90-degree elbow (welded fittings, Type 5)
// 90° pipe elbow, Type 5 DIN, for generous pipe routing and secure connections.
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Available, : Lieferzeit 5-10 Werktage
Available, : Lieferzeit 5-10 Werktage
For optimised flow conditions and generous radii: Discover our 90° stainless steel pipe bends, Type 5 (DIN 2605 / EN 10253 Type 5D). These welded fittings are characterised by their particularly wide radius ($r \approx 2.5 \times d$) and minimise friction losses in pipework.
The geometry: Type 5 (Type 5D) explained
In contrast to the standard (Type 3), this elbow is significantly more elongated. This ensures smoother bends.
The radius comparison
- Type 3 (standard): $r \approx 1.5 \times d$ (e.g. for a 42.4 mm pipe = approx. 63.5 mm radius).
- Type 5 (shown here): $r \approx 2.5 \times d$ (e.g. for a 42.4 mm pipe = approx. 107 mm radius).
Planning note: This bend requires significantly more space during installation, but offers technical and aesthetic advantages in return.
When should Type 5 be used?
The wide radius is no coincidence, but fulfils specific technical requirements:
1. Fluid dynamics
The gentle curve drastically reduces flow resistance (zeta value). This means:
- Lower pressure loss in the pipe.
- Less turbulence and material erosion.
- Ideal for pneumatic conveying pipes (granules, powders) or high-speed systems.
2. Design & Architecture
Architects often use Type 5 as a stylistic device:
- Creates a ‘soft’, elegant line for handrails.
- Appears less technical/angular than the standard bend.
- Often used in high-end yacht railings or furniture designs.
Available versions
We offer Type 5 bends as welded fittings (for welding) in the following variants:
- Materials: V2A (1.4307) for standard applications and V4A (1.4404) for corrosive environments.
- Surface finish: Usually unpolished (industry standard). (If you require polished Type 5 bends, please enquire about these separately or check the product details.)
Please note: Due to the large radius and the amount of material used, Type 5 elbows are priced higher than standard elbows.