The ANSI B16.9 Stainless Steel 180° Long Radius (LR) Elbow, also known as a "Return Bend," is designed to reverse the flow of fluid in a parallel direction. The 1.5D Long Radius ensures a wider, smoother turn than short radius versions, minimizing pressure loss and mechanical stress. Manufactured from high-alloy grades like 304L or 316L, these elbows provide exceptional resistance to corrosion and scaling, making them vital for heat exchangers, heating coils, and compact piping manifolds.
Technical Attributes: Stainless Steel 180° LR Elbow
Standard,ANSI/ASME B16.9
Material Grades,"ASTM A403 WP304/L, WP316/L, WP321, WP347"
Angle,180 Degree (Return Bend)
Radius Type,Long Radius (LR) - R=1.5×NPS
Center-to-Center,O=3×NPS (3× Radius)
Manufacturing,Seamless or Welded (WP-W / WP-WX)
End Connection,Butt Welding (BW)
End Preparation,Beveled Ends per ASME B16.25
Size Range,1/2" to 24" (Seamless)
Wall Thickness,"SCH 5S, 10S, 40S, 80S"
Chromium Content,16.0%–20.0%
Nickel Content,8.0%–14.0%
Surface Finish,"Pickled, Passivated, or Mirror Polished"
Heat Treatment,Solution Annealing & Rapid Quench
Tensile Strength,≥485 MPa (70 ksi)
Yield Strength,≥170–205 MPa
Testing Standard,"PMI (Material ID), X-Ray, Hydrostatic"
Certification,EN 10204 3.1 / MTR
Applications,"Heat Exchangers, Condensers, HVAC"
Contact: Jorge Yang
Phone: +86-13588258503
E-mail: sales@fluvalve.com
Whatsapp:+86-13588258503
Add: Room 331, South Building,Building 1, No.3 Jinpeng Street, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province
