The Ductile Iron Flanged Elbow is a pipe fitting used to change the direction of flow in a pipeline by 90° or 45°. It is manufactured from high strength ductile iron (QT450-10 or GJS-500-7), offering superior impact resistance and tensile strength compared to gray cast iron fittings. Both ends are integrally cast with flanges for direct bolting to flanged valves, pumps, expansion joints, or pipe spools. The internal and external surfaces are coated with fusion bonded epoxy (minimum 250 microns thickness) which meets WRAS and NSF/ANSI 61 standards for drinking water applications. Long radius elbows (1.5D) are recommended for low pressure drop and reduced erosion; short radius elbows (1.0D) are used where space is limited. All flanges are drilled to customer specifications — ANSI B16.5 Class 125/150, EN 1092-2 PN10/PN16, BS 4504, or JIS 10K/16K.
Why Choose Us / Advantage
Material Certificates Included: EN 10204 3.1 mill certificates for all ductile iron castings.
100% Hydrostatic Tested: Each fitting tested at 1.5x rated pressure.
WRAS / NSF Certified Coating: Safe for potable water — no taste or odor issues.
Full Traceability: Heat number stamped on each fitting.
Quick Lead Time: Standard sizes (DN50-DN600) in 15-20 days.
Technical Data
★ Material Ductile Iron QT450-10 / GJS-500-7
★ Angle 90° or 45° (other angles on request)
★ Radius Long radius (1.5D) or Short radius (1.0D)
★ Coating Fusion bonded epoxy (250μm min)
★ Pressure PN10 / PN16 / Class 125 / Class 150
★ Size Range DN50 – DN1200 (2″ – 48″)
★ Flange Drilling ANSI / EN / BS / JIS / Custom
★ Gasket Face Raised face or flat face
Applications
● Pump station discharge piping (direction change at pump nozzle)
● Water treatment plant interconnecting piping
● Fire ring mains around buildings
● Industrial cooling water distribution
● Municipal water transmission line turns
