Decriptions:
The series of tetrafluoroethylene bellows, multi-spring structure, WB2 type of spring is protected by the PTFE cover. Mechanical seal of this type is the most widely used corrosion resistant pumps in one.
PTFE bellows mechanical shaft seals are suitable for corrosive and aggressive media, which are outside mounted with no metal parts in contact with the medium. Stationary seat is Clamp or L-Shape.
1. Common Combined Materials:
Stationary ring: SiC or Ceramic
Rotary ring: Sic or PTFE/Fiberglas(Carbon-graphite)
Secondary seal: PTFE
Others: SS304 or SS316
2. Operating conditions:
Temperature: ≤120°C
Pressure: ≤0.5MPa
Speed: ≤10m/s
| Metric Size | D3 | D2 | D1 | L2 | L1 | L11 | Inch Size | D3 | L2 | L1 | L11 |
| 25 | 60 | 60 | 47 | 27 | 42 | 45 | 25.40 | 60 | 17.50 | 42 | 45 |
| 30 | 67 | 67 | 53 | 27 | 42 | 45 | 28.60 | 67 | 27.00 | 42 | 45 |
| 32 | 69 | 64 | 50.7 | 27 | 42 | 45 | 31.75 | 69 | 27.00 | 42 | 45 |
| 35 | 72 | 70 | 57 | 27 | 42 | 45 | 34.93 | 72 | 27.00 | 42 | 45 |
| 40 | 78 | 76 | 62 | 26 | 42 | 45 | 38.10 | 76 | 27.00 | 42 | 45 |
| 45 | 84 | 82 | 67 | 27 | 44 | 46 | 41.28 | 80 | 27.00 | 42 | 45 |
| 50 | 88 | 86 | 72 | 27 | 46 | 46 | 44.45 | 84 | 27.00 | 44 | 46 |
| 55 | 95 | 90 | 77 | 27 | 46 | 46 | 47.63 | 86 | 27.00 | 44 | 46 |
| 60 | 100 | 95 | 82 | 27 | 46 | 46 | 50.80 | 90 | 27.00 | 46 | 46 |
| 65 | 105 | 100 | 87 | 27 | 46 | 46 | 53.98 | 95 | 33.50 | 46 | 46 |
| 57.15 | 98 | 33.50 | 46 | 46 | |||||||
| 60.30 | 100 | 33.50 | 46 | 46 |
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