Flow funnels for connection to coiled half tubes
Our seamless versions give you a flow-optimised transition from half tube to round tube.
Advantages of our flow funnels
Seamless security
Optimised thermal management
Efficient assembly
Highest level of certification
Only the precise coordination of material and isometrics lays the foundation for the smooth operation of your plant. Discover the technical specifications that make our flow funnels the benchmark for quality in modern tank and apparatus construction.
| Installation | The flow funnel can be installed quickly and easily without cutting open the bends: |
| – Preparation of the half tube coil | |
| – Placing and welding on the flow funnel | |
| – Individual further connection with bends, flanges etc., depending on the design and construction of the vessel | |
| Materials | Steel grade P235GH according to EN 10216–2 |
| Stainless steel | |
| Material number 1.4301, 1.4404, 1.4541, 1.4571 according to EN 10216–5 | |
| Other materials on request | |
| Heat treatment | P235GH |
| Normalised, sandblasted | |
| 1.4301, 1.4404, 1.4541, 1.4571 | |
| Solution-annealed, pickled, passivated | |
| Certification | e.g. inspection certificate 3.1 according to EN 10204 in line with AD2000‑W 4 (P235GH) or |
| e.g. AD2000‑W 2 (1.4301, 1.4404, 1.4541 and 1.4571) for the starting tube | |
| Factory certificate 2.1 according to EN 10204 for the final product | |
| Identification | Applied permanently by dot-peen marking or electrolytically, with manufacturer's mark, material designation, and heat number |
Advice on flow funnels
alloys – we make anything
possible.
The manufacturing process for our flow funnels
Whilst conventional flow funnels are often made from sheet metal that has been press-formed to shape and then welded, Karl Theis consistently opts for manufacture from high-quality, seamless steel and stainless steel tubes. The acceptable number of weak points: none.
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The process is based on the requirements of DIN 28127 and ensures that the dimensions comply with them exactly.
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Subsequent heat treatment (such as normalising for P235GH or solution annealing for stainless steel) produces a material microstructure capable of withstanding the highest loads.
- Each component is also permanently and uniquely marked by dot-peen marking or hard or soft stamping to ensure complete traceability.
Wherever media need to be kept at a precise temperature and conveyed safely, our flow funnels are the crucial link. They ensure a smooth flow between the coiled half tube and the round tube in sectors such as:
Tank construction
Apparatus construction
Plant engineering
Chemical industry
Facts about our flow funnels
What makes a good flow funnel?
Unrestricted flow – ensuring that heat and energy reach exactly where they are needed, without turbulence.
Uncompromising seamlessness – for maximum safety and pressure resistance in every one of your systems.
And finally, our century of experience in precision moulding and material processing.
