China Manufacturer of Incoloy 825 Oval Ring Type Joint Gasket N08825
Ring Joint gaskets are available in octagonal or oval cross-section. Our API Ring Joint Gaskets are used in applications up to 10,000 psi. Where new flanges are to be used, we recommend the higher efficiency octagonal cross-section gaskets. Oval cross-section gaskets are still a very effective gasket solution where the application requires sealing on existing flanges with round bottom grooves.
Oval ring-joint gasket
The Type BX ring-joint gasket is manufactured with a diameter slightly larger than that of the mating ring grooves, which allows radial interference to exist. The OD sealing angle of Type BX ring gaskets is considered to be the primary seal since both radial and axial loads are applied to the OD sealing angles causing the sealing force on the OD sealing angles to be substantially greater than the sealing force on the ID sealing angles. Type BX ring-joint gaskets are designed to be pressure-energized, and do allow face-to-face contact of the flanges or hubs. Axial through-holes are drilled in each BX ring-joint gasket to ensure pressue equalization between each face of the ring-joint gasket and the mating ring grooves.
Dimensions for API ring joint gaskets
Dimensions for API ring joint gaskets and grooves are covered in ANSI B16.20 and API6A.
We stock a wide range of sizes: API Ring Joint Gasket BX Ring Gasket
| API Ring Number | Nominal Flange Bore, Inches | |||
| 5000 psi | 10,000 psi | 15,000 psi | 20,000 psi | |
| BX 150 | 1-11/16 | 1-11/16 | ||
| BX 151 | 1-13/16 | 1-13/16 | 1-13/16 | |
| BX 152 | 2-1/16 | 2-1/16 | 2-1/16 | |
| BX 153 | 2-9/16 | 2-9/16 | 2-9/16 | |
| BX 154 | 3-1/16 | 3-1/16 | 3-1/16 | |
| BX 155 | 4-1/16 | 4-1/16 | 4-1/16 | |
| BX 156 | 7-1/16 | 7-1/16 | 7-1/16 | |
| BX 157 | 9 | 9 | ||
| BX 158 | 11 | 11 | ||
| BX 159 | 13-5/8 | |||
| BX 160 | 13-5/8 | |||
| BX 161 | 16-3/4 | |||
| BX 162 | 16-3/4 | 16-3/4 | ||
| BX 163 | 18-3/4 | |||
| BX 164 | 18-3/4 | |||
| BX 165 | 21-1/4 | |||
| BX 166 | 21-1/4 | |||
| BX 167 | 26-3/4; 2000 & 3000 psi | |||
| BX 168 | ||||
| RTJ standard size gaskets are manufactured in accordance with API-6A and ANSI B16.2 specifications and are furnished in stock materials including soft iron, low carbon steel, 4-6 chrome (F5), 304 & 304L, 316 & 316L, 347, 410, Monel, Inconel and Incoloy. |
Dimensions and Weights of Type BX Ring joint gasket for use with API 6A Type 6BX flanges.
All dimensions are in mm and weights are in kg. The pipe size is the Nominal Pipe Size (NPS).
| Nominal Size (NPS) |
API Class | API 6A (psi) 2000 |
API 6A (psi) 3000 |
API 6A (psi) 5000 |
API 6A (psi) 10000 |
API 6A (psi) 15000 |
API 6A (psi) 20000 |
Ring No. | OD of Ring OD |
Height of Ring H |
Width of Ring A |
Width of Flat C |
OD of Flat OTD |
Hole Size D |
Radius on Ring R1 (min) |
Radius on Ring R1 (max) |
Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1-11/16” | 10000, 15000 | – | – | – | 1-11/16″ | 1-11/16″ | – | BX 150 | 72.19 | 9.3 | 9.3 | 7.98 | 70.87 | 1.6 | 0.13 | ||
| 1-13/16” | 10000, 15000, 20000 | – | – | – | 1-13/16″ | 1-13/16″ | 1-13/16″ | BX 151 | 76.40 | 9.63 | 9.63 | 8.26 | 75.03 | 1.6 | 0.8 | 1.2 | 0.15 |
| 2-1/16” | 10000, 15000, 20000 | – | – | – | 2-1/16″ | 2-1/16″ | 2-1/16″ | BX 152 | 84.68 | 10.24 | 10.24 | 8.79 | 83.24 | 1.6 | 0.8 | 1.2 | 0.19 |
| 2-9/16” | 10000, 15000, 20000 | – | – | – | 2-9/16″ | 2-9/16″ | 2-9/16″ | BX 153 | 100.94 | 11.38 | 11.38 | 9.78 | 99.31 | 1.6 | 0.9 | 1.4 | 0.29 |
| 3-1/16” | 10000, 15000, 20000 | – | – | – | 3-1/16″ | 3-1/16″ | 3-1/16″ | BX 154 | 116.84 | 12.40 | 12.40 | 10.64 | 115.09 | 1.6 | 1.0 | 1.5 | 0.40 |
| 4-1/16” | 10000, 15000, 20000 | – | – | – | 4-1/16″ | 4-1/16″ | 4-1/16″ | BX 155 | 147.96 | 14.22 | 14.22 | 12.22 | 145.95 | 1.6 | 1.1 | 1.7 | 0.56 |
