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| Quantity: | |
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SO Flange
SDFL
| Nominal Size | Outer Diameter | Central circle diameter | Bolt Hole Diameter | Number of Bolt Holes | Inner Diameter | Flange Ring Height | Weld Groove Diameter | Flange Overall Height | Sealing Face Diameter | Sealing Face Height | |
| DN | NPS | A | J | I | B | C | F | D | G | ||
| 15 | 1/2 | 120.6 | 82.6 | 22.4 | 4 | 22.4 | 22.4 | 38.1 | 31.7 | 35.1 | 6.4 |
| 20 | 3/4 | 130 | 88.9 | 22.4 | 4 | 27.7 | 25.4 | 44.4 | 35 | 42.9 | 6.4 |
| 25 | 1 | 149.3 | 101.6 | 25.4 | 4 | 34.5 | 28.4 | 52.3 | 41.1 | 50.8 | 6.4 |
| 32 | 1-1/4 | 158.7 | 111.3 | 25.4 | 4 | 43.2 | 28.4 | 63.5 | 41.1 | 63.5 | 6.4 |
| 40 | 1-1/2 | 177.8 | 124 | 28.4 | 4 | 49.5 | 31.7 | 69.85 | 44.5 | 73.15 | 6.4 |
| 50 | 2 | 215.9 | 165.1 | 25.4 | 8 | 62 | 38.1 | 104.6 | 57.15 | 91.9 | 6.4 |
| 65 | 2-1/2 | 244.3 | 190.5 | 28.4 | 8 | 74.7 | 41.1 | 123.9 | 63.5 | 104.6 | 6.4 |
| 80 | 3 | 241.3 | 190.5 | 25.4 | 8 | 90.7 | 38.1 | 127 | 53.8 | 127 | 6.4 |
| 100 | 4 | 292.1 | 234.9 | 31.7 | 8 | 116.1 | 44.4 | 158.7 | 69.85 | 157.2 | 6.4 |
| 125 | 5 | 349.2 | 279.4 | 35 | 8 | 143.8 | 50.8 | 190.5 | 79.25 | 185.7 | 6.4 |
| 150 | 6 | 381 | 317.5 | 31.7 | 12 | 170.7 | 55.6 | 234.9 | 85.8 | 215.9 | 6.4 |
| 200 | 8 | 469.9 | 393.7 | 38.1 | 12 | 221.5 | 63.5 | 298.4 | 101.6 | 269.7 | 6.4 |
| 250 | 10 | 546.1 | 469.9 | 38.1 | 16 | 276.3 | 69.85 | 368.3 | 107.9 | 323.9 | 6.4 |
| 300 | 12 | 609.6 | 533.4 | 38.1 | 20 | 327.1 | 79.25 | 419.1 | 117.3 | 381 | 6.4 |
| 350 | 14 | 641.3 | 558.8 | 41.1 | 20 | 359.1 | 85.8 | 450.8 | 130 | 412.8 | 6.4 |
| 400 | 16 | 704.8 | 615.9 | 44.4 | 20 | 410.5 | 88.9 | 508 | 133.3 | 469.9 | 6.4 |
| 450 | 18 | 787.4 | 685.8 | 50.8 | 20 | 461.8 | 101.6 | 565.1 | 152.4 | 533.4 | 6.4 |
| 500 | 20 | 857.2 | 749.3 | 53.8 | 20 | 513.1 | 107.9 | 622.3 | 158.7 | 584.2 | 6.4 |
| 600 | 24 | 1041 | 901.7 | 66.6 | 20 | 616 | 139.7 | 749.3 | 203.2 | 692.2 | 6.4 |
The ANSI B16.5 304 Stainless Steel Flange Loose Sleeve is a high-performance component specifically designed for pipeline systems. Made from premium 304 stainless steel, this loose sleeve flange provides exceptional durability, corrosion resistance, and high tensile strength, making it an ideal choice for industries such as oil and gas, water treatment, and chemical processing. With its adherence to the ANSI B16.5 standards, this flange ensures reliable connections in high-pressure and high-temperature applications, guaranteeing system integrity and minimal maintenance.
