O Rings - Engine Room Consumables and Spares
O-rings are elastomeric sealing rings used extensively in marine engine rooms to prevent leakage between stationary or lightly moving mating surfaces. They are fitted in engines, pumps, valves, hydraulic systems, pipe couplings, and fuel or cooling-water equipment.
ProShipWorks provides end-to-end support to source and supply O Rings for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.
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Product Information
| Product Name | O Rings |
|---|---|
| Product Category | Engine Room Consumables and Spares |
| Product Reference | 1403 |
| Brands / Manufacturers | Parker Hannifin, Trelleborg Sealing Solutions, Freudenberg Sealing Technologies |
| Unit of Measure | Piece |
Key Features
| Key Feature |
|---|
| 1. Circular elastomeric sealing profile |
| 2. Available in NBR, FKM, EPDM, silicone and other compounds |
| 3. Suitable for static and selected dynamic sealing duties |
| 4. Available in metric and inch sizes |
| 5. Resistant to pressure, temperature, oils or water depending on compound |
Applications of O Rings
| Application |
|---|
| 1. Marine engine fuel, lubricating-oil and cooling-water systems |
| 2. Hydraulic pumps, valves, actuators and pipe couplings |
| 3. Air compressors, seawater pumps and auxiliary machinery |
Models & Manufacturers
| Model | Manufacturer |
|---|---|
| Parker O-Ring Standard Series | Parker Hannifin |
| Trelleborg O-Ring Sealing Solutions | Trelleborg Sealing Solutions |
| Freudenberg O-Ring Seals | Freudenberg Sealing Technologies |
Technical Specifications
| Model | Specification | Value | Unit |
|---|---|---|---|
| Standard O-ring | Common material | NBR | — |
| Standard O-ring | Alternative material | FKM, EPDM or silicone, selected for media and temperature | — |
| Standard O-ring | Size standard | ISO 3601 or AS568 | — |
| Standard O-ring | Typical hardness | 70 or 90 | Shore A |
| Standard O-ring | Cross-section | Application-dependent metric or inch size | — |
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 standards include ISO 3601, AS568 and DIN ISO 3601. Material compatibility, temperature rating and any fluid approvals must be confirmed from the manufacturer's datasheet. Certification is not universal for all O-rings. |
|---|---|
| Class Approval | O-rings generally do not have universal standalone type approval. Class acceptance depends on the application and approved machinery design; DNV, ABS, Lloyd's Register, BV and ClassNK requirements may apply to the complete equipment or system. |
Installation, Maintenance & Safety Information
| Installation Notes | Verify the exact size, compound, hardness and equipment drawing before installation. Clean the groove and mating surfaces, remove burrs, lubricate with a compatible medium, and avoid twisting, stretching beyond limits or cutting the ring during assembly. |
|---|---|
| Maintenance Tips | Inspect for flattening, cracks, extrusion, hardening, swelling and leakage during scheduled maintenance. Replace seals after dismantling where specified by the equipment maker, and store unused O-rings sealed, cool, dry, dark and away from ozone, heat and oils. |
| Safety Notes | Depressurize, drain and isolate the system before replacement. Confirm chemical and temperature compatibility, especially for fuel, hydraulic oil, steam and seawater. Do not substitute materials or sizes without manufacturer approval, and use appropriate gloves and eye protection. |
Request a Quote for O Rings
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 Engine Room Consumables and Spares Products
Explore our range of marine and industrial Engine Room Consumables and Spares products available for sourcing and supply through ProShipWorks.
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