RTJ Ring Joint Gaskets | Octagonal & Oval Metal Gaskets Manufacturer

About GasketRTJ

Wenzhou Jingwei Seals Technology Co., Ltd. is a leading manufacturer and supplier of high-integrity sealing solutions, specializing in Ring Type Joint (RTJ) gaskets for extreme pressure and temperature environments.

With a strong focus on precision engineering and material science, we produce a wide range of metal gaskets including Octagonal, Oval, BX, RX, SBX, and Lens types. Our products meet international standards such as ASME B16.20, API 6A, and ISO 9001.

Industrial Grade

Built for Oil & Gas, Petrochemical, and Refining

Certified Quality

ASME, API, ISO Compliant

Our Products

Engineered for Maximum Sealing Performance Under Extreme Conditions

Octagonal Ring Joint Gasket

Material: SS316, Carbon Steel, Inconel, Monel
Standard: ASME B16.20, API 6A
Pressure: Up to 1500LB
Application: Flange Sealing in Oilfield

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Oval Ring Joint Gasket

Material: SS304L, 316L, Soft Iron
Pressure Rating: 900LB
Heatproof & Corrosion Resistant
Custom Sizes Available

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BX Ring Joint Gasket

Type: BX158, BX172
Material: F55, Incoloy 825
Coating: Phosphate, Zinc, Cadmium
API 6A Certified

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RX Ring Joint Gasket

Type: RX24, R24
Hardness: Rockwell C 20-30
High-Temperature Resistant
Weld Ring Design Available

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Lens Ring Joint Gasket

Type: R39, R24
Standard: ISO 9001, ASME B16.20
Material: Stainless Steel, Monel 400
For API Flange Connections

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Soft Iron Ring Gasket

High Malleability & Conformability
Material: Soft Iron, Copper
HB130, HB150 Hardness Options
Excellent for Repeated Use

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SBX Ring Gasket

Type: SBX 152, SBX 153
Size: 2-1/16” and above
Material: Stainless Steel, API17D
Heatproof & Durable Metal Seal

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Metal Ring Joint Gasket

Full Range of RTJ Types
Materials: Duplex, Titanium, Hastelloy
Custom Machined to Specification
For Petrochemical & Gas Industry

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Why Choose GasketRTJ?

Certified Quality

All products manufactured under ISO 9001 quality management system. Compliant with ASME B16.20, API 6A, and other international standards.

Extreme Performance

Engineered for high-pressure, high-temperature environments. Metal-to-metal sealing ensures zero leakage even under dynamic loads.

Custom Solutions

We offer custom machining, material selection, and design services to meet your exact flange and operational requirements.

Frequently Asked Questions

What is the difference between Octagonal and Oval RTJ gaskets?

Octagonal gaskets have a slightly higher sealing efficiency due to line contact, while oval gaskets are easier to install and remove. Both provide metal-to-metal sealing under high pressure.

Which materials are available for RTJ gaskets?

We offer SS304, SS316, 304L, 316L, Monel 400, Inconel 625, Incoloy 825, Carbon Steel, Soft Iron, Titanium, and specialty alloys like Hastelloy C276.

Are your gaskets API 6A certified?

Yes, many of our gasket types including BX, RX, and SBX are manufactured to API 6A specifications and tested accordingly.

Can you customize gaskets to our specifications?

Absolutely. We offer full customization in size, material, hardness, and surface finish. Send us your drawings or requirements for a quote.

Get in Touch

Contact Information

Contact Person: Mr. Jack

Email: [email protected]

Phone: +86 187 5777 3759

Visit Official Website

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