Product Description
Suitable for petrochemical applications, the Stainless Steel Welded Flange is specially designed for sustaining severe service conditions caused due to sub-zero, high pressure or high temperature. Constructed with a long tapered hub, there is a gradual transition of thickness in the area of butt weld joining to the pipe. Ensuring no restriction to the flow of liquid, this type of welded flange can be easily bored as to match the inner diameter of the mating pipe. This results in the reduction of erosion, thus preventing turbulence at the joint.
Features:
- Long & tapered hub
- Resistant to dishing
- Can sustain high pressure & temperature load
- Rust proof finish
- Smooth transition from flange thickness to pipe
- Ensure excellent stress distribution
- Can be easily radio graphed for flaw detection
- Can be easily welded to a pipe or fitting with a single full penetration
Technical specifications:
- Flanges form: Stainless steel ASTM A 182, A 240
- Flanges size: 1/8" NB TO 48"NB
- Flanges class: 150, 300, 400, 600, 900, 1500 & 2500
- Flanges grade: F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L
Versatile Applications and CompatibilityThese weld neck flanges are suitable for a wide range of fluidsincluding water, oil, gas, steam, and chemicals. Thanks to standardized dimensions and pressure ratings (ANSI B16.5, DIN, JIS, and others), they seamlessly integrate into pipelines across the oil & gas, petrochemical, power, and food industries. The numerous grades available ensure compatibility for both low and high-temperature operations.
Premium Construction and Quality AssuranceManufactured using advanced forging techniques, our flanges are heat treated and polished for superior mechanical properties and finish. Solution annealing improves their resistance to corrosion and high temperature, while each flange is marked with essential information (size, grade, pressure, standards) and supplied with EN 10204 3.1/3.2 certification and mill test reports for complete traceability.
Customization and Secure PackagingThese flanges can be customized in size, material, facing, and drilling to meet specific application requirements. To ensure product integrity during transit, each flange is securely packed in wooden cases or pallets, wrapped for rust protection, and delivered in pristine condition worldwide.
FAQs of Stainless Steel Weld Neck Flanges:
Q: How are Stainless Steel Weld Neck Flanges installed in piping systems?
A: Stainless Steel Weld Neck Flanges are installed by butt welding the tapered neck to the pipe. This process ensures excellent alignment, structural strength, and minimizes stress concentration at the base, making them ideal for high-pressure and high-temperature applications.
Q: What are the main benefits of using weld neck flanges with raised face, flat face, or RTJ connections?
A: Using weld neck flanges with various face types (Raised Face, Flat Face, Ring Type Joint) allows for enhanced sealing and compatibility with different gasket types and piping standards. This results in leak-proof performance, easier maintenance, and suitability for a wide range of fluids and operational pressures.
Q: When should I choose a specific material grade like SS316L or Duplex for my application?
A: The choice of material grade, such as SS316L or Duplex, depends on the applications operating conditionslike exposure to corrosive media, temperature range, and pressure requirements. For highly corrosive or high-temperature environments, Duplex and Super Duplex offer superior performance, while SS304/316 grades are suitable for general use.
Q: Where are these stainless steel weld neck flanges commonly applied?
A: These flanges are widely used in oil & gas pipelines, petrochemical processing plants, power generation facilities, water treatment plants, shipbuilding, and the food & pharmaceutical industries due to their strength, corrosion resistance, and reliability in demanding environments.
Q: What quality certifications and standards do these flanges comply with?
A: All flanges are certified with EN 10204 3.1 or 3.2, accompanied by mill test certificates. They comply with international standards such as ANSI B16.5, ASME, DIN, JIS, BS, and EN1092-1, ensuring consistent quality and traceability for critical installations.
Q: How do you ensure the rust protection and safe delivery of these flanges?
A: Each flange is packed using rust-proof materials, bubble wrap, and is placed in sturdy wooden cases or pallets. This packaging safeguards against moisture and mechanical damage, ensuring products arrive in perfect condition regardless of destination.
Q: Can I request custom sizes, materials, or facing types for specific project needs?
A: Yes, customization is available for size, material grade, facing types, and drilling patterns. Our engineering team works closely with clients to deliver flanges precisely as per unique project specifications or international standards.