NORIS Armaturen hose fittings Germany NORIS Armaturen model NORIS Armaturen price

NORIS Armaturen hose fittings consist of a nut, metal ring, sealing ring, and the body. They offer waterproofing, dirt resistance, explosion-proof protection, and corrosion resistance, becoming an essential part of industrial piping. In general, each pipeline has different requirements for metal hoses; plastic-coated metal hose tee fittings and suitable bimetallic composite pipes are used for different materials and construction environments.

NORIS Armaturen hose fitting precautions

1、Before cleaning the pipes with acidic detergent, it is necessary to clean off residual welding slag, stains, varnish and other substances from the surface to avoid chemical reactions that could cause unnecessary damage to the pipes and affect their future use. 2、To ensure the normal operation of hose fittings, special care must be taken to protect them. During transportation, disassembly, or pickling processes, extreme caution should be exercised to avoid damaging threads, piping, and sealing surfaces; the best method is to seal them with tape. 3、For all threaded parts of hose fittings, strong acid-resistant plastic tape or rubber tape should be used for protection. Alternatively, after direct water washing, apply dry oil to the threaded areas, allow it to dry completely, and then immerse in acid solution to remove rust spots. 4、During the pipe cleaning process, particular attention should also be paid to markings on the pipes, striving to preserve their integrity. Additionally, all welding tasks must be completed before pickling, and daily maintenance should include necessary protective measures for hoses.

NORIS Armaturen hose fitting features

Metal hose material: zinc alloy, hot-dip galvanized surface or stainless steel sheet. Metal hose waterproof rating: IP65. Features: dirt resistant, waterproof, corrosion resistant, seismic resistant. Compatible plastic hoses for metal hoses: hot-dip galvanized metal hoses, stainless steel metal hoses, plastic-coated metal hoses, explosion-proof metal hoses. One end connects to the metal hose, and the other end connects to junction boxes, main switch boxes, power distribution boxes, etc. The other end connects to threaded steel pipe metal hoses or mechanical flanges with external threads and metal hoses. DPJ line connection common tee fittings, 90-degree angled tee fittings, metal ring 45-angle tee fittings, pipe thread line connections to distribution boxes or machinery. Pipe thread metal hose ends manufactured to connect to machinery can also connect to external thread seamless pipes. The difference between these two types of tee fittings and other tee fittings is that they must match the pipe threads of the corresponding tee fittings.

NORIS Armaturen hose fitting functions

It connects the mesh sleeve to the entire corrugated pipe. Additionally, the fitting is a component that connects metal hoses to other piping accessories and equipment. It ensures the medium works normally within the pipeline system. The fitting material is usually the same as that of the corrugated pipe and mesh sleeve, mostly stainless steel. For transporting non-corrosive media, some larger diameter metal hoses can be made of carbon steel. Metal hose fittings for corrosive media (if designed) take appropriate measures to avoid contact with the medium and can also be made of carbon steel. Fitting structures are roughly divided into three categories: screw type, flange type, and quick-connect type. Under high working pressure conditions, fittings for metal hoses (explosion-proof pipes) with thread diameters less than 50 mm are mostly threaded. After tightening the threads, the inner and outer conical surfaces of the two fittings fit tightly to achieve sealing. The cone angle is typically 60 degrees, while 74 degrees is also useful. This structure offers good sealing performance, but concentricity of the two mating parts must be ensured during installation. To address issues of repeated disassembly, assembly, and concentricity often encountered in actual projects, fittings can also be designed to match conical surfaces with ball heads.

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