Skip to main content Go to search Go to main navigation
Menu

180° pipe bends, Type 3 | Standard radius

// 180° pipe bends, Type 3, for pipe assemblies requiring a complete change of direction

Filter products

180° pipe bend, Type 3: The double bend for perfect changes of direction

When a pipe run needs to change direction completely or a handrail requires a neat finish, the 180° pipe bend, Type 3, is the professional solution. Often referred to as a double bend, U-bend or reverse bend, this component enables a 180-degree turn in the tightest of spaces. At FeNau GmbH, you can obtain these seamless steel fittings in the tried-and-tested Type 3 (standard radius) and in a raw finish – perfect for further processing by welding.

Type 3 for 180° bends: What do I need to bear in mind?

The Type 3 standard (DIN 2605 / EN 10253) also applies to double bends, which means a radius of approx. 1.5 times the external diameter. However, another dimension is crucial when planning your design: the centre-to-centre distance (the distance between the centres of the two pipe ends).

  • Rule of thumb: The centre-to-centre distance is approximately 3 times the pipe diameter.
  • Example: For a 42.4 mm pipe (1 ¼ inches), the distance between the pipe centres is approximately 120–128 mm.
  • Advantage: This standardised distance ensures that the pipes run parallel, which is particularly important when constructing heating coils or double handrails.

Applications: From balustrades to heat exchangers

Our customers in the trades and industry use the 180-degree welded elbow in a variety of ways:

  • Balustrade construction: As an elegant, injury-free finish (‘loop’) at the end of a handrail.
  • Plant engineering: As a deflection bend in pipework to reverse the flow of media.
  • Heat engineering: For the construction of pipe coils, coils and heat exchangers.

As we supply the steel elbow in its raw (black) state, you can weld it directly onto your structure and then have it galvanised or coated as a single component.


Frequently asked questions about 180° U-bends (FAQ)

Can I cut the 180° bend to size?

Yes, as the steel is highly weldable, you can easily cut the elbow to size (e.g. with an angle grinder or band saw), if, for example, you only need a 135° or 160° angle or wish to adjust the leg length.

Why can’t I find any ‘welded’ 180° bends?

Due to the significant deformation involved, 180° bends are manufactured almost exclusively as seamless pipe bends. This ensures that the material does not tear on the inside (compression) or the outside (tension). At FeNau, you therefore receive the highest industrial quality.

How do I protect the double bend from rust?

As the item is supplied as untreated steel, it is susceptible to rust. It is intended as a “semi-finished product”. Corrosion protection (painting, galvanising) is usually only applied once you have finished welding the bend into your railing or structure.

Ensure a perfect finish. Buy 180° pipe bends, Type 3, now directly from the FeNau warehouse.