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Elbow Flanges

If misaligned elbows or multi-weld joints are slowing your fit-up, costs and rework rise fast. Our Elbow Flanges merge elbow and flange into one piece, removing extra welds and cutting assembly time.

Standard Specification

ASME B16.5 (Flange) + ASME B16.9 (Elbow), MSS SP-43 (Integral Design)

Pressure Rating

Class 150 to 900 (PN10 to PN100) [Derated by 15-20% vs standard flange]

Material

Carbon Steel (A234 WPB), Stainless Steel (A403 WP316), Alloy Steel (A234 WP11)

Nominal Size

½” to 24″ (DN15 to DN600) [90° or 45° elbow options]

Flange Type

Weld Neck (WN) or Slip-On (SO) [Integral with elbow]
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Product Description

Multiple parts increase handling, boost leak risks, and delay your spool fabrication. These integral fittings simplify routing and improve flow continuity across high-pressure lines.

Facing Type

Raised Face (RF) or Flat Face (FF) [Both ends identical]

Dimensions

Center-to-face per ASME B16.9 + flange thickness [Reinforced weld zone]

Bolt Circle Diameter

Standard ASME B16.5 [±1mm tolerance]

Number & Size of Bolt Holes

Matches standard flange [Holes aligned for proper orientation]

Surface Finish

125-250 μin RA (flange face), 32-63 μin Ra (elbow bore)

Corrosion Resistance

Galvanized (A153), Rubber-lined, or Stainless Steel

Temperature Rating

-29°C to +400°C [Limited by elbow-to-flange weld]

Material Certification

EN 10204 3.1, PED 2014/68/EU, NACE MR0175 (optional)

Gasket Compatibility

Standard flange gaskets [Full-face type recommended]

Coating/Plating

Epoxy coating (FBE), Electroless nickel, Xylan

Manufacturing Method

Forged flange + Seamless elbow (A234) [Integrally cast options available]

Technical Advantages

If your teams weld elbows and flanges separately, misalignment often causes delays or rework. These Elbow Flanges remove that risk by combining both into one factory-welded unit. 

Using standard ASME B16.5 bolt circles and B16.9 elbow geometry, they align with pipe runs and require no fitting checks. Optional coatings like FBE or Xylan extend life in corrosive service without extra steps post-installation. 

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Need reliable Flanges for your next project? Get in touch with us today, and we’ll help you find exactly what you need!

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Industry Applications

Oil Refineries

Connects elbows in dense pipe racks, reducing weld count in corrosive zones with Class 300 support.

Power Plants

Links elbows to main headers under Class 600 duty, handling heat cycles from -29°C to +400°C.

Chemical Units

Builds leak-tight bends in reaction lines, using A403 WP316 for better corrosion performance.

Offshore Platforms

Fits compact bends in space-limited skids, supporting PN100-rated fluid systems in harsh conditions.

Shipbuilding

Integrates elbows in ballast and bilge piping, cutting flange mismatch and saving fabrication time.

Pharma Plants

Routes clean-process media with stainless integral elbows, avoiding dead zones from multi-weld joints.

Integrated Fit and Fewer Welds

Traditional builds with separate elbows and flanges can increase costs and extend installation hours. Our Elbow Flanges solve this with factory-aligned parts and tested weld zones. 

They meet standard bolt circle tolerances within ±1 mm and keep surface finishes between 125–250 μin RA. Your projects stay on track with fewer checks, faster spool assembly, and cleaner alignment every time. 

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Having Doubts? Our FAQ

Check all our Frequently Asked Question

How does the weld integrity of Elbow Flanges compare to separate fittings?

Elbow Flanges use factory-welded joints with full-penetration welds and reinforced zones. These welds undergo NDT checks, minimizing field failure risks. Buyers avoid on-site weld errors and inspection delays.

Can I replace both elbow and flange with this in pressure-rated applications?

Yes, Elbow Flanges meet combined ASME B16.5 and B16.9 specs, supporting Class 150 to 900 lines. They reduce leak points by eliminating one weld and gasket set. Pressure testing follows standard flange protocol.

Will bolt hole alignment match my existing piping layout?

These flanges follow standard bolt circle tolerances with ±1 mm variation. Bolt holes match ASME B16.5 layout, ensuring accurate fit with adjacent flanged components. No slotting or field corrections are needed.

Do I need special gaskets or hardware with these flanges?

You can use standard full-face gaskets with Raised Face or Flat Face types. No special bolts or nuts are required if following the ASME pressure class. This keeps your spare part inventory unchanged.

What material options are available for corrosive or high-temperature media?

We offer carbon steel, stainless steel, and alloy grades like A234 WP11 for high-temperature lines. Surface treatments include galvanizing, Xylan, or rubber lining. You can choose based on service media and lifecycle needs.

Can Frigate customize Elbow Flanges for non-standard piping layouts?
  • Yes, Frigate manufactures custom geometries including non-standard angles and face orientations. 
  • We align designs with your isometric drawings to eliminate site modifications. 
  • Custom drilling, thickness, and reinforcement options are available based on load conditions. 
  • Engineering support ensures compatibility with your existing piping system. 
What is Frigate’s typical manufacturing and delivery lead time?
  • Standard sizes: 2–4 weeks depending on material and pressure class. 
  • Custom or high-alloy grades: 4–8 weeks with full QA documentation. 
  • Expedited production available for shutdown-critical requirements. 
  • Clear production timelines shared at order confirmation stage. 
How does Frigate ensure quality and compliance for Elbow Flanges?
  • Manufactured under strict QA/QC procedures with dimensional and visual inspections. 
  • NDT testing (RT/UT/DPI) performed on weld zones as per project requirements. 
  • Supplied with EN 10204 3.1 certification and optional third-party inspection. 
  • Compliance with ASME, PED, and NACE standards when specified. 
Can Frigate support bulk or project-based procurement requirements?
  • Yes, we handle bulk orders for EPCs, OEMs, and large industrial projects. 
  • Batch production ensures consistency across entire piping systems. 
  • Dedicated project coordination for documentation, packing, and dispatch. 
  • Flexible logistics support for domestic and international delivery. 
What documentation does Frigate provide with each supply?
  • Detailed inspection reports and material test certificates included. 
  • Dimensional drawings and compliance certificates supplied on request. 
  • Traceability maintained from raw material to finished component. 
  • Supports clean procurement processes aligned with structured BOM practices 
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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ã…¤

Other Locations

  • Bhilai
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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Other Locations

  • Bangalore
  • Chennai
  • Coimbatore
  • Germany
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elbow flanges

Elbow Flanges

Need reliable wires and cables for your next project? Get in touch with us today, and we’ll help you find exactly what you need!

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elbow flanges

Elbow Flanges

Need reliable Machining for your next project? Get in touch with us today, and we’ll help you find exactly what you need!

Get Latest Price

Get Price Form