ProductPRODUCTS 
Single Sphere Rubber Bellows (WRAS) KF-9400
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Product Feature
The rubber joint can greatly reduce pipeline system vibration and noise, can solve the problem of joint displacement, axial expansion, etc.
According to different materials, it can be made into many kinds, adapt to many mediums and different environment.
Good sealing rubber, light weight, easy installation, long service life, and avoid contacting with sharp metal device.
If use overhead, can match with elastic support.
If pipeline pressure is high, should use bolt connect the flange both ends.
It can be used for drinking water pipelines.
Technical Parameters
Nominal diameter(mm) | 32～300 | 32～300 | ||
Nominal pressure(Mpa) | 1.0 | 1.6 | ||
Testing pressure | Seal(Mpa) | 1.1 | 1.76 | |
Suitable temperature（°C） | -20°C～120°C | |||
Suitable medium | Drinking water and food | |||
Main Raw Material
Flange | WCB Cold/Hot Galvanizing | |||
Joint | EPDM/NBR | |||
Reference Standard
Testing standard | API 598 | |||
End flange standard | DIN PN10 / PN16、ANSI 125# / 150#、BS4504 PN10 / PN16 | |||
Overall Dimension and Weight
Size | ΦD1 | ΦD2 | N-Φd | D | d | Weight（kg） |
DN32 | 140 | 100 | 4-18 | 125 | 14 | 3.35 |
DN40 | 150 | 110 | 4-18 | 125 | 14 | 4.05 |
DN50 | 165 | 125 | 4-18 | 125 | 18 | 5.5 |
DN65 | 185 | 145 | 4-18 | 125 | 18 | 6.7 |
DN80 | 200 | 160 | 8-18 | 125 | 20 | 7.7 |
DN100 | 220 | 180 | 8-18 | 125 | 20 | 9.4 |
DN125 | 250 | 210 | 8-18 | 125 | 22 | 12.7 |
DN150 | 285 | 240 | 8-22 | 125 | 22 | 15.8 |
DN200 | 340 | 295 | 12-23 | 210 | 24 | 20 |
DN250 | 405 | 355 | 12-28 | 230 | 26 | 26 |
DN300 | 460 | 410 | 12-28 | 245 | 28 | 36 |