Our ANSI B16.5 304 Stainless Steel Flange Loose Sleeve is crafted to meet the highest industrial standards. It features an innovative loose sleeve design that provides ease of installation and removal, making it highly suitable for applications that require regular maintenance or system modifications. This flange is manufactured using 304 stainless steel, known for its excellent corrosion resistance and ability to withstand the harshest environments, including high-pressure systems and extreme temperatures.
Whether you are building a new pipeline system or upgrading an existing one, this flange is designed to enhance the performance and reliability of your setup. The loose sleeve design allows for flexibility in connecting components without the need for extensive tools or complex procedures, reducing installation time and operational costs.
Material: Made of high-quality 304 stainless steel, providing excellent resistance to corrosion, rust, and staining.
Design: Loose sleeve construction that ensures easy installation and removal, saving both time and labor costs.
Standards Compliance: Manufactured according to ANSI B16.5 standards, ensuring compatibility and reliability for various industrial applications.
Corrosion Resistance: Ideal for use in harsh environments such as chemical plants, refineries, and marine applications.
Versatility: Perfect for a wide range of pipeline systems, including oil, gas, water treatment, and chemical processing industries.
High Performance: Designed to withstand high pressure and extreme temperatures without compromising performance.
(1) Oil and gas industry
High pressure wellhead equipment
Used for Christmas Tree or wellhead manifold, connecting high-pressure oil pipes (≥ 15000 psi).
Natural gas compression station
Used for quick installation, disassembly, and maintenance in the inlet and outlet pipelines of compressors.
(2) Chemical and petrochemical industry
High pressure reactor pipeline
Suitable for high-pressure (20-30 MPa) systems such as polymerization reactions and hydrocracking.
Corrosive medium pipeline
If PTFE or Hastelloy lining material is used, it can be used for strong acid (sulfuric acid, hydrochloric acid) or strong alkali (NaOH) transportation systems.
System type, operating condition parameters, SO flange requirements
High pressure natural gas pipeline pressure: 25 MPa, temperature: 50 ° C Material: A105+RTJ seal, bolt: A193 B7M (sulfur resistant).
Ethylene cracking unit pressure: 22 MPa, temperature: 300 ° C Material: A182 F316L, gasket: stainless steel wrapped graphite pad.
Main steam pipe pressure of the power station: 26 MPa, temperature: 600 ° C Material: A182 F91 (9Cr-1Mo-V), requiring post weld heat treatment (PWHT).
LNG low-temperature pipeline pressure: 20 MPa, temperature: -162 ° C Material: A350 LF3, sealing surface RTJ, bolt A320 L7 (low-temperature toughness).
High-Quality Materials: We use only top-grade 304 stainless steel to ensure that each flange meets rigorous quality standards and performs reliably in even the most demanding environments.
Precision Engineering: Our flanges are manufactured with precision and attention to detail, guaranteeing a perfect fit and reliable performance in pipeline systems.
Global Shipping: We offer fast and efficient global shipping, ensuring that our products are delivered promptly, no matter where you are located.
Customization: Need a custom size or pressure rating? We offer tailored flange solutions to meet your specific requirements, ensuring optimal performance for your pipeline systems.
Expert Support: Our experienced technical team is available to provide support and advice to help you select the right flange for your system, ensuring a smooth and efficient installation process.
The ANSI B16.5 304 Stainless Steel Flange Loose Sleeve is made from high-quality 304 stainless steel, known for its excellent corrosion resistance and high tensile strength.
This flange is ideal for use in industries such as oil and gas, water treatment, chemical processing, and other sectors that require high-pressure pipeline systems.
Yes, the 304 stainless steel used in this flange is designed to withstand extreme temperatures, making it suitable for high-temperature applications.
Yes, the ANSI B16.5 standards ensure that this flange is suitable for use in both low and high-pressure pipeline systems, offering a secure and leak-free connection.
Yes, we offer custom solutions based on your specific needs, including custom sizes, pressure ratings, and materials. Please contact our team for more details.
