HellermannTyton hose fittings Germany HellermannTyton model HellermannTyton price

HellermannTyton hose fittings connect different hydraulic components (pumps, delivery lines, directional valves, shut-off valves, hydraulic motors, hydraulic cylinders, and some auxiliary components such as level gauges, thermometers, pressure gauges, etc.) to form a closed-loop hydraulic system. Hydraulic pipe fittings are accessories that serve a connecting role in this process. Hydraulic pipe fittings are detachable connectors between oil pipes and oil pipes, or between oil pipes and hydraulic components. They should meet requirements such as convenient assembly and disassembly, reliable connection, reliable sealing, small external dimensions, high oil flow capacity, low pressure loss, and good manufacturability. Hydraulic pipe fittings are widely used in various aspects of our lives. They are mainly used in hydraulic piping systems in industries such as energy, petrochemicals, electric power, ships, automobiles, rail transit, mining, metallurgy, steel plants, offshore engineering, and construction machinery. Construction machinery is where hydraulic pipe fittings are most frequently used.

HellermannTyton hose fitting forming methods

Stamping forming of elbows is the earliest forming process applied to mass production of seamless elbows. In the production of common specification elbows, it has been replaced by hot pushing or other forming processes. However, for certain elbow specifications, due to small production quantities, excessively thick or thin wall thicknesses, or special product requirements, it is still in use. Stamping forming of elbows uses pipe blanks with an outer diameter equal to that of the elbow, and a press is used to directly press and form them in a die. Before stamping, the pipe blank is placed on the lower die, the inner core and end die are inserted into the pipe blank, and the upper die moves downward to start pressing. The elbow is formed through the constraint of the outer die and the support of the inner die. Compared with the hot pushing process, the appearance quality of stamping forming is inferior. During the forming of stamped elbows, the outer arc is in a tensile state, and there is no excess metal from other parts to compensate, so the wall thickness at the outer arc is reduced by approximately 10%. However, due to its suitability for single-piece production and low cost, the stamped elbow process is mostly used for the manufacture of small-batch, thick-walled elbows. Stamped elbows are divided into cold stamping and hot stamping. Cold stamping or hot stamping is usually selected based on material properties and equipment capabilities. The forming process of cold-extruded elbows uses a dedicated elbow forming machine. The pipe blank is placed in the outer die. After the upper and lower dies close, the pipe blank moves along the gap reserved between the inner and outer dies under the push of the push rod to complete the forming process. Elbows manufactured using the inner and outer die cold extrusion process have a beautiful appearance, uniform wall thickness, and small dimensional deviations. Therefore, this process is mostly used for forming stainless steel elbows, especially thin-walled stainless steel elbows. This process requires high precision for the inner and outer dies and has relatively strict requirements for the wall thickness deviation of the pipe blanks. Medium plate welding fabrication involves using a press to make half of the elbow profile from medium plate, and then welding the two profiles together. This process is generally used to manufacture elbows above DN700.

HellermannTyton hose fitting material classification

1. Austenitic stainless steel: The matrix is mainly composed of austenite structure (γ phase) with a face-centered cubic lattice. It is non-magnetic and is mainly strengthened by cold working (which may lead to certain magnetism). 2. Austenitic-ferritic (duplex) stainless steel: The matrix has both austenitic and ferritic two-phase structures (the content of the minor phase is generally greater than 15%). It is magnetic and can be strengthened by cold working. 3. Ferritic stainless steel: The matrix is mainly composed of ferrite structure (α phase) with a body-centered cubic crystal structure. It is magnetic, generally cannot be hardened by heat treatment, but can be slightly strengthened by cold working. 4. Martensitic stainless steel: The matrix is martensitic structure. It is magnetic, and its mechanical properties can be adjusted by heat treatment. 5. Precipitation-hardening stainless steel: The matrix is austenitic or martensitic structure, and it can be hardened (strengthened) by precipitation hardening (also known as age hardening) treatment. 6. Stainless steel: 1Cr18Ni9Ti 0Cr18Ni9 00Cr19Ni10 0Cr17Ni12Mo2Ti 00Cr17Ni14Mo2 304 304L 316 316L, etc. 3. Stainless steel elbows have certain corrosion resistance (to oxidizing acids, organic acids, cavitation), heat resistance, and wear resistance. They are typically used as equipment materials in power stations, chemical industry, petroleum, etc. Stainless steel elbows have poor weldability. Attention should be paid to welding processes, heat treatment conditions, and the selection of suitable welding electrodes.

HellermannTyton hose fitting classification

Hose fitting types include: one-piece hose fittings, crimped hose fittings, internally locked hose fittings, detachable hose fittings, etc. One-piece hose fittings are a type of high-quality flexible pipeline in modern industrial piping systems, mainly composed of bellows, braided sleeves, and fittings. Hose fittings are mainly applied in gas distribution systems and gas pressure regulating stations. Their function is to electrically insulate and isolate sections of gas distribution pipelines and between gas pressure regulating stations and distribution pipelines, protecting them from electrochemical corrosion and extending service life.

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