Long-radius rubber bend
Flanged long-radius rubber bend for smoothly changing the direction of slurry and other abrasive flows.
Rubber · Cord · Flanges
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Long-radius rubber-lined bend (RBF)
The long-radius rubber-lined bend smoothly changes the flow direction when conveying abrasive slurry.
Product information
The bend consists of a steel jacket and an inner rubber chamber. The chamber is made of natural or synthetic rubber for a larger margin of abrasion resistance. The jacket is high-strength steel, so the bend does not deform in service. Installation needs no special tools and is done with bolts.
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Materials
- High-strength steel jacket
- Inner rubber chamber (natural/synthetic rubber)
Advantages
- Smooth change of flow direction
- High-strength steel jacket: no deformation in service
- Larger margin of abrasion resistance
Flange connection types
- 1Welded flangeThe flange is welded to the bend's steel jacket. Dimensions in the table below.
- 2Rotating flangeThe flange turns freely for easier installation. Dimensions in the table below.
- 3Transition flangesBends can be supplied with transition flanges to change from one diameter to another under Russian and international measurement systems.
- 4Inner working chamber rubberTwo standard versions depending on the particle size of the conveyed material: “01” for slurries up to 2.0 mm, “02” up to 10 mm.
Technical specifications
Products can also be manufactured to the customer's drawings and technical requirements, including larger diameters.
| Inner diameter | 50–610mm |
|---|---|
| Wear-resistant layer thickness | 12–30mm |
| Working pressure | 2.0MPa |
| Vacuum | -0.08MPa |
| Bend radius | 150–1830mm |
| Bend angles | 90°, 75°, 60°, 45°, 30°; non-standard on request |
Products can be made to the customer's drawings and technical requirements, including larger diameters, based on the specific operating conditions.
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Send us the diameter, operating conditions and timeline — we will reply with an engineering review and an indicative price.
Size tables
Data from the 2025 factory catalogue. All dimensions in mm. Products can be manufactured to the customer's drawings and technical requirements, including larger diameters, based on the specific operating conditions.
Long-radius rubber-lined bend with welded flange (RBF)
| Designation | Inner diameter d, mm | A, mm | B, mm | Layer, mm | Working pressure, MPa | Vacuum, MPa | R, mm | Bend weight, kg | Connection size D1, mm | Hole d1, mm | n, pcs |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RBF-050.00.00.00 | 50 | 165 | 165 | 12 | 2.0 | -0.08 | 150 | 19 | 125 | 18 | 4 |
| RBF-065.00.00.00 | 65 | 215 | 215 | 15 | 2.0 | -0.08 | 200 | 22 | 145 | 18 | 4 |
| RBF-076.00.00.00 | 76 | 245 | 245 | 15 | 2.0 | -0.08 | 230 | 23 | 160 | 18 | 8 |
| RBF-102.00.00.00 | 102 | 320 | 320 | 15 | 2.0 | -0.08 | 300 | 27 | 180 | 18 | 8 |
| RBF-114.00.00.00 | 114 | 360 | 360 | 15 | 2.0 | -0.08 | 340 | 33 | 240 | 18 | 8 |
| RBF-133.00.00.00 | 133 | 420 | 420 | 15 | 2.0 | -0.08 | 400 | 39 | 240 | 22 | 8 |
| RBF-152.00.00.00 | 152 | 480 | 480 | 15 | 2.0 | -0.08 | 460 | 47 | 240 | 22 | 8 |
| RBF-159.00.00.00 | 159 | 500 | 500 | 15 | 2.0 | -0.08 | 480 | 50 | 250 | 22 | 8 |
| RBF-170.00.00.00 | 170 | 530 | 530 | 17 | 2.0 | -0.08 | 510 | 65 | 270 | 22 | 8 |
| RBF-200.00.00.00 | 200 | 620 | 620 | 17 | 2.0 | -0.08 | 600 | 90 | 295 | 22 | 8 |
| RBF-219.00.00.00 | 219 | 680 | 680 | 17 | 2.0 | -0.08 | 660 | 105 | 325 | 22 | 8 |
| RBF-245.00.00.00 | 245 | 765 | 765 | 17 | 2.0 | -0.08 | 740 | 140 | 350 | 22 | 12 |
| RBF-273.00.00.00 | 273 | 845 | 845 | 18 | 2.0 | -0.08 | 820 | 170 | 375 | 22 | 12 |
| RBF-300.00.00.00 | 300 | 925 | 925 | 18 | 2.0 | -0.08 | 900 | 190 | 430 | 22 | 12 |
| RBF-325.00.00.00 | 325 | 1000 | 1000 | 18 | 2.0 | -0.08 | 975 | 220 | 450 | 22 | 16 |
| RBF-351.00.00.00 | 351 | 1075 | 1075 | 18 | 2.0 | -0.08 | 1050 | 235 | 470 | 22 | 16 |
| RBF-377.00.00.00 | 377 | 1155 | 1155 | 18 | 2.0 | -0.08 | 1130 | 285 | 515 | 26 | 16 |
| RBF-402.00.00.00 | 402 | 1230 | 1230 | 18 | 2.0 | -0.08 | 1200 | 375 | 550 | 26 | 16 |
| RBF-426.00.00.00 | 426 | 1305 | 1310 | 18 | 2.0 | -0.08 | 1280 | 380 | 585 | 26 | 16 |
| RBF-457.00.00.00 | 457 | 1400 | 1400 | 18 | 2.0 | -0.08 | 1370 | 410 | 630 | 26 | 20 |
| RBF-508.00.00.00 | 508 | 1550 | 1550 | 20 | 2.0 | -0.08 | 1520 | 500 | 660 | 26 | 20 |
| RBF-530.00.00.00 | 530 | 1630 | 1630 | 25 | 2.0 | -0.08 | 1590 | 710 | 710 | 30 | 20 |
| RBF-610.00.00.00 | 610 | 1870 | 1870 | 30 | 2.0 | -0.08 | 1830 | 900 | 760 | 30 | 20 |
Products can be made to the customer's drawings and technical requirements, including larger diameters, based on the specific operating conditions.
