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Shanghai Songjiang Jingning Shock Absorber Co.,Ltd.
Home ProductsSingle Sphere Rubber Expansion Joint

DN40-600 Rubber Expansion Bellows EPDM Flexible Rubber Joint

China Shanghai Songjiang Jingning Shock Absorber Co.,Ltd. certification
China Shanghai Songjiang Jingning Shock Absorber Co.,Ltd. certification
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DN40-600 Rubber Expansion Bellows EPDM Flexible Rubber Joint

DN40-600 Rubber Expansion Bellows EPDM Flexible Rubber Joint
DN40-600 Rubber Expansion Bellows EPDM Flexible Rubber Joint
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Large Image :  DN40-600 Rubber Expansion Bellows EPDM Flexible Rubber Joint

Product Details:
Place of Origin: China
Brand Name: JINGNING
Certification: CE,ISO
Model Number: RLJS
Payment & Shipping Terms:
Minimum Order Quantity: 1
Packaging Details: carton or wooden
Delivery Time: 5--15 working days
Payment Terms: Western Union, T/T, L/C, D/A, D/P, MoneyGram
Supply Ability: 10000 sets per week
Detailed Product Description
OEM: 17Years' Experience Product Name: Rubber Expansion Bellows DN40-600 EPDM Flexible Rubber Joint
Keyword: Expansion Bellows Material: EPDM,NBR,SBR,NR,PTFE,FKM,IIR,CR
Burst Pressure: 6.0Mpa Technical: Vulcanized,Casting
High Light:

DN40 Rubber Expansion Bellows


DN600 Rubber Expansion Bellows


DN40 EPDM Flexible Rubber Joint

Rubber Expansion Bellows DN40-600 EPDM Flexible Rubber Joint


Expansion bellows is commonly known as rubber joint. Expansion bellows is widely used in water, electricity, chemical industry and ship mooring system. The expansion bellows can be automatically extended with the natural change of weather during use. The structural material of the expansion bellows is nylon cord fabric, and the inner and outer surfaces are made of high strength aging resistant polar rubber. In order to prevent the natural shrinkage and reduce the aging fracture of expansion bellows in long-term use, steel wire is used for multiple protection.


Performance characteristics of expansion rubber​ joint


1. The expansion bellows has the advantages of small size, light weight, good ductility and convenient installation and maintenance.

2. Expansion bellows installation can cause horizontal, radial, angular offset, will not be limited by the pipe plug center, flange uneven surface.

3. When theexpansion bellows is working, it can reduce the structure transmission noise and has strong vibration absorption ability.


Technical data of expansion bellows​​


Main data of expansion bellows

Nominal diameter(DN) Length Axial displacement(mm) Horizontal displacement Deflexion angle
mm inch mm Extension Compression mm (a1+a2)°
32 1 1/4 95 6 9 9 15°
40 1 1/2 95 6 10 9 15°
50 2 105 7 10 10 15°
65 2 1/2 115 7 13 11 15°
80 3 135 8 15 12 15°
100 4 150 10 19 13 15°
125 5 165 12 19 13 15°
150 6 180 12 20 14 15°
200 8 210 16 25 22 15°
250 10 230 16 25 22 15°
300 12 245 16 25 22 15°
350 14 255 16 25 22 15°
400 16 255 16 25 22 15°
450 18 255 16 25 22 15°
500 20 255 16 25 22 15°
600 24 260 16 25 22 15°

Note: 1. The special requirements of expansion bellows can be customized according to user's drawing. 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 ball of expansion bellows can be used as natural rubber, EPDM, chloroprene rubber, butyl rubber, butadiene rubber, fluororubber, etc. when the expansion bellows above DN200 is used for suspension water supply, the pipeline must have fixed support or fixed support, otherwise the expansion bellows shall be installed with anti falling device.


Expansion bellows details show


DN40-600 Rubber Expansion Bellows EPDM Flexible Rubber Joint 0


Expansion bellows production Flow


Do you know how is a expansion bellows made?Let's see with JINGNING.


DN40-600 Rubber Expansion Bellows EPDM Flexible Rubber Joint 1


It is very important to know the compatibility between the medium of expansion bellows and the selected expansion bellows material, the range of full temperature, full pressure and full vacuum, the required movement of expansion bellows, and the size between pipe flanges when selecting the appropriate flexible joint pipe. With this information, JINGNING application engineers can help determine the ideal expansion bellows for any application.


Expansion bellows advantage


1. Factory price of  expansion bellows.

2. 16 years of manufacturing experience, 5 years of export experience.

3. Strict quality inspection, the quality far exceeds the industry standard.

4. Expansion bellows mold has a variety of specifications, support customization, OEM.

5. Provide free samples of expansion bellows.

6. Expansion bellows are in large stock.


Expansion bellows application


Expansion bellows are widely used in various pipeline systems, such as the connection of expansion bellows with pumps and valves, fire-fighting equipment and pipelines with large vibration. Pipes with frequent changes of heat and cold. Expansion bellows is mainly used for remote water and sewage lifting and transportation, water supply and cooling circulating water of thermal power plant, pipeline transportation of metallurgical industry, condensate water, chemical industry, cooling and dilution of petrochemical industry, and flexible connection between long and short distance pipelines in other industries. Because the expansion bellows has high wear resistance, expansion bellows is also suitable for all industries of granular and powdery and gas low temperature.




Q1:Can the expansion bellows be marked with customized logo?

A1:Yes,the expansion bellows can be marked with your logo. We could provide OEM&ODM service for expansion bellows.

Q2:What’s the face to face length of expansion bellows?

A2:The face to face length of expansion bellows can be L130, L152,L203... We also could accept customized length according to your requirements.

Q3:Can you provide drawings of expansion bellows?

A3:Yes,we could provide drawings of expansion bellows for you.Please contact us to get the drawing of expansion bellows.

Q4:What certificates of expansion bellows can you provide?

A4:We could provide CE,ISO certificate for our expansion bellows.


Q5:Can we get a sample of expansion bellows?

A5:Yes,we could provide samples for you to test the quality of our expansion bellows.

Q6:What’s the warranty period of expansion bellows?

A6:We provide 18 months’ warranty for our expansion bellows.                          

Contact Details
Shanghai Songjiang Jingning Shock Absorber Co.,Ltd.

Contact Person: Wu

Tel: +86 15093112546

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