 | 16 | 330 | 26-16 | 35 | 60 | 35 | 15° |
450 | 18 | 330 | 26-20 | 35 | 60 | 35 | 15° |
500 | 20 | 350 | 26-20 | 35 | 60 | 35 | 15° |
600 | 24 | 350 | 30-20 | 35 | 60 | 35 | 15° |
700 | 28 | 350 | 30-24 | 35 | 60 | 35 | 30° |
800 | 32 | 400 | 30-24 | 35 | 60 | 35 | 30° |
Note: the special requirements of double ball rubber expansion joint can be customized according to the user's drawings. The flange standard is GB / t9115. 1-2000. Various flange standards (GB, JB, Hg, CB, ANSI, DIN, BSEN, NF, en, JIS, ISO, etc.) can be selected for production. The rubber balls of expansion joints can be used as natural rubber, EPDM, neoprene, butyl rubber, butadiene rubber, fluororubber, etc. When the double ball rubber expansion joint of DN200 and above is used for suspended water supply, the pipeline must have fixed support or fixed support, otherwise, the double ball rubber expansion joint shall be equipped with anti falling device.
Expansion bellows for pipes details show
Production flow
Do you know how is a expansion bellows for pipes made?Let's see with JINGNING.
Expansion bellows for pipes advantage
1. The price is ex factory.
2. 17 years of manufacturing experience and 5 years of export experience.
3. Strict quality inspection, the quality far exceeds the industry standard.
4. It has a variety of specifications and supports customization and OEM.
5. Provide free samples.
6. There is a large amount of inventory.
Expansion bellows for pipes application
Because of its good comprehensive performance,double sphere rubber expansion joint is widely used in chemical engineering, construction, water supply, drainage, petroleum, industry, refrigeration, sanitation, water heating, fire protection, electric power and other basic engineering.
OEM&ODM
How to choose the appropriate double sphere rubber expansion joint? It is necessary to know the compatibility of the medium and the selected material, the range of full temperature, full pressure and full vacuum, the amount of movement required and the size between the pipe flanges. With this information, Jingning application engineers can help determine the ideal double sphere rubber expansion joint for any application.
Note:The special requirements of double sphere rubber expansion joint can be customized.
