STaeUBLI hose fittings Germany STaeUBLI model STaeUBLI price

STaeUBLI hose fittings consist of hollow screws, combination washers, and oil pipe connectors. They use hollow screws to compress two combination sealing gaskets onto the connector body for sealing. This pipe fitting is an elbow connector, characterized by the ability to freely adjust the direction of piping, easy installation, and small space occupation. The operating pressure is less than 32 MPa. Pipe fittings are detachable connectors used to connect pipes, between pipes, and hydraulic components. The connection threads of pipe fittings can be standard fine threads or tapered threads; tapered threads are commonly used in medium and low-pressure systems, while standard fine threads are commonly used in high-pressure systems.

STaeUBLI hose fitting installation

Dual-line main and branch pipes: from the lubrication pump to the oil inlet of all distributors, bearing relatively high pressure. Usually made of cold-drawn seamless steel pipes, with materials being 10 or 15 grade steel. Pipes with severe rust must not be used; oil supply pipes: from the distributor to the oil inlet of all lubrication points (bearing housing oil holes), bearing relatively low pressure. Usually made of drawn copper tubes, which are convenient for piping when bending. Cold-drawn seamless steel pipes or stainless steel pipes may also be used; flexible hose connectors are adopted when connecting moving parts. Piping should avoid areas with high-temperature radiation and cooling water spray, where temperatures are too high or too low, especially at flexible hose connectors; piping layout should not affect the operation of the host machine and other equipment, ensuring safety, reliability, convenience for work, observation, and maintenance; piping should be horizontal and vertical, neat and aesthetically pleasing. Minimize bends or small-angle bends, using large arcs to reduce oil flow resistance; in case of installation conflicts, smaller pipes should yield to larger ones, and low-pressure pipes should yield to high-pressure ones; pipes crossing each other must not touch and should be separated by a certain distance; joints of parallel pipes should be staggered to avoid affecting installation and disassembly; for ease of disassembly and cleaning, appropriate live joints should be installed, but sparingly to minimize leakage risks. Based on the determined piping path according to 8.2, measure the pipe length on-site, considering the impact of bend radius; account for the influence of various types of pipe fittings after connection; determine, cut, and pre-install pipe lengths segment by segment to facilitate adjustments based on actual conditions on-site. If all cuts are made at once, accumulated errors will make piping difficult; utilize short pipes wherever possible, extending them with straight-through connectors if necessary, but minimize the number of joints on pipe sections.

STaeUBLI hose fitting selection

A tee connector, literally speaking, is a pipe fitting with 3 openings. This type of hardware can have functions such as transporting and separating gas and liquid states. The application fields of tee connectors are very widespread, such as repairing water pipes under conditions where water supply cannot be stopped, and metal flexible piping systems. 1. Check suitability: The selection of tee accessories first depends on the actual situation of the water pipe. The shapes and specifications of three-way accessories vary. They are mainly divided into T shape or Y shape, equal-diameter and different-diameter nozzles. Equal-diameter nozzles have the same diameter for all three ports. Generally, the reducer is larger than the main pipe, and 2 pipes are smaller than the main pipe. You can choose according to your actual needs and select accessories compatible with the pipeline, preferably products from the same brand. 2. Check material: The materials of water pipe tee connectors mainly include carbon steel, cast steel, carbon structural steel, stainless steel, copper, aluminum alloy, plastic, argon arc casting, pvc, etc. Different materials have different prices and scopes of application; everyone can choose according to their own situation. Buy now, but regardless of the material, check whether it is qualified first. You can smell if there is any unpleasant odor. If purchasing carefully, you can check the product qualification mark. 3. Check appearance: When purchasing tee accessories, pay attention to their appearance, check for smoothness, whether the pipe wall thickness is uniform, and whether the wall surface is clean. Do not choose "accessory" pipes. If it is a threaded tee connector, also pay attention to whether the external thread development and pitch are uniformly distributed. 4. Check performance: Performance is the direct standard for product adoption; too low performance will affect service life. You can soak the tee connector in boiling water. If you find that the water pipe loses its original strength, then its performance is not very good.

STaeUBLI hose fitting forming method

Stamping forming elbows were the earliest forming process applied to mass production of seamless elbows. In the production of common specification elbows, they have been replaced by hot pushing or other forming processes. However, for certain specifications of elbows, due to small production quantities, excessively thick or thin walls, or special product requirements, they are 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 mold. 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 mold and the support of the inner mold. 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 stretched state, with no excess metal from other parts for compensation, 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 mold. After the upper and lower molds close, under the push of the push rod, the pipe blank moves along the gap reserved between the inner and outer molds to complete the forming process. Elbows manufactured using the inner and outer mold 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 molds and has strict requirements for the wall thickness deviation of the pipe blanks. Medium plate welding: Use a press to make half of the elbow profile from medium plates, and then weld the two profiles together. This process is generally used to manufacture elbows above DN700.

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