Place of Origin:
China
Brand Name:
JINGNING
Certification:
CE
Model Number:
RFJY
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DN50-DN1200 Rubber Expansion Bellows Flexible Reducer Type
Rubber Expansion Bellows is widely used in chemical engineering, construction, water supply, drainage, petroleum, light and heavy industries,refrigeration, sanitation, water heating, fire protection, electric power and other basic projects.
Specifications of stainless steel flanged concentric reducing rubber expansion joint
| Material List | ||
| No. | Name | Material |
| 1 | Outer rubber layer | IIR, CR, EPDM, NR, NBR |
| 2 | Inner rubber layer | IIR, CR, EPDM, NR, NBR |
| 3 | Frame layer | Polyester cord fabric |
| 4 | Flange | Q235 304 316L |
| 5 | Reinforcement ring | Bead ring |
| specification | DN50~300 | DN350~600 |
| Working pressure (MPa) | 0.25~1.6 | |
| Bursting pressure (MPa) | ≤4.8 | |
| Vacuum (KPa) | 53.3(400) | 44.9(350) |
| Temperature (℃) | -20~+115(for special condition -30~+250) | |
| Applicable medium | Air, compressed air, water, seawater, hot water, oil, acid-base, etc.. | |
| DN(large)×DN(small) | Length | Axial displacement (extension) |
Axial displacement (compression) |
Radial displacement |
Deflecting angle |
| (a1+a2)° | |||||
| 50×32 | 180 | 15 | 18 | 45 | 35° |
| 50×40 | 180 | 15 | 18 | 45 | 35° |
| 65×32 | 180 | 15 | 18 | 45 | 35° |
| 65×40 | 180 | 15 | 18 | 45 | 35° |
| 65×50 | 180 | 15 | 18 | 45 | 35° |
| 80×32 | 220 | 15 | 18 | 45 | 35° |
| 80×50 | 180 | 20 | 30 | 45 | 35° |
| 80×65 | 180 | 20 | 30 | 45 | 35° |
| 100×40 | 220 | 20 | 30 | 45 | 35° |
| 100×50 | 180 | 20 | 30 | 45 | 35° |
| 100×65 | 180 | 22 | 30 | 45 | 35° |
| 100×80 | 180 | 22 | 30 | 45 | 35° |
| 125×50 | 220 | 22 | 30 | 45 | 35° |
| 125×65 | 180 | 22 | 30 | 45 | 35° |
| 125×80 | 180 | 22 | 30 | 45 | 35° |
| 125×100 | 200 | 22 | 30 | 45 | 35° |
| 150×50 | 240 | 22 | 30 | 45 | 35° |
| 150×65 | 200 | 22 | 30 | 45 | 35° |
| 150×80 | 180 | 22 | 30 | 45 | 35° |
| 150×100 | 200 | 22 | 30 | 45 | 35° |
| 150×125 | 200 | 22 | 30 | 45 | 35° |
| 200×80 | 260 | 22 | 30 | 45 | 35° |
| 200×100 | 200 | 25 | 35 | 40 | 30° |
| 200×125 | 220 | 25 | 35 | 40 | 30° |
| 200×150 | 200 | 25 | 35 | 40 | 30° |
| 250×100 | 260 | 25 | 35 | 40 | 30° |
| 250×125 | 220 | 25 | 35 | 40 | 30° |
| 250×150 | 220 | 25 | 35 | 40 | 30° |
| 250×200 | 220 | 25 | 35 | 40 | 30° |
| 300×125 | 260 | 25 | 35 | 40 | 30° |
| 300×150 | 220 | 25 | 35 | 40 | 30° |
| 300×200 | 220 | 25 | 35 | 40 | 30° |
| 300×250 | 220 | 25 | 35 | 40 | 30° |
| 350×200 | 230 | 28 | 38 | 35 | 26° |
| 350×250 | 230 | 28 | 38 | 35 | 26° |
| 350×300 | 230 | 25 | 38 | 40 | 26° |
| 400×200 | 230 | 25 | 38 | 40 | 26° |
| 400×250 | 240 | 28 | 38 | 35 | 26° |
| 400×300 | 240 | 28 | 38 | 35 | 26° |
| 400×350 | 260 or | 28 | 38 | 35 | 26° |
| 285 | |||||
| 450×250 | 280 | 28 | 38 | 35 | 26° |
| 450×300 | 240 | 28 | 38 | 35 | 26° |
| 450×350 | 240 | 28 | 38 | 35 | 26° |
| 450×400 | 240 | 28 | 38 | 35 | 26° |
| 500×250 | 280 | 28 | 38 | 35 | 26° |
| 500×300 | 280 | 28 | 38 | 35 | 26° |
| 500×350 | 240 | 28 | 38 | 35 | 26° |
| 500×400 | 230 | 28 | 38 | 35 | 26° |
| 500×450 | 240 | 28 | 38 | 35 | 26° |
| 600×400 | 240 | 28 | 38 | 35 | 26° |
| 600×450 | 240 | 28 | 38 | 35 | 26° |
| 600×500 | 240 | 28 | 38 | 35 | 26° |
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