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
|
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.
