Product Overview
Reliable custom rubber parts for industrial applications
Quick Answer
This rubber ring gasket is an annular elastomer seal with a central opening for static sealing around pipes, valves, pumps, housings and equipment passages. OD, ID, thickness, cross-section, material, Shore A hardness, tolerance and packaging can be customized. EPDM, NBR, HNBR, FKM, Silicone, CR, NR and SBR compounds are available.
A rubber ring gasket is an annular elastomer seal with a central opening for static sealing around pipe, valve, pump, tank and equipment connections. It is installed between compatible mating surfaces and compressed by bolts or clamping force. Material, hardness, outer diameter, inner diameter, thickness and dimensional tolerance can be customized according to the drawing and application conditions.
Product Overview
The rubber ring gasket is a flat or molded circular sealing component designed to seal around a central passage. Unlike a solid disc gasket, a ring gasket has an inner diameter that matches the bore, pipe opening or equipment port. When compressed between two mating surfaces, the gasket helps reduce leakage by filling minor surface irregularities and maintaining sealing contact around the flow path. It can be used in pipe flanges, valve bodies, pump connections, covers, housings and machinery interfaces. Rubber material selection depends on the contact media, temperature, pressure, compression load and service environment. Buyers should provide OD, ID, thickness and application conditions for accurate material and dimensional review.
Key Features
- Annular rubber gasket with a central opening for static sealing around a bore or passage.
- Suitable for compatible pipe, valve, pump, tank, housing and machinery interfaces.
- Outer diameter, inner diameter, thickness and cross-section can be customized.
- Available as flat ring gaskets, molded ring seals or custom profile ring gaskets.
- Rubber material selection depends on water, oil, air, gas, chemical or outdoor exposure.
- Shore A hardness can be reviewed according to flange compression and sealing requirements.
- Die cutting, water-jet cutting or rubber molding can be selected according to geometry and quantity.
- Prototype samples, inspection requirements and custom packaging are available upon request.
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Rubber Ring Gasket |
| Material | EPDM, NBR, HNBR, FKM, Silicone, CR, NR, SBR or application-specific rubber compound |
| Hardness | Available upon request |
| Color | Black or custom color, depending on the selected compound |
| Manufacturing Process | Die cutting, water-jet cutting, compression molding or injection molding, depending on the gasket structure and quantity |
| Application | Static sealing around pipe, valve, pump, tank, cover, housing and equipment passages |
| Customization | Outer diameter, inner diameter, thickness, cross-section, material, Shore A hardness, dimensional tolerance, surface finish, packaging and inspection requirements can be reviewed according to the drawing and application conditions. |
| MOQ | Contact us for details |
| Tooling | Tooling cost depends on the drawing and product structure |
| Sample Availability | Available upon request |
| Lead Time | Available upon request |
| Compliance Options | RoHS, REACH, FDA and other material documentation options are available upon request for applicable compounds. |
Applications
Rubber ring gaskets are used where a circular seal is required around a pipe bore, valve opening, pump port, cover hole or equipment passage. Typical applications include water pipelines, hydraulic equipment, pneumatic systems, industrial valves, pump housings, filter covers, tanks, HVAC connections and general machinery. A ring gasket can seal around the central opening while leaving the outer flange or housing structure free for bolts, clamps or other fastening methods. The final gasket design should match the mating-surface condition, compression method, contact media, pressure level and operating temperature. Chemical compatibility should be confirmed before material selection.
Customization Options
Custom rubber ring gaskets can be manufactured according to 2D drawings, CAD files, dimensional sketches, flange standards or physical samples. Buyers can specify OD, ID, thickness, cross-section, rubber material, Shore A hardness, color, surface finish, tolerance, inspection method and packaging. Flat ring gaskets can often be produced by die cutting or water-jet cutting. Molded ring gaskets can be reviewed when a controlled profile, tighter edge quality, sealing lip, groove fit or higher-volume production is required. Please provide contact media, temperature range, pressure, compression load and estimated annual quantity for technical review.
What Information Should Buyers Provide for a Quote?
- Product drawing or physical sample
- Outer diameter
- Inner diameter
- Thickness
- Cross-section or profile requirement
- Dimensions and tolerances
- Rubber material
- Shore A hardness
- Operating temperature
- Operating pressure
- Contact media
- Application environment
- Required quantity
- Estimated annual volume
- Compliance requirements
- Packaging requirements
FAQ
What is a rubber ring gasket used for?
A rubber ring gasket is used for static sealing around a central opening, pipe bore or equipment passage. It is commonly installed between flat or grooved mating surfaces and compressed by bolts, clamps or housing pressure to help reduce leakage.
What is the difference between a rubber ring gasket and a solid rubber disc gasket?
A rubber ring gasket has a center opening and seals around a bore or passage. A solid rubber disc gasket has no center hole and covers the full face. The correct option depends on whether the application needs annular sealing or complete surface blanking.
How should buyers select the rubber material?
Material selection depends on the contact media, temperature, pressure and environment. EPDM can be reviewed for water and outdoor use. NBR is suitable for petroleum-based oils. FKM can be evaluated for demanding chemicals and heat. Silicone is useful where broad temperature flexibility is required.
Can the OD, ID and thickness be customized?
Yes. Outer diameter, inner diameter, thickness, cross-section, tolerance and surface finish can be customized according to a drawing, CAD file or physical sample. Buyers should confirm the mating-surface design and compression requirements before production.
Which manufacturing process is suitable for rubber ring gaskets?
Flat ring gaskets are often produced by die cutting or water-jet cutting from rubber sheet. Molded ring gaskets are suitable when a custom cross-section, sealing lip, groove-fit geometry or higher-volume production requirement is needed. The process depends on design and quantity.
Are samples available before bulk production?
Samples are available upon request. Sample planning depends on the material, dimensions, hardness, tolerance, tooling requirements and quantity. Please provide a drawing, sample or complete OD × ID × thickness specification for review before batch production.
Request a Custom Quote
Send your rubber ring gasket drawing, CAD file, dimensional sketch or physical sample for technical review. Please include OD, ID, thickness, material, hardness, contact media, operating temperature, pressure, tolerance, required quantity and estimated annual demand so we can prepare a practical quotation.
