Mechanical seal H-brinker
HBA290 HBA291
Operating range Mechanical seal HBA290 HBA291
MA290:
Pressure: p = … 20 bar (290 PSI)
Temperature: t = -20 °C …160 °C (-4 °F … 320 °F) (oil), 0 °C … 60 °C (32 °F … 140 °F) (water)
Sliding velocity: vg = max. 20 m/s (66 ft/s) Viscosity: 0.5 Pa·s
Solids content: 0.3 %
MA291:
Pressure: p = … 16 bar (232 PSI)
Temperature: t = -20 °C …160 °C (-4 °F … 320 °F) (oil), 0 °C … 60 °C (32 °F … 140 °F) (water)
Sliding velocity: vg = max. 20 m/s (66 ft/s)
Viscosity: 3 Pa·s
Solids content: 10 %
Table of Mechanical seal descriptions HBA290 HBA291
| Item | Description |
| 1 | Seal face |
| 2, 5, 7 | O-Ring |
| 3 | Spring |
| 4 | Seat |
| 6 | Drive collar |
| 8 | Set screw |
| 9 | Seal cover |
| 10 | Gasket |
| 11 | Assembly fixture |
| 12 | HSH cap screw |
Features Seal HBA290 HBA291
- Cartridge
- Balanced
- Independent of direction of rotation
- Stationary multiple springs
- Springs and pin located on the atmospheric side
Advantages mechanical seal HBA290 HBA291
- Extremely short length design –
the total length including the seal cover is less than 50 mm - Easy installing on the pumps without modifying the stuffing box
- Excellent followability due to no influence from run-out, squareness or vibration of the shaft
- Mounted outside the stuffing box for providing excellent air cooling performance
- Un-wetted springs and knock pins for protecting from lockout by liquid
Materials Seal HBA290 HBA291
- Seal face (MA290): High density carbon graphite
- Seal face (MA291): Silicon carbide (Q1)
- Seat (MA290/291): Silicon carbide (Q1)
- Metal parts: CrNiMo steel (G)
- Secondary seals: FKM (V)
Recommended applications seal HBA290 HBA291
- Petrochemical industry
- Chemical industry
- Pharmaceutical industry
- Pulp and paper industry
- Water and waste water technology
- Food and beverage industry
- Universally applicable
- Centrifugal pumps
- Eccentric screw pumps
- Process pumps
Dimension Table Seal HBA290 HBA291
| d | d1 min. | d1 max. | d2 | d3 | l1 | l2 | l3 | l4 |
|---|---|---|---|---|---|---|---|---|
| 20 | 30 | 51 | 58 | 104 | 42 | 18 | 60 | 12 |
| 25 | 35 | 51 | 58 | 104 | 42 | 18 | 60 | 12 |
| 30 | 40 | 56 | 63 | 108 | 42 | 18 | 65 | 12 |
| 35 | 45 | 66 | 73 | 118 | 42 | 16 | 75 | 14 |
| 40 | 50 | 66 | 73 | 118 | 42 | 16 | 75 | 14 |
| 45 | 55 | 71 | 78 | 128 | 42 | 16 | 80 | 14 |
| 50 | 60 | 81 | 88 | 138 | 44 | 16 | 90 | 14 |
| 55 | 65 | 81 | 88 | 138 | 44 | 16 | 90 | 14 |
| 60 | 70 | 96 | 103 | 164 | 46 | 14 | 105 | 18 |
| 65 | 75 | 96 | 103 | 164 | 46 | 14 | 105 | 18 |
| 70 | 80 | 102 | 109 | 178 | 46 | 14 | 111 | 18 |
| 75 | 85 | 114 | 121 | 193 | 49 | 14 | 123 | 18 |
| 80 | 90 | 114 | 121 | 193 | 49 | 14 | 123 | 18 |
| 85 | 95 | 124 | 131 | 208 | 49 | 13 | 133 | 20 |
| 90 | 100 | 124 | 131 | 208 | 49 | 13 | 133 | 20 |
| 95 | 105 | 134 | 141 | 218 | 49 | 13 | 143 | 20 |
| 100 | 110 | 134 | 141 | 218 | 49 | 13 | 143 | 20 |