Two Functions in One Fitting

Our Reducing 90 degree Elbow combines two jobs in one part: it changes pipe diameter and turns the flow direction simultaneously. One fitting replaces a separate reducer plus a 90° elbow. The inlet and outlet can have different diameters, ranging from 6 mm to 60 mm. The minimum bend radius is 2.5× the larger pipe diameter (DIN 2445). Coaxiality between the two ends is ≤ φ0.1 mm. Flared wall thickness deviation is ≤ ±10%, and bend ovality is ≤8%. The taper angle for size change is 15°–25°, optimized for smooth fluid flow. Anodizing thickness is 8–12 μm, hard anodizing hardness ≥500HV, and salt spray test passes 336 hours. Working pressure is 21 MPa (3000 psi).

Fewer Leak Points and Compact Installation

Compared with two separate fittings, which have three leak points, the Reducing 90 degree Elbow has only one-reducing leak points by 67%. Installation space is reduced by 40%. The taper angle ensures smooth flow and 60% lower local pressure loss compared to a sudden diameter change. The reducer section can be positioned before or after the bend according to your needs. CFD-optimized design ensures no wrinkles, no sudden wall thickness reduction, and consistent flow performance.

CFD-Optimized for Better Flow

Our computer simulations show that the Reducing 90 degree Elbow reduces turbulence intensity by 35% compared to a separate reducer and elbow combination. Cv value loss is only 0.15–0.25 depending on the size ratio. This fitting is ideal for hydraulic pump outlets, cooler inlets/outlets, and multi-level hydraulic systems on construction machinery.

Specifications & Parameters

Parameter	Value
Material	6061-T6 or 6082 Aluminum
Minimum Bend Radius	2.5× larger end diameter (DIN 2445)
End Coaxiality	≤ φ0.1 mm
Wall Thickness Deviation	≤ ±10%
Ovality at Bend	≤ 8%
Taper Angle	15°–25°
Anodizing Thickness	8–12 μm
Hard Anodizing Hardness	≥500HV
Salt Spray Test	≥336 hours
Working Pressure	21 MPa (3000 psi)

Where You Can Use This Product

Use this elbow for hydraulic pump outlets (big pump to small pipe), cooler inlet/outlet connections, and construction machine multi-level hydraulic lines. It also works for lubrication system main-to-branch transitions. Keywords for our products include custom machined parts, fasteners (clamps and seals), tube connectors (pipes and fittings), valves (filters and safety valves), and drone components. The Reducing 90 degree Elbow is a core product in our tube connector line.

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