Long-radius rubber-lined bend with rotating flange (RBF)
| Designation | Inner diameter d, mm | A, mm | B, mm | Layer, mm | Working pressure, MPa | Vacuum, MPa | R, mm | Bend weight, kg | Connection size D1, mm | Hole d1, mm | n, pcs |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RBF-050.00.00.00 | 50 | 165 | 165 | 12 | 2.0 | -0.08 | 150 | 20 | 160 | 18 | 4 |
| RBF-065.00.00.00 | 65 | 215 | 215 | 15 | 2.0 | -0.08 | 200 | 22 | 180 | 18 | 4 |
| RBF-076.00.00.00 | 76 | 245 | 245 | 15 | 2.0 | -0.08 | 230 | 25 | 180 | 18 | 8 |
| RBF-102.00.00.00 | 102 | 320 | 320 | 15 | 2.0 | -0.08 | 300 | 30 | 210 | 18 | 8 |
| RBF-114.00.00.00 | 114 | 360 | 360 | 15 | 2.0 | -0.08 | 340 | 35 | 240 | 18 | 8 |
| RBF-133.00.00.00 | 133 | 420 | 420 | 15 | 2.0 | -0.08 | 400 | 42 | 250 | 22 | 8 |
| RBF-152.00.00.00 | 152 | 480 | 480 | 15 | 2.0 | -0.08 | 460 | 50 | 270 | 22 | 8 |
| RBF-159.00.00.00 | 159 | 500 | 500 | 15 | 2.0 | -0.08 | 480 | 55 | 275 | 22 | 8 |
| RBF-170.00.00.00 | 170 | 530 | 530 | 17 | 2.0 | -0.08 | 510 | 75 | 295 | 22 | 8 |
| RBF-200.00.00.00 | 200 | 620 | 620 | 17 | 2.0 | -0.08 | 600 | 100 | 325 | 22 | 8 |
| RBF-219.00.00.00 | 219 | 680 | 680 | 17 | 2.0 | -0.08 | 660 | 120 | 350 | 22 | 8 |
| RBF-245.00.00.00 | 245 | 765 | 765 | 17 | 2.0 | -0.08 | 740 | 150 | 375 | 22 | 12 |
| RBF-273.00.00.00 | 273 | 845 | 845 | 18 | 2.0 | -0.08 | 820 | 180 | 405 | 22 | 12 |
| RBF-300.00.00.00 | 300 | 925 | 925 | 18 | 2.0 | -0.08 | 900 | 200 | 450 | 22 | 12 |
| RBF-325.00.00.00 | 325 | 1000 | 1000 | 18 | 2.0 | -0.08 | 975 | 230 | 470 | 22 | 16 |
| RBF-351.00.00.00 | 351 | 1075 | 1075 | 18 | 2.0 | -0.08 | 1050 | 250 | 495 | 22 | 16 |
| RBF-377.00.00.00 | 377 | 1155 | 1155 | 18 | 2.0 | -0.08 | 1130 | 300 | 530 | 26 | 16 |
| RBF-402.00.00.00 | 402 | 1230 | 1230 | 18 | 2.0 | -0.08 | 1200 | 380 | 575 | 26 | 16 |
| RBF-426.00.00.00 | 426 | 1305 | 1310 | 18 | 2.0 | -0.08 | 1280 | 400 | 600 | 26 | 20 |
| RBF-457.00.00.00 | 457 | 1400 | 1400 | 18 | 2.0 | -0.08 | 1370 | 430 | 630 | 26 | 20 |
| RBF-508.00.00.00 | 508 | 1550 | 1550 | 20 | 2.0 | -0.08 | 1520 | 520 | 690 | 26 | 20 |
| RBF-530.00.00.00 | 530 | 1630 | 1630 | 25 | 2.0 | -0.08 | 1590 | 720 | 710 | 30 | 20 |
| RBF-610.00.00.00 | 610 | 1870 | 1870 | 30 | 2.0 | -0.08 | 1830 | 920 | 820 | 30 | 20 |
Products can be made to the customer's drawings and technical requirements, including larger diameters, based on the specific operating conditions.
Field of application
Smoothly changing the direction of hydraulic transport slurry at high-abrasion sections of a pipeline system.
- Mining and processing plants
- Slurry hydraulic transport
- Abrasive media