Single Bellow Flexible Rubber Joints/Rubber Expanion Joint
- Delivery Time:
- 30 Days
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Contact Now| Place of Origin: | Hebei, China (Mainland) |
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1.Connection:flange or unions
2.Body material:NR,CR,NBR,EPDM
Single Bellow Flexible Rubber Joints/Rubber Expanion Joint
1) Material | EPDM, NBR, NR, Polarity rubber |
2)Construction | Inner core, Outer cover, Frame, Metallic ring, M. I. union or Carbon steel flange |
3)Connector Approval | Flanged, flange type Threaded, Union type Rubber Joint |
4)Type | Single sphere or arch, Double spheres or arch |
5)Threads | DIN, BSPT, BSP, NPS, NPT, Metric, (ISO7/1, DIN 2999, ANSI B1.20.1) |
6)Flange Drilled | BS, DIN, ANSI, JIS or others provided drawing samples |
7)Surface | Galvanized, Epoxy |
8)Normal Specification | DN32 to1200mm(1 1/4 to 48 inch); For threaded union connector only be DN15 to 80mm(1/2 to 3 inch) |
9)Usage | Protecting piping and equipments systems from stress or motion |
10)Application | Air, Pressurized air, Water, Sea water, Hot water, Oil, Acid, Alkali etc |
2. By using different materials, it can be made many kinds to cater for different medium and environment. Such as acid resistance, alkali resistance, corrosion resistance, oil resistance and heat resistance etc.
3. The material is polar rubber, sealing is very good. It is in light weight, very easy for installation and maintenance. This product has long life performance, but must be not contact with sharp metal instruments to avoid piercing the sphere.
4. If used at overhead station, need to use flexible support, tight the bolt diagonally during installation.
5. If the pipeline pressure is too high, need to use limit bolt to connect the both ends flange together.
6. Flange connection comply with GB4216.34216. 5 standard, if use other standard, need to notice again. Working pressure grade is 0.6MPa, 1.0MPa, 1.6MPa, 2.5MPa.
If you interested in rubber expansion joints,pls contact me freely. 
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