R (Oval) Ring Gasket
| Standard Materials | Exotic Materials | Coating & Plating Options |
|---|---|---|
| Low Carbon Steel | Stainless Steel | White Zinc |
| SS316 | Duplex Stainless Steel | Yellow Zinc |
| Soft Iron | Inconel | PTFE |
| Monel | Cadmium | |
| Titanium | Silver | |
| Xylan | ||
| Rubber Coating |
The R Oval Ring Gasket is a precision‑machined metallic sealing solution designed for high‑pressure and high‑temperature Ring Type Joint (RTJ) flange connections. Manufactured in accordance with API 6A and ASME B16.20 standards, these gaskets deliver reliable metal‑to‑metal sealing performance in critical industrial applications.
The oval cross‑section is the original RTJ profile and is engineered to seat properly in standard R‑type ring grooves. Its geometry allows effective plastic deformation under bolt load, creating a tight and dependable seal in demanding operating environments where leakage prevention is essential.
Widely used as a wellhead ring gasket, the R Oval Ring Gasket is commonly installed in wellhead equipment, valves, pressure vessels, and pipeline systems across the oil and gas, petrochemical, refining, and process industries. Available in multiple material grades, these gaskets can be selected to meet specific service conditions, media compatibility requirements, and pressure ratings.
Gaskets Enquiry Form
An R Oval Ring Gasket is a solid metal Ring Joint Gasket featuring an oval cross-sectional profile that fits precisely into RTJ flange grooves. When the flange bolts are tightened, the gasket deforms slightly, creating a high-integrity metal-to-metal seal capable of withstanding extreme internal pressures and elevated temperatures.
This sealing mechanism is specifically engineered for critical service pipelines, pressure vessels, valves, wellheads, and production equipment where conventional soft gaskets cannot provide sufficient sealing reliability. The oval profile accommodates slight flange imperfections while maintaining uniform sealing stress throughout the contact surface.
Manufactured using precision machining processes and strict dimensional tolerances, these High Pressure Ring Gasket solutions are commonly produced in accordance with API 6A, ASME B16.20, applicable ASTM material specifications, and quality management systems compliant with ISO 9001.
- Precision-machined metal sealing surface for reliable leak prevention
- Suitable for high-pressure and high-temperature applications
- Designed for RTJ flange systems
- Manufactured to API and ASME dimensional standards
- Excellent resistance to pressure cycling
- High mechanical strength and structural integrity
- Compatible with corrosive process environments using appropriate materials
- Available in multiple pressure classes and ring numbers
- Excellent dimensional accuracy for consistent installation
- Suitable for new installations, maintenance shutdowns, and plant turnarounds
Material Options
Material selection depends on operating pressure, process media, temperature, corrosion resistance, and flange material compatibility.
Soft Iron
Commonly used for carbon steel flanges in standard oil and gas applications where excellent seating characteristics are required.
Carbon Steel
Suitable for general industrial services operating under controlled process conditions.
Stainless Steel (304, 316, 316L)
Provides improved corrosion resistance for petrochemical plants, offshore facilities, chemical processing, and marine environments.
Duplex Stainless Steel
Offers enhanced strength and resistance to chloride-induced corrosion, making it suitable for aggressive offshore applications.
Inconel
Ideal for high-temperature service and aggressive chemical environments requiring superior oxidation resistance.
Monel
Widely selected for seawater service, marine applications, and hydrofluoric acid environments.
Other alloy materials can be manufactured to meet specific project specifications and international standards.
Applications
Oil and Gas Production
Used in wellheads, Christmas trees, drilling equipment, production manifolds, and pipeline systems where high-pressure sealing is essential.
Refineries
Provides dependable sealing for process piping, pressure vessels, reactors, and hydrocarbon processing equipment operating under severe conditions.
Petrochemical Plants
Suitable for handling high-pressure process fluids, steam, hydrocarbons, and chemical media.
Offshore Platforms
Designed to withstand demanding offshore environments with excellent mechanical strength and corrosion-resistant material options.
Power Generation
Used in high-pressure steam systems, boilers, turbines, and auxiliary piping requiring dependable metal sealing.
LNG and Gas Processing
Supports reliable sealing performance in gas compression, transmission, and cryogenic processing systems when specified with suitable materials.
Chemical Processing
Applicable for aggressive process media requiring specialized alloy materials and high sealing integrity.
Frequently asked questions
An R Oval Ring Gasket is a solid metal Ring Joint Gasket with an oval cross section designed for RTJ flanges operating under high-pressure and high-temperature conditions.
These gaskets are commonly manufactured according to API 6A, ASME B16.20, relevant ASTM material standards, and ISO 9001 quality management requirements.
They are widely used in oil and gas production, refineries, petrochemical plants, offshore platforms, power generation facilities, and high-pressure pipeline systems.
Common materials include Soft Iron, Carbon Steel, Stainless Steel 304, Stainless Steel 316, Duplex Stainless Steel, Super Duplex Stainless Steel, Inconel, and Monel, depending on service requirements.
Yes. Depending on the selected material grade, these gaskets can perform effectively in elevated temperature environments commonly found in industrial process systems.
Yes. Material grades, dimensions, and specifications can be manufactured according to project requirements and applicable industry standards.
R-Octagonal and R-Oval gaskets of the same ring number share the same ring dimensions. Oval rings suit both flat-bottom and round-bottom grooves; octagonal rings must be used only in flat-bottom grooves.
These gaskets are commonly used in wellhead equipment, high-pressure valves, pressure vessels, choke and kill manifolds, and pipeline systems requiring reliable sealing performance.