Our technical team is available to assist you with selecting the appropriate flange size and pressure rating based on your pipeline specifications. Feel free to reach out for personalized advice.
| Nominal Size | Outer Diameter | Central circle diameter | Bolt Hole Diameter | Number of Bolt Holes | Inner Diameter | Flange Ring Height | Weld Groove Diameter | Flange Overall Height | Sealing Face Diameter | Sealing Face Height | |
| DN | NPS | A | J | I | B | C | F | D | G | ||
| 15 | 1/2 | 120.6 | 82.6 | 22.4 | 4 | 22.4 | 22.4 | 38.1 | 31.7 | 35.1 | 6.4 |
| 20 | 3/4 | 130 | 88.9 | 22.4 | 4 | 27.7 | 25.4 | 44.4 | 35 | 42.9 | 6.4 |
| 25 | 1 | 149.3 | 101.6 | 25.4 | 4 | 34.5 | 28.4 | 52.3 | 41.1 | 50.8 | 6.4 |
| 32 | 1-1/4 | 158.7 | 111.3 | 25.4 | 4 | 43.2 | 28.4 | 63.5 | 41.1 | 63.5 | 6.4 |
| 40 | 1-1/2 | 177.8 | 124 | 28.4 | 4 | 49.5 | 31.7 | 69.85 | 44.5 | 73.15 | 6.4 |
| 50 | 2 | 215.9 | 165.1 | 25.4 | 8 | 62 | 38.1 | 104.6 | 57.15 | 91.9 | 6.4 |
| 65 | 2-1/2 | 244.3 | 190.5 | 28.4 | 8 | 74.7 | 41.1 | 123.9 | 63.5 | 104.6 | 6.4 |
| 80 | 3 | 241.3 | 190.5 | 25.4 | 8 | 90.7 | 38.1 | 127 | 53.8 | 127 | 6.4 |
| 100 | 4 | 292.1 | 234.9 | 31.7 | 8 | 116.1 | 44.4 | 158.7 | 69.85 | 157.2 | 6.4 |
| 125 | 5 | 349.2 | 279.4 | 35 | 8 | 143.8 | 50.8 | 190.5 | 79.25 | 185.7 | 6.4 |
| 150 | 6 | 381 | 317.5 | 31.7 | 12 | 170.7 | 55.6 | 234.9 | 85.8 | 215.9 | 6.4 |
| 200 | 8 | 469.9 | 393.7 | 38.1 | 12 | 221.5 | 63.5 | 298.4 | 101.6 | 269.7 | 6.4 |
| 250 | 10 | 546.1 | 469.9 | 38.1 | 16 | 276.3 | 69.85 | 368.3 | 107.9 | 323.9 | 6.4 |
| 300 | 12 | 609.6 | 533.4 | 38.1 | 20 | 327.1 | 79.25 | 419.1 | 117.3 | 381 | 6.4 |
| 350 | 14 | 641.3 | 558.8 | 41.1 | 20 | 359.1 | 85.8 | 450.8 | 130 | 412.8 | 6.4 |
| 400 | 16 | 704.8 | 615.9 | 44.4 | 20 | 410.5 | 88.9 | 508 | 133.3 | 469.9 | 6.4 |
| 450 | 18 | 787.4 | 685.8 | 50.8 | 20 | 461.8 | 101.6 | 565.1 | 152.4 | 533.4 | 6.4 |
| 500 | 20 | 857.2 | 749.3 | 53.8 | 20 | 513.1 | 107.9 | 622.3 | 158.7 | 584.2 | 6.4 |
| 600 | 24 | 1041 | 901.7 | 66.6 | 20 | 616 | 139.7 | 749.3 | 203.2 | 692.2 | 6.4 |
The ANSI B16.5 304 Stainless Steel Flange Loose Sleeve is a high-performance component specifically designed for pipeline systems. Made from premium 304 stainless steel, this loose sleeve flange provides exceptional durability, corrosion resistance, and high tensile strength, making it an ideal choice for industries such as oil and gas, water treatment, and chemical processing. With its adherence to the ANSI B16.5 standards, this flange ensures reliable connections in high-pressure and high-temperature applications, guaranteeing system integrity and minimal maintenance.
