Double expansion joint
- [Name]: Double expansion rubber joint
- [PN]: 0.6~2.5Mpa
- [Medium]: Air, water, seawater, oil, slurry, weak acid, alkali, etc.
- [Material]: NR, NBR, CR, EPDM, PTFE etc.
- [Products]: Expansion Rubber Joints, Double Ball Rubber Joint, Rubber Joint
Overview
The double arch design has greater allowed movements than the single arch.
Double expansion joints are available in diameters from 1" to 120", and can be made with any elastomer material. Because single, double, and triple arch models are available, various movement requirements can be met. Non-standard designs are manufactured as required.
Features
applications in a wide range of industries, including:
• Power Generation
• Pulp and Paper
• Chemical Processing
• Water/Waste Water
• Marine
• Mining
• Heating, Ventilating, and Air Conditioning
Expansion Joints offer superior performance, reliability, and service life. This in turn improves plant safety, increases the mechanical integrity of equipment, and allows customers to gain a competitive advantage in the marketplace.
Specification
| Model Item | JGD-A1 | JGD-A2 | JGD-A3 | |
| Working pressure Mpa（kgf/cm²） | 1.0（10) | 1.6（16） | 2.5（25） | |
| Explosive pressure Mpa（kgf/cm²） | 2.0（20） | 3.0（30） | 4.5（45） | |
| Vacuum kpa（mm/Hg） | 53.3（400） | 86.7（650） | 100（750） | |
| Applied temperature℃ | -15℃~+115℃ special reach -30℃~+250℃） | |||
| Applied medium | Rubber Joint is mainly applied medium Air, compress air, water, sea water, hot water, oil, acid, alkali. | |||
| Nominal diameter | Length(mm) | Flange thickness b(mm) | No. of Bolts | Bolt hold diameter (Domm) | Bolt hole center ring diameter(D1mm) | Axial displacement (mm) | Lateral displacement(mm) | Deflec tion angle（a1+a2） | ||
| DN | Inch | Extension | Compression | |||||||
| 40 | 1.5 | 165 | 18 | 4 | 18 | 110 | 10 | 20 | 20 | 30 |
| 50 | 2 | 165 | 20 | 4 | 18 | 125 | 10 | 20 | 20 | 30 |
| 65 | 2.5 | 175 | 20 | 4 | 18 | 145 | 10 | 20 | 20 | 305 |
| 80 | 3 | 175 | 20 | 8 | 18 | 160 | 10 | 20 | 20 | 30 |
| 100 | 4 | 225 | 22 | 8 | 18 | 180 | 15 | 30 | 25 | 30 |
| 125 | 5 | 225 | 22 | 8 | 18 | 210 | 15 | 30 | 25 | 30 |
| 150 | 6 | 220 | 24 | 8 | 23 | 240 | 15 | 30 | 25 | 30 |
| 200 | 8 | 325 | 24 | 8 | 23 | 295 | 20 | 40 | 30 | 30 |
| 250 | 10 | 325 | 26 | 12 | 23 | 350 | 20 | 40 | 30 | 30 |
| 300 | 12 | 325 | 26 | 12 | 23 | 400 | 20 | 40 | 30 | 30 |
| 350 | 14 | 325 | 26 | 16 | 23 | 460 | 20 | 40 | 30 | 30 |
| 400 | 16 | 325 | 26 | 16 | 25 | 515 | 20 | 40 | 30 | 30 |
| 450 | 18 | 325 | 28 | 20 | 25 | 565 | 25 | 45 | 30 | 30 |
| 500 | 20 | 350 | 28 | 20 | 25 | 620 | 25 | 45 | 30 | 30 |
| 600 | 24 | 350 | 30 | 20 | 30 | 725 | 25 | 45 | 30 | 30 |
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