O-Ring
O rings are among the most widely used sealing elements in industry and are especially common in static sealing applications. Their circular cross-section creates a sealing effect by deformation and compression within the gland, helping to prevent leakage of liquid or gaseous media between mating parts.
O rings are valued for their compact design, cost-effectiveness, broad material availability, and suitability across a wide range of industrial applications.
3D Seals provides a huge range of high quality Standard O-Rings in various Elastomers, such as, NBR, FPM, EPDM and MVQ for the OEM market. We also offer the O-Ring kit for maintenance, in varying sizes. 3D Seals’ O-Ring selection is available in most commonly used sizes for valves, pumps and fittings.
O-Ring Profiles
- Technical Specification
- Material Details
- Applications
| Parameter | Details |
|---|---|
| Types | Standard, backup ring assemblies, and custom profiles |
| Operating pressure | Up to 400 bar (application dependent) |
| Operating temperature | -60°C to +250°C (material dependent) |
| Sizes | Standard AS568, ISO, and custom dimensions |
| Installation | Internal and external groove designs |
| Parameter | Details |
|---|---|
| NBR (Nitrile Rubber) | Excellent resistance to oils and hydraulic fluids |
| HNBR | Enhanced durability and temperature resistance |
| FKM (Fluoroelastomer) | Superior chemical and high-temperature resistance |
| EPDM | Ideal for water, steam, and outdoor applications |
| Static sealing in flanges, end caps, covers, and connectors. | |
| Hydraulic and pneumatic systems. | |
| Pumps, valves, fittings, and manifolds. | |
| General industrial machinery requiring compact and reliable sealing. |
Frequently Asked Questions
An O ring is a circular cross-section sealing element that creates a seal through compression after installation.
Yes, O rings are primarily used for static sealing of liquids and gases, though some dynamic use is possible under suitable conditions.
O rings are commonly made from elastomer materials, and in some applications PTFE-based variants are also used.
They are simple, compact, widely available, and effective when the groove and material are selected correctly.
