Introduction
Tube end processing is a crucial step in tube manufacturing that modifies the shape or surface of tube ends. This can offer various benefits, such as:
- Adaptation to other tubes or components
- Improvement of sealing performance or strength
- Achieving a specific design or aesthetic
We master various tube end processing methods, including:
- Expanding: Widening the tube diameter at the end
- Reducing: Narrowing the tube diameter at the end
- Collaring: Creating a conical shape at the end
- Flanging: Bending the edge outwards or inwards
- Upsetting: Compacting the material at the end
These methods are typically performed with specialised machinery, ensuring high precision and quality. We can also deburr the tube after cutting to remove sharp edges. Furthermore, we offer beading as part of tube end processing.
Beading in Tube End Processing
Beads are annular depressions or elevations that make the tube more stable and resilient. They can also serve as sealing or connecting elements. Beads are usually produced using specialised machines that cold-form the tube. We can offer you various types of beading, such as:
- Beads according to DIN 3021-3: These beads have a trapezoidal shape and are used for fuel lines.
- Beads according to DIN 71550: These beads have a semi-circular shape and are used for brake lines.
- Customised Special Forming: We can also provide individual solutions for your specific requirements.
NovaNox® is your expert for customised tube end processing with the highest quality and precision. Please feel free to contact us for a complimentary quote.
DIN Flanges in Tube Processing
DIN flanges are standardised connection elements that enable tubes to be joined with other tubes or components. They consist of a round or angular flange ring with bores for screws or bolts. There are various types of DIN flanges, such as:
- Flat Flanges: These flanges have a flat sealing surface and are used for low pressures.
- Welding Neck Flanges: These flanges have a welded neck and are used for high pressures.
- Blind Flanges: These flanges have no bores and are used to seal pipelines.
We can machine, drill (smooth or threaded), blast, coat, and mark DIN flanges according to your specifications. We use high-quality materials such as steel or stainless steel for our flanges. We can also accommodate other standards such as EN or ANSI.
Expanding and Reducing in Tube Processing
Among the most common tube end processing methods are expanding and reducing. Expanding involves widening the end of a tube using a conical mandrel or roller to achieve a larger diameter. This may be necessary, for example, to connect one tube to another or to insert a seal.
Reducing involves tapering the end of a tube using a conical punch or roller to achieve a smaller diameter. This may be necessary, for example, to weld one tube to another or to attach a cutting ring fitting.
Expanding and reducing can take different forms depending on the requirements, such as flanges, beads, sealing cones, or threads. The quality and precision of these forming processes depend on various factors, such as the tube material, the degree of forming, and the tooling.
NovaNox® is your competent partner for expanding and reducing tube ends. We possess state-of-the-art technology and extensive experience in this field. We can process and finish any tube dimensions and materials to the highest standard. We would be pleased to advise you on the optimal solution for your application.
Cutting Ring Fittings in Tube End Processing
In addition to expanding and reducing, NovaNox® also offers other tube end processing methods, such as cutting ring fittings and male and female couplings.
Cutting ring fittings are a fluid-tight connection technology for tubes, suitable for the highest pressures. A cutting ring is pushed onto the end of a tube and secured to a screw-in stud with a union nut. The cutting ring cuts into the tube, forming a durable seal.
Male and female couplings are components used for the continuous connection of two tubes or cables with internal threads. A nipple with an external thread is screwed into the coupling and sealed with a sealant. Male couplings have an internal thread at both ends, while female couplings have an internal thread at one end and an external thread at the other.
NovaNox® offers cutting ring fittings, as well as male and female couplings, in various sizes, materials, and designs. We guarantee high quality, safety, and reliability for our products. We would be pleased to advise you on the appropriate solution for your application.
