
Single spring pusher seals
Single Coil Spring Unbalanced Seal
- Shaft10 to 100 mm
- Pressure10 bar (max)
- Temperature−20 to 150 °C
The Single Coil Spring Unbalanced Mechanical Seal is a rugged, cost-effective sealing solution designed for low-to-medium pressure applications. Featuring a thick, heavy-duty single coil spring, this pusher-type seal resists clogging and easily accommodates shaft misalignment, making it highly reliable in harsh, dirty environments.
Generally used in
Refineries, fertilizer plants, nuclear plants and petroleum pipelines.
| Seal faces | Carbon / TC / SiC vs Ceramic / SiC |
|---|---|
| Secondary seals | Viton / PTFE / GFT / PTV / EPDM / NBR |
| Metal parts | SS-316, SS-304, 904L, Alloy 20, Hastelloy |
| Shaft diameter | 10 to 100 mm |
|---|---|
| Pressure | 10 bar (max) |
| Temperature | −20 to 150 °C |
| Speed | 2900 rpm (max) |
Custom sizes and material combinations are made to your drawing. Confirm duty conditions with us before ordering.
Related seals
-
Single spring pusher seals
Conical Spring Seal
Compact pusher seal
- Shaft
- 10 to 100 mm
- Pressure
- 7 bar
- Temp
- −20 to 140 °C
-
Single spring pusher seals
Single Coil Spring Balanced Seal
High pressure, low face wear
- Shaft
- 10 to 100 mm
- Pressure
- 10 bar (max)
- Temp
- −20 to 150 °C
-
Multi spring & wave spring seals
Multi Spring Reversed Balance Seal
Externally mounted
- Shaft
- 10 to 100 mm
- Pressure
- 10 bar (max)
- Temp
- −50 to 200 °C


