Pump Seals - Auxiliary Machinery and Engine Room
Pump seals prevent leakage where rotating shafts pass through pump casings in marine engine-room and auxiliary systems. Common forms include mechanical seals, cartridge seals, elastomer bellows seals and packed-gland arrangements selected for the pumped fluid and operating conditions.
ProShipWorks provides end-to-end support to source and supply Pump Seals for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.
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Product Information
| Product Name | Pump Seals |
|---|---|
| Product Category | Auxiliary Machinery and Engine Room |
| Product Reference | 39 |
| Brands / Manufacturers | John Crane, EagleBurgmann, AESSEAL |
| Unit of Measure | Piece or Set |
Key Features
| Key Feature |
|---|
| 1. Controls leakage around rotating pump shafts |
| 2. Available as single, double and cartridge mechanical-seal arrangements |
| 3. Faces commonly use carbon, silicon carbide or tungsten carbide |
| 4. Elastomers are selected for compatibility with water, fuel, oil or chemicals |
| 5. Marine-grade metallic components provide corrosion resistance |
Applications of Pump Seals
| Application |
|---|
| 1. Sea-water, fresh-water and cooling-water pumps |
| 2. Bilge, ballast, fire and general-service pumps |
| 3. Fuel-oil, lubricating-oil and boiler-feed auxiliary pumps |
Models & Manufacturers
| Model | Manufacturer |
|---|---|
| Type 21 | John Crane |
| M3N | EagleBurgmann |
| CURC | AESSEAL |
Technical Specifications
| Model | Specification | Value | Unit |
|---|---|---|---|
| Type 21 | Seal design | Single-spring elastomer bellows mechanical seal | — |
| Type 21 | Nominal shaft diameter range | 0.375-3.000 | in |
| M3N | Seal design | Conical-spring mechanical seal | — |
| M3N | Nominal shaft diameter range | 6-100 | mm |
| M3N | Maximum sliding velocity | 10 | m/s |
| CURC | Seal design | Single balanced cartridge mechanical seal | — |
Standards, Certifications & Class Approval
Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.
| Applicable Standards & Certification | Common dimensional and design references include EN 12756 and ISO 3069. API 682 and ISO 21049 apply to specified centrifugal-pump sealing systems, particularly hydrocarbon service. Material certificates and pressure-test documentation may be required by the vessel specification. |
|---|---|
| Class Approval | Acceptance may be required from DNV, ABS, Lloyd's Register, Bureau Veritas or ClassNK as part of the pump, piping system or vessel approval. Individual replacement seals are not automatically class-approved; equivalence, material compatibility and manufacturer documentation should be verified. |
Installation, Maintenance & Safety Information
| Installation Notes | Confirm pump model, shaft and housing dimensions, rotation, pressure, temperature and fluid compatibility. Inspect shaft sleeves and seal chambers, install clean components without damaging faces or elastomers, set cartridge clips correctly, align the pump and vent or prime it before starting. |
|---|---|
| Maintenance Tips | Check regularly for leakage, abnormal temperature, vibration and dry-running damage. Keep seal-flush passages clear, maintain bearings and alignment, and replace worn faces, sleeves, springs and elastomers with compatible parts. Record operating hours and leakage trends. |
| Safety Notes | Isolate, depressurize, drain and lock out the pump before work. Treat hot, pressurized, flammable or toxic fluids according to the vessel safety procedures. Never run a wet mechanical seal dry, and use appropriate personal protective equipment. |
Request a Quote for Pump Seals
Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.
- Vessel name and IMO number
- ETA / vessel schedule
- Berth or vessel location
- Required quantity
- Preferred delivery window
- Shipping agent contact details
Other Auxiliary Machinery and Engine Room Products
Explore our range of marine and industrial Auxiliary Machinery and Engine Room products available for sourcing and supply through ProShipWorks.
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