Our ANSI B16.5 304 Stainless Steel Flange Loose Sleeve is crafted to meet the highest industrial standards. It features an innovative loose sleeve design that provides ease of installation and removal, making it highly suitable for applications that require regular maintenance or system modifications. This flange is manufactured using 304 stainless steel, known for its excellent corrosion resistance and ability to withstand the harshest environments, including high-pressure systems and extreme temperatures.
Whether you are building a new pipeline system or upgrading an existing one, this flange is designed to enhance the performance and reliability of your setup. The loose sleeve design allows for flexibility in connecting components without the need for extensive tools or complex procedures, reducing installation time and operational costs.
Material: Made of high-quality 304 stainless steel, providing excellent resistance to corrosion, rust, and staining.
Design: Loose sleeve construction that ensures easy installation and removal, saving both time and labor costs.
Standards Compliance: Manufactured according to ANSI B16.5 standards, ensuring compatibility and reliability for various industrial applications.
Corrosion Resistance: Ideal for use in harsh environments such as chemical plants, refineries, and marine applications.
Versatility: Perfect for a wide range of pipeline systems, including oil, gas, water treatment, and chemical processing industries.
High Performance: Designed to withstand high pressure and extreme temperatures without compromising performance.
(1) Oil and gas industry
High pressure wellhead equipment
Used for Christmas Tree or wellhead manifold, connecting high-pressure oil pipes (≥ 15000 psi).
Natural gas compression station
Used for quick installation, disassembly, and maintenance in the inlet and outlet pipelines of compressors.
(2) Chemical and petrochemical industry
High pressure reactor pipeline
Suitable for high-pressure (20-30 MPa) systems such as polymerization reactions and hydrocracking.
Corrosive medium pipeline
If PTFE or Hastelloy lining material is used, it can be used for strong acid (sulfuric acid, hydrochloric acid) or strong alkali (NaOH) transportation systems.
System type, operating condition parameters, SO flange requirements
High pressure natural gas pipeline pressure: 25 MPa, temperature: 50 ° C Material: A105+RTJ seal, bolt: A193 B7M (sulfur resistant).
Ethylene cracking unit pressure: 22 MPa, temperature: 300 ° C Material: A182 F316L, gasket: stainless steel wrapped graphite pad.
Main steam pipe pressure of the power station: 26 MPa, temperature: 600 ° C Material: A182 F91 (9Cr-1Mo-V), requiring post weld heat treatment (PWHT).
LNG low-temperature pipeline pressure: 20 MPa, temperature: -162 ° C Material: A350 LF3, sealing surface RTJ, bolt A320 L7 (low-temperature toughness).
High-Quality Materials: We use only top-grade 304 stainless steel to ensure that each flange meets rigorous quality standards and performs reliably in even the most demanding environments.
Precision Engineering: Our flanges are manufactured with precision and attention to detail, guaranteeing a perfect fit and reliable performance in pipeline systems.
Global Shipping: We offer fast and efficient global shipping, ensuring that our products are delivered promptly, no matter where you are located.
Customization: Need a custom size or pressure rating? We offer tailored flange solutions to meet your specific requirements, ensuring optimal performance for your pipeline systems.
Expert Support: Our experienced technical team is available to provide support and advice to help you select the right flange for your system, ensuring a smooth and efficient installation process.
The ANSI B16.5 304 Stainless Steel Flange Loose Sleeve is made from high-quality 304 stainless steel, known for its excellent corrosion resistance and high tensile strength.
This flange is ideal for use in industries such as oil and gas, water treatment, chemical processing, and other sectors that require high-pressure pipeline systems.
Yes, the 304 stainless steel used in this flange is designed to withstand extreme temperatures, making it suitable for high-temperature applications.
Yes, the ANSI B16.5 standards ensure that this flange is suitable for use in both low and high-pressure pipeline systems, offering a secure and leak-free connection.
Yes, we offer custom solutions based on your specific needs, including custom sizes, pressure ratings, and materials. Please contact our team for more details.
Our technical team is available to assist you with selecting the appropriate flange size and pressure rating based on your pipeline specifications. Feel free to reach out for personalized advice.
