Place of Origin:
China
Brand Name:
JINGNING
Certification:
CE，ISO
Model Number:
RLJS
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Double Sphere Rubber Expansion Joint Type of EPDM Vulcanized Rubber Expansion Joint
Vulcanized rubber expansion joint can also be called: flexible fittings, joint expansion, flexible joint, pipe expansion joint, flexible connectors. it is a pipe connector with high elasticity, high air tightness, medium resistance and weather resistance. Vulcanized rubber expansion joint is a kind of composite rubber pipe which is composed of inner rubber layer, fabric reinforcement layer (the reinforcement layer has multi-layer scraped nylon cord), middle rubber layer, outer rubber layer, end reinforced metal ring or steel ring, and loose combination with metal flange or parallel joint after high temperature and high pressure vulcanization. The vulcanized rubber expansion joint makes use of the advantages of rubber, such as high elasticity, high gas resistance, medium resistance, weather resistance and radiation resistance. Vulcanized rubber expansion joint can reduce the vibration and noise of the pipeline, and compensate the thermal expansion and cold contraction caused by temperature change.
Performance characteristics of Vulcanized Rubber Expansion Joint
Vulcanized rubber expansion joint offer ultra-high performance, reliability and longevity, thus improving plant safety and the mechanical integrity of equipment. Due to the insertion of specially designed products in rigid piping systems, vulcanized rubber expansion joint are able to:
1. Reduce mechanical noise
2. Compensate for eccentricity
3. Eliminate electrolysis between dissimilar metals
Technical data of Vulcanized Rubber Expansion Joint
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Main data of Vulcanized Rubber Expansion Joint |
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| 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 flanged expansion joint 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 flanged expansion joint can be used as natural rubber, EPDM, chloroprene rubber, butyl rubber, butadiene rubber, fluororubber, etc. when the flanged expansion joint above DN200 is used for suspension water supply, the pipeline must have fixed support or fixed support, otherwise the flanged expansion joint shall be installed with anti falling device.
Vulcanized Rubber Expansion Joint details show
Vulcanized Rubber Expansion Joint production Flow
Do you know how is a Vulcanized Rubber Expansion Joint made? Let's see with JINGNING.
It is very important to select the appropriate joint expansion, to understand the compatibility of the medium and the selected material of the joint expansion, 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 joint expansion for any application.
Vulcanized Rubber Expansion Joint application
Vulcanized rubber expansion joint are widely used in various pipeline systems, such as the connection of joint expansion with pumps and valves, fire-fighting equipment and pipelines with large vibration. Pipes with frequent changes of heat and cold. Vulcanized rubber expansion joint 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 vulcanized rubber expansion joint has high wear resistance, vulcanized rubber expansion joint is also suitable for all industries of granular and powdery and gas low temperature.
FAQ
Q1: What’s the face to face length?
A1: The face to face length can be L130, L152,L203... We also could accept customized length according to your requirements.
Q2: What’s the material?
A2: The material can be EPDM,NBR,CR,SBR..It depends on the working condition.
Q3: What’s the working temperature?
A3: The working temperature is -20℃~100℃.
Q4: What’s the material of flange ( retaining rings )?
A4: The material of flange can be carbon steel, stainless steel and ductile iron.
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