Datasheet · ISPL 2412
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Pump seals
ISPL 2412 Rubber Bellows Seal
ISPL 2412 is an unbalanced single-spring seal with flexible synthetic rubber bellows, mounted inside. Easy to install and economical, it takes up shaft run-out and comes in several types, including a balanced version.
- Type
- Single, unbalanced
- Rotation
- LH/RH
- Shaft size
- 20–100 mm0.79–3.94 in
- Pressure
- up to 7 kg/cm²≤ 7 kg/cm²up to 100 psi≤ 100 psi
- Temperature
- up to 100 °C≤ 100 °Cup to 212 °F≤ 212 °F
- Bellows
- Synthetic rubber

Datasheet
Specifications
| Parameter | Limit | Unit | Copy |
|---|---|---|---|
| Shaft diameter | 20–1000.79–3.94 mmin | mmin | |
| Pressure | up to 7≤ 7up to 100≤ 100 kg/cm²psi | kg/cm²psi | |
| Temperature | up to 100≤ 100up to 212≤ 212 °C°F | °C°F | |
| Surface speed | up to [0.0]≤ [0.0] m/sft/s | m/sft/s | |
| Pressure, balanced-ring version | ≤ 1,000 psi (about 69 bar) | – | |
| Rotation | LH/RH | – |
| Part | Options | Copy |
|---|---|---|
| 1 · Seal faces | [Face combinations] | |
| 2 · Springs | [Grade] | |
| 3 · Secondary seals | Synthetic rubber bellows | |
| 4 · Gland plate | [Grade] | |
| 5 · Sleeve and other metal partsSleeve, metal parts | [Grades] |
Applications
Where it's used
Industries
- Sugar plants
- Refrigeration
Equipment
- Cold water pumps
- Centrifugal, plastic immersion and vortex vacuum pumps
- Gearboxes for cane carriers, rake carriers, bagasse elevators and crystallisers
- Ammonia and Freon refrigeration compressors
Cold water pumps, centrifugal, plastic immersion and vortex vacuum pumps, gearboxes for cane carriers, rake carriers, bagasse elevators and crystallisers and ammonia and Freon refrigeration compressors.
Design
Design features
-
Rubber bellows
Self-aligning bellows take up shaft run-out.
-
Economical
Easy to install and low in cost.
-
Many types
Open, MG-1, Crane, closed, Robin, MG-12 and J-1.
-
Balanced option
A balanced ring for up to 1,000 psi.
Files
Downloads
Datasheets open without a form. Drawings are sent on request.
FAQ
Questions buyers ask
Is there a version for higher pressure?
Yes. A balanced-ring version handles up to 1,000 psi (about 69 bar).
What do you need from me to quote?
Shaft size, speed, temperature, pressure and the fluid. A photo of the old seal or its nameplate helps.
How long does delivery take?
After order confirmation: 2 days from stock, 2 weeks for a new seal.
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