| 7-1/16” | 10000, 15000, 20000 | – | – | – | 7-1/16″ | 7-1/16″ | 7-1/16″ | BX 156 | 237.92 | 18.62 | 18.62 | 15.98 | 235.28 | 3.2 | 1.5 | 2.2 | 1.88 |
| 9” | 10000, 15000 | – | – | – | 9″ | 9″ | 9″ | BX 157 | 294.46 | 20.98 | 20.98 | 18.01 | 291.49 | 3.2 | 1.7 | 2.5 | 2.98 |
| 11” | 10000, 15000 | – | – | – | 11″ | 11″ | 11″ | BX 158 | 352.04 | 23.14 | 23.14 | 19.86 | 348.77 | 3.2 | 1.9 | 2.8 | 4.36 |
| 13-5/8” | 10000 | – | – | – | 13-5/8″ | 13-5/8″ | 13-5/8″ | BX 159 | 426.72 | 25.70 | 25.70 | 22.07 | 423.09 | 3.2 | 2.1 | 3.1 | 6.55 |
| 13-5/8” | 5000 | – | – | 13-5/8″ | – | – | – | BX 160 | 402.59 | 23.83 | 13.74 | 10.36 | 399.21 | 3.2 | 1.9 | 2.9 | 3.07 |
| 16-5/8” | 5000 | – | – | 16-3/4″ | – | – | – | BX 161 | 491.41 | 28.07 | 16.21 | 12.24 | 487.45 | 3.2 | 2.2 | 3.4 | 5.35 |
| 16-5/8” | 5000, 10000 | – | – | 16-3/4″ | 16-3/4″ | – | – | BX 162 | 475.49 | 14.22 | 14.22 | 12.22 | 473.48 | 1.6 | 1.1 | 1.7 | 1.99 |
| 18-¾” | 5000 | – | – | 18-3/4″ | – | – | – | BX 163 | 556.16 | 30.10 | 17.37 | 13.11 | 551.89 | 3.2 | 2.4 | 3.6 | 6.53 |
| 18-¾” | 100000 | – | – | – | 18-3/4″ | 18-3/4″ | – | BX 164 | 570.56 | 30.10 | 24.59 | 20.32 | 566.29 | 3.2 | 2.4 | 3.6 | 9.55 |
| 21-¼” | 5000 | – | – | 21-1/4″ | – | – | – | BX 165 | 624.71 | 32.03 | 18.49 | 13.97 | 620.19 | 3.2 | 2.6 | 3.8 | 8.76 |
| 21-¼” | 10000 | – | – | – | 21-1/4″ | – | – | BX 166 | 640.03 | 32.03 | 26.14 | 21.62 | 635.51 | 3.2 | 2.6 | 3.8 | 12.82 |
| 26-¾” | 2000 | 26-3/4″ | – | – | – | – | – | BX 167 | 759.36 | 35.87 | 13.11 | 8.03 | 754.28 | 1.6 | 2.9 | 4.3 | 8.53 |
| 26-¾” | 3000 | – | 26-3/4″ | – | – | – | – | BX 168 | 765.25 | 35.87 | 16.05 | 10.97 | 760.17 | 1.6 | 2.9 | 4.3 | 11.14 |
| 5-1/8” | 10000 | – | – | – | 5-1/8″ | – | – | BX 169 | 173.51 | 15.85 | 12.93 | 10.69 | 171.27 | 1.6 | 1.3 | 1.9 | 0.73 |
| 6-5/8” | 10000, 15000 | – | – | – | 6-5/8″ | 6-5/8″ | – | BX 170 | 218.03 | 14.22 | 14.22 | 12.22 | 216.03 | 1.6 | 1.1 | 1.7 | 1.03 |
| 8-9/16” | 10000, 15000 | – | – | – | 8-9/16″ | 8-9/16″ | – | BX 171 | 267.44 | 14.22 | 14.22 | 12.22 | 265.43 | 1.6 | 1.1 | 1.7 | 1.24 |
| 11-5/32” | 10000, 15000 | – | – | – | 11-5/32″ | 11-5/32″ | – | BX 172 | 333.07 | 14.22 | 14.22 | 12.22 | 331.06 | 1.6 | 1.1 | 1.7 | 1.56 |
| 30” | 2000, 3000 | 30″ | 30″ | – | – | – | – | BX 303 | 852.75 | 37.95 | 16.97 | 11.61 | 847.37 | 1.6 | 3.0 | 4.6 | – |
Tolerances
Outside Diameter: +0mm, -0.15mm
Height of Ring (H): +0.20mm, -0mm
Width of Ring (A): +0.20mm, -0mm
Width of Flat (C): +0.15mm, -0mm
OD of Flat (OTD): +0.50mm, -0.50mm
Hole Size (D): +0.50mm, -0.50mm
Radius on Ring (R1): +0.50mm, -0.50mm
What is an Incoloy 825 Ring Gasket?
Incoloy 825 ring gaskets are nickel-iron-chromium alloy gaskets designed for high-temperature, high-pressure, and corrosive environments. These gaskets offer superior resistance to acids, oxidation, and pitting, making them ideal for chemical processing, offshore, and high-temperature applications.
Standard Specifications for Incoloy 825 Ring Gasket:
Material Standard: ASTM B564, ASME SB564
Gasket Standards: API 6A, ASME B16.20, ANSI B16.5, DIN EN 12560
Temperature Range: Up to 1000°F (540°C)
Pressure Ratings: Available in Class 150, 300, 600, 900, 1500, and 2500
Types:
- R-Type (Oval & Octagonal) – Used in ASME B16.5 and API 6A flanges
- RX-Type – Suitable for higher-pressure sealing applications
- BX-Type – Designed for API 6A high-pressure systems
Applications of Incoloy 825 Ring Gasket:
Oil & Gas Industry – Pipelines, offshore drilling, refineries
Chemical & Petrochemical Plants – Acid processing, heat exchangers
Power Generation – Boilers, steam turbines, nuclear plants
Marine & Offshore – Saltwater applications, corrosion resistance
Looking for premium Incoloy 825 ring gaskets?Pls drop us a mail for any enquiries.
