Norres hose connectors Germany Norres models Norres prices

Norres hose connectors are widely used in high-pressure piping applications in industrial fields, such as shipbuilding, offshore oil, metal processing, and mining. Flare-type pipe fittings are suitable for hydraulic, lubrication, high-pressure water flushing, and high-pressure air pipelines. Flare-type pipe fittings have been certified by many auditing bodies; they offer high reliability, inherent cleanliness, and strong flexibility, with faster and simpler pre-processing assembly and installation. Flare connections require no welding, saving subsequent processes such as pickling and flaw detection. Flare-type pipe fittings are a type of quick connector suitable for various pipe fittings and pipes with nominal pressures not exceeding 32MPa. Introduction by flare connection manufacturers: widely used in industries such as oil refining, chemical, light industry, textile, national defense, metallurgy, aviation, automotive, pharmaceutical, machinery, shipbuilding, natural gas, and CNG refueling stations.

Norres hose connector material classification

1. Austenitic stainless steel: The matrix is mainly composed of austenite structure (γ phase) with a face-centered cubic lattice, non-magnetic, and strengthened primarily through cold working (which may induce some magnetism). 2. Austenitic-ferritic (duplex) stainless steel: The matrix contains both austenite and ferrite phases (the content of the minor phase is generally greater than 15%), is magnetic, and can be strengthened through cold working. 3. Ferritic stainless steel: The matrix is mainly composed of ferrite structure (α phase) with a body-centered cubic crystal lattice, 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, is magnetic, and its mechanical properties can be adjusted through heat treatment. 5. Precipitation-hardening stainless steel: The matrix is austenitic or martensitic structure, and can be hardened (strengthened) through 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 plants, and petroleum facilities. Stainless steel elbows have poor weldability; attention should be paid to welding procedures, heat treatment conditions, and the selection of suitable welding electrodes.

Norres hose connector working principle

1. The basic structure of this connector is relatively simple, consisting of only three basic parts: the connector body, the ferrule, and the nut. The main part is the ferrule, which is a metal ring with a cutting edge at the front. International standard GB3764-83 recommends a unified I shape for the cutting edge. 2. The ferrule, which provides the primary sealing function, moves axially along the inner conical hole of the connector body under the axial force of the tightening nut R. Simultaneously, the cutting edge end undergoes radial contraction under the radial reaction force R', eliminating the gap between the ferrule and the tube, causing the cutting edge to contact the tube surface. At this point, the tube no longer rotates; continuing to rotate the nut causes the ferrule cutting edge to firmly bite into the tube to ensure sealing. Another sealing element is the tight contact between the intersection line (edge) of the 13° chamfer at the ferrule cutting edge end and the outer circle, and the annular conical surface of the connector body, forming a sealing band. This is the main sealing area of the ferrule-type seal. The rear 86° conical surface of the ferrule undergoes radial contraction under the force of F, tightly gripping the connected tube, while the middle part bulges slightly. Thus, the ferrule has axial elastic deformation, which plays a beneficial role in ferrule sealing and preventing the tightening nut from loosening.

Norres hose connector classification

Can copper tubes use ferrule-type pipe fittings? Yes, copper tube connections can use ferrule-type pipe fittings. Common connectors for copper tube connections include: ferrule-type copper tube fittings; quick-connect copper tube fittings; flare-type copper tube fittings; u type copper tube fittings. Ferrule-type pipe fittings are sealed pipe fittings suitable for non-corrosive or corrosive media such as oil, water, and gas. The specification requirements for use with aluminum-plastic pipes are quite flexible. After connection to the pipeline, they feature reliable connections and good sealing performance, and are therefore widely adopted in systems such as oil refining, chemical, light industry, textile, national defense, metallurgy, aviation, and shipbuilding. They are also suitable for hydraulic transmission pipelines in various mechanical engineering and machine tool equipment. Ferrule-type pipe fittings belong to the category of hard-seal connectors, relying on the action of the nut and the body to compress the ferrule into the outer wall of the steel pipe to form a seal. They are generally used on high-pressure pipelines; steel pipes, copper pipes, and iron pipes are all applicable.

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