PTFE Coated Ring Type Gasket Manufacturer – API 6A / ASME
PTFE Coated RTJ Gaskets for High-Pressure & Corrosive Applications
PTFE coated Ring Type Joint (RTJ) gaskets are metal ring gaskets with a PTFE (Polytetrafluoroethylene) coating applied to the sealing surfaces. This design combines the high-pressure sealing capability of metal RTJ gaskets with the excellent chemical resistance and anti-stick properties of PTFE, making them ideal for corrosive and aggressive service conditions.
PTFE coated RTJ gaskets are widely used in oil & gas, petrochemical, chemical processing, offshore, and refinery applications. Gaskets Supplier
We are PTFE coated ring type gasket manufacturer. We specialize in producing high-performance PTFE-coated RTJ gaskets for oil & gas, petrochemical, and offshore applications. Our products comply with API 6A, ASME B16.20, and NACE MR0175 standards—delivering outstanding sealing integrity in corrosive and high-pressure environments.
What Is a PTFE Coated RTJ Gasket?
A PTFE coated RTJ gasket consists of a solid metal core (oval or octagonal type) machined to ASME standards, with a thin PTFE coating applied to the gasket’s outer sealing surfaces.
The metal core provides strength and pressure resistance, while the PTFE coating:
- Improves corrosion resistance
- Prevents galling and flange damage
- Enhances sealing in chemically aggressive environments
Ring Type Joint Gasket Standards
PTFE coated RTJ gaskets are manufactured in accordance with:
- ASME B16.20 – Metallic gaskets
- ASME B16.5 – Flanges (RTJ facing)
- ASME B16.47 – Large diameter flanges
- API 6A – RTJ gaskets for oil & gas equipment (when specified)
Why our PTFE Coated Ring Type Gaskets?
PTFE (Polytetrafluoroethylene) coating provides superior:
- Chemical resistance
- Non-stick surface
- Corrosion protection
- Improved reusability
- Reduced risk of flange damage
Our PTFE coated gaskets combine the strength of metallic cores (like stainless steel, carbon steel, or Inconel) with the chemical resistance of PTFE, ideal for aggressive media and sour service (H₂S) environments.
Ring gasket product We Offer
| Gasket Type | Standards | Size Range |
|---|---|---|
| R Type (Oval & Octagonal) | ASME B16.20 / API 6A | R11 to R105 |
| RX Type | API 6A | RX20 to RX215 |
| BX Type | API 6A (High Pressure) | BX150 to BX303 |
| Custom RTJ Gaskets | Drawings or samples | OEM / ODM |
Ring GasketMaterials Available
- Soft Iron
- Stainless Steel 304 / 316 / 321 / 347
- Duplex / Super Duplex
- Inconel 600 / 625 / 718
- Monel 400
All gaskets are precision machined and coated with virgin PTFE or filled PTFE as required.
Certifications & Quality
- API 6A, ASME B16.20
- EN 10204 3.1 MTC
- NACE MR0175/ISO 15156 compliant
- 100% tested for dimensional accuracy, hardness, and coating adhesion
Download the API BX ring gasket specification
Download the Ring Gasket Weight information
PTFE coated ring type joint gaskets provide a reliable sealing solution for high-pressure, high-temperature, and corrosive applications. By combining the strength of metal RTJ gaskets with the chemical resistance of PTFE, these gaskets offer improved sealing performance, reduced flange damage, and extended service life.
For material selection, drawings, and fast delivery, contact a trusted PTFE coated RTJ gasket supplier today.
Looking for a PTFE coated RTJ gasket manufacturer in China with competitive pricing and fast delivery? Contact us for a quote
