

Features mechanical seal unitex
- Single cartridge seal
- Elastomer bellows
- Unbalanced
- Independent of direction of rotation
- Rotating spring
- Bellows and spring free from torsion
- Metric and inch sizes available
Advantages mechanical seal unitex
- Straightforward and easy installation
- Fits into any installation space due to smallest outer diameter
- Important material certifications available
- Universal application opportunities (standardization)
- No modifications of the pump’s installation chamber necessary
- Economical cartridge solution
- Comes with flush connection acc. to API 682, Plan 11 for seal chamber cleaning and cooling

Operating range mechanical seal unitex
- Shaft diameter:
dN = 25 … 75 mm (1″ … 2.625″) - Pressure: p1 = 12 bar (174 PSI)
- Temperature:
t = -20 °C … 140 °C (-4 °F … 284 °F) - Sliding velocity: vg = 10 m/s (33 ft/s)
- Axial movement: ±0.5 mm
Materials mechanical seal unitex
- Seal face: Carbon graphite resin impregnated (B), Silicon carbide (Q1)
- Seat: Silicon carbide (Q1)
- Secondary seals: FKM (V), EPDM (E)
- Metal parts: CrNiMo steel (G), CrNiMo cast steel (G)
Item | Description |
1 | Bellows unit |
1.1 | Seal face |
1.2 | Bellows |
1.3 | Drive collar |
1.4 | L-ring (spring collar) |
2 | Spring |
3 | Seat (G60) |
4 | O-Ring or corner sleeve |
5 | Spacer ring |
6 | Shaft sleeve |
7 | O-ring |
8 | Cover |
9 | Gasket |
10 | Drive collar |
11 | Set screw |
12 | Snap ring |
13 | Assembly fixture |
14 | Socket head screw |
15 | Screw plug |
Recommended applications seal unitex
- Chemical industry
- Pulp and paper industry
- Water and waste water technology
- Sewage water
- Cold and hot water
- Cooling fluids
- Beverages
- Diluted lyes and acids
- Suspensions with low solids content
- Circulating pumps
- Water and waste water pumps
- Production of pressure oils for bio diesel fuels