Hachiken, Japan
Hachiken FG Global Joint
Made in Japan
Manufacturer : Hachiken
Model : FG
Standard spherical flexible joint for anti-vibration joints around pumps. A large anti-vibration effect can be obtained in spite of the short face-to-face dimension.
Feature
- The main body is spherical, so it is stable against internal pressure, and it can withstand negative pressure, so it can be used for both delivery and suction.
- Due to its spherical shape, dimensional change during pressurization is extremely small compared to other types of joints.
Usage
- Building equipment piping
- HVAC plumbing
- Ship piping
- General factory equipment piping
Structure and material
| Part number | Name | Material |
| 1 | Inner rubber | EPDM |
| 2 | Reinforcing layer | Synthetic fiber |
| 3 | External rubber | synthetic rubber |
| 4 | Reinforcing wire | Steel wire |
| 5 | Fange | SS※ |
*The standard flange is electrogalvanized.
Dimensions and performance table
| Nominal diameter | A. | L. | Maximum working pressure | Standard maximum displacement | Mass kg | |||
| Internal pressure MPa | Negative pressure kPa | Shrinkage | Stretch | Eccentricity | ||||
| 20A | 20 | 97 | 1.00 | -90 | 2 | 2 | 5 | 1.4 |
| 25A | 25 | 97 | 1.00 | -90 | 2 | 2 | 5 | 2.2 |
| 32A | 34 | 96 | 1.00 | -90 | 2 | 2 | 5 | 2.8 |
| 40A | 34 | 96 | 1.00 | -90 | 2 | 2 | 5 | 3.0 |
| 50A | 48 | 106 | 1.00 | -90 | 2 | 2 | 6 | 3.7 |
| 65A | 61 | 116 | 1.00 | -90 | 2 | 2 | 6 | 4.8 |
| 80A | 68 | 133 | 1.00 | -90 | 3 | 3 | 6 | 5.1 |
| 100A | 97 | 136 | 1.00 | -90 | 3 | 3 | 10 | 5.8 |
| 125A | 122 | 175 | 1.00 | -90 | 3 | 3 | 10 | 9.1 |
| 150A | 140 | 185 | 1.00 | -90 | 3 | 3 | 14 | 13 |
| 200A | 188 | 209 | 1.00 | -90 | 3 | 3 | 16 | 16 |
| 250A | 241 | 237 | 0.75 | -90 | 3 | 3 | 16 | 24 |
| 300A | 290 | 264 | 0.75 | -50 | 4 | 4 | 16 | 28 |
| 350A | 320 | 264 | 0.75 | -50 | 4 | 4 | 16 | 33 |
※1. Each displacement amount is the value when each is displaced independently.
※2. Weight is a guideline.
Option
| Standard | Option | |
| Flange standard | JIS 10K | Clean water F12, JIS 5K (25A or more) |
| Flange material | SS plating | SUS304/SUS316 |
| Inner rubber material | EPDM | CR/NBR |
*For JIS5K, please inquire separately as the flange dimensions are partly different from the standard.
<Remarks/Precautions>
- Insert the mounting bolt from the rubber joint side.
- Make sure that the mounting bolt does not touch the rubber joint body.
- As this is a mold product, we cannot manufacture non-standard dimensions.
