HIFLEX hose fittings Germany HIFLEX model HIFLEX price

HIFLEX hose fittings are a type of high-quality flexible piping in modern industrial pipeline systems. They mainly consist of bellows, a wire braid, and fittings. The inner tube is a thin-walled stainless steel bellows with a spiral or annular shape. The wire braid on the outer layer of the bellows is woven from stainless steel wire or steel strip according to specific parameters. The fittings or flanges at both ends of the hose are matched to the fittings or flanges of the customer's piping. The bellows of the hose are formed by high-precision plastic working of extremely thin-walled seamless or longitudinally welded stainless steel pipes. Since the elastic characteristics of the bellows profile determine that the hose has good flexibility and fatigue resistance, it can easily absorb cyclic loads from various motion deformations, especially having the ability to compensate for large displacements in pipeline systems. Media visualization, process automation.

HIFLEX hose fitting applications

Pipe fittings are connection tools between pipes and are detachable connection points between components and pipes. They play an indispensable and important role in pipe fittings and are one of the two main components of hydraulic piping. Pipe fittings are used for straight connections such as instruments, with connection forms including socket weld or threaded connections. They are mainly used for small-diameter low-pressure pipelines, for parts that require frequent assembly and disassembly, or as final adjustments for pipelines using threaded fittings. The structural form should preferably adopt a metal-to-metal contact sealing structure. Gasket sealing structures are typically used in general pipelines transporting water, oil, air, etc., and are manufactured from malleable cast iron. In addition, usage requirements and price are also factors considered during selection. There are many types of pipe fittings; commonly used pipe fittings can generally be divided into hard pipe fittings and hose fittings. If classified by the connection method between the fitting and the pipe, hard pipe fittings include flare type, compression type, and welded type, while hose fittings are mainly crimped rubber hose fittings. The connection methods between pipes and fittings in hydraulic systems also differ; the pipe insertion end uses connecting threads. Taper threads rely on their conical body tightening and use materials such as PTFE for sealing operations, mainly applied in medium and low-pressure hydraulic systems. Fine-pitch threads have very good sealing effects and are often used in high-pressure systems, but they require combination washers or O rings for end-face sealing. Copper washers are sometimes used, which are more suitable for pipes with thicker walls. Its main components include the fitting body, sleeve, and nut. During use, the fitting body is embedded into the target, and the aforementioned washers are used to seal the end face. Rubber sealing is used between the fitting body and the sleeve, and spherical sealing is sometimes used. Since pipe fittings are detachable connection elements, in addition to meeting requirements for normal connection stability, strong sealing, reasonable dimensions, low pressure loss, and good manufacturability, they must also meet the requirement for convenient assembly and disassembly. Therefore, do not underestimate these small pipe fittings, because only their existence supports the entire hydraulic system.

HIFLEX hose fitting cleaning

To ensure the cleanliness of the lubrication system and supply clean grease to the bearings of mechanical equipment, pre-installed pipelines must be removed and cleaned. Cleaning methods include kerosene cleaning and pickling. Objects and methods for kerosene cleaning: copper pipes, stainless steel pipes; steel pipes that have been pickled before pre-installation and have no rust or iron oxide scale on the inner wall; pipe fittings contaminated during pre-assembly. Remove the pipes and fittings that need cleaning. Wipe the inside of the pipes clean with a cloth soaked in kerosene. Soak both ends and the fittings in kerosene for cleaning. Then coat the inside of the pipes with machine oil or fill them with grease, and seal both ends tightly for installation. There must be no visually visible contaminants after cleaning. Special attention must be paid to thoroughly cleaning the welding slag on the inner wall of welds. During disassembly, transportation, and pickling, take care not to damage the pipelines, threads, and sealing surfaces. Use tape or plastic tubes to plug the openings. Threaded parts should be protected with acid-resistant materials such as plastic tape or rubber tape, or dry oil should be applied to the threads after degreasing and water washing before rust removal in acid solution to prevent acid erosion. During pickling, take care not to cause the matching marks on the pipes to disappear or become blurred.

HIFLEX hose fitting advantages

High strength: According to the principle of cold work hardening of steel, the strength of the straight threads rolled on the reinforcing bars is significantly improved, so that the tensile strength of the straight thread joints is higher than that of the base material of the reinforcing bars. Stable performance: The connection process is not affected by the skill level of workers, so the performance is stable. Fast connection speed: Because off-site prefabrication and on-site assembly connection methods are adopted, reinforcing bars with prefabricated threads can be massively prefabricated and stored in the rebar storage yard. When the construction schedule is tight, only additional assembly workers need to be added at the construction site. Easy management: There will be no mismatch between sleeves and reinforcing bars, and inspection is relatively convenient. Simple operation: Ordinary workers can become skilled workers after a few hours of learning. Significant economic and social benefits: Shorten construction cycles, improve engineering quality, reduce energy consumption, benefit environmental protection, reduce equipment investment, and have lower additional costs, resulting in significant economic and social benefits.

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