Hachiken, Japan
Hachiken FR Reducer
Made in Japan
Manufacturer : Hachiken
Model : FR
A rubber joint for absorbing vibration and displacement that connects pipes with different diameters.
Feature
- A joint for pipes with different diameters, which was difficult with rubber.
Usage
- Chemical plant
- Flue gas desulfurization plant
- Sewage treatment plant
- Pump/blower piping
- Ship piping
- General factory equipment piping
Standard specifications
- Maximum operating temperature : -10 to 60°C
- Maximum working pressure : -50kPa to 0.50MPa
- Flange standard : JIS 10K
- Inner rubber material : EPDM
Structure and material
| Part number | Name | Material |
| 1 | Inner rubber | EPDM |
| 2 | Reinforcing layer | Synthetic fiber |
| 3 | Reinforcing wire | Steel wire |
| 4 | Reinforcing layer | Synthetic fiber |
| 5 | External rubber | EPDM |
| 6 | Flange | SS※ |
*Hot-dip galvanized flanges are standard.
Dimensions and performance table
| Nominal diameter | A. | B. | L. | Mass kg |
| 20A x 25A | 19 | 25 | 200 | 2.5 |
| 20A x 40A | 19 | 38 | 200 | 3.0 |
| 25A x 40A | 25 | 38 | 200 | 3.0 |
| 25A x 50A | 25 | 51 | 200 | 3.5 |
| 40A x 50A | 38 | 51 | 200 | 4.5 |
| 40A x 65A | 38 | 64 | 200 | 5.0 |
| 50A x 65A | 51 | 64 | 200 | 6.0 |
| 50A x 80A | 51 | 76 | 200 | 6.5 |
| 80A x 100A | 76 | 102 | 250 | 7.5 |
| 80A x 125A | 76 | 127 | 250 | 9.0 |
| 100A x 125A | 102 | 127 | 300 | 11 |
| 100A x 150A | 102 | 152 | 300 | 13 |
| 150A x 200A | 152 | 203 | 350 | 18 |
| 150A x 250A | 152 | 254 | 400 | 25 |
| 200A x 250A | 203 | 254 | 400 | 30 |
| 200A x 300A | 203 | 305 | 400 | 33 |
| 250A x 300A | 254 | 305 | 450 | 37 |
| 250A x 350A | 254 | 350 | 450 | 42 |
※1. Please contact us for the combination of diameters.
※2. Weight is a guideline.
※3. The inside diameter of the mouth of 25A or less is R-processed.
Option
| Standard | Option | |
| Flange standard | JIS 10K | Tap water F12, JIS 5K, JPI class 150, etc. |
| Flange material | SS plating | SUS304, SUS316, etc. |
| Inner rubber material | EPDM | CR, NBR, NR, wear resistant |
<Remarks/Precautions>
- If the fluid is gas, the maximum working pressure will be 1/2 of the above value.
- Please contact us for non-standard specifications (diameter, length, etc.).
- Due to the manufacturing method, the plating on the flange may be discolored or mottled, but this does not affect performance.
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