NEDERMAN hose connector Germany NEDERMAN model NEDERMAN price

NEDERMAN hose connectors are components in hydraulic systems that connect high-pressure oil hoses to other high-pressure oil hoses. Hydraulic pipe fittings can be further classified into hydraulic hoses, high-pressure ball valves, quick couplings, bite-type pipe fittings, welded pipe fittings, high-pressure hoses, transition pipe fittings, tee pipe fittings, non-standard pipe fittings, flared pipe fittings, right-angle pipe fittings, rotary pipe fittings, quick couplings, stainless steel pipe fittings, and copper fittings.

Advantages of NEDERMAN hose connectors

The ferrule, which serves as the primary sealing element in this type of fitting, moves axially along the inner tapered bore of the fitting body under the axial force exerted by the tightening nut R. Simultaneously, the cutting edge undergoes radial contraction due to the radial reaction force R', eliminating the gap between the ferrule and the tube and bringing the cutting edge into contact with the tube surface. At this point, the tube no longer rotates. Continuing to rotate the nut causes the ferrule's cutting edge to bite firmly into the tube, ensuring a seal. Another sealing interface is formed where the chamfer at the tip of the ferrule's cutting edge, specifically the intersection line between the 13° chamfer and the outer circle, makes tight contact with the annular conical surface of the fitting body, creating a sealing band. This is the primary sealing area for bite-type fittings. The conical surface at the tail of the ferrule, with an angle of 86°, undergoes radial contraction under the force F, tightly gripping the connected tube while slightly arching in the middle. This provides axial elastic deformation to the ferrule, which benefits both the sealing performance and the prevention of loosening of the tightening nut. Precision connection products such as bite-type fittings emerged after the Second Industrial Revolution and form the foundation of human scientific and industrial development. Manufacturers continuously engage in product research, design, and testing to develop compatible products that maximize market demand satisfaction and secure a competitive advantage.

Selection criteria for NEDERMAN hose connectors

1. Type of fluid and temperature (select quick couplings with body and seal materials suitable for the fluid type and temperature). The appropriate body and seal materials vary depending on the fluid. For example, for air applications, steel quick couplings are recommended; for water applications, choose brass or stainless steel. 2. Fluid pressure (select quick couplings with pressure ratings suitable for the fluid pressure). Fluid pressure is a key factor in selecting quick couplings. Hydraulic quick couplings are standardized in a series ranging from 5.0Mpa (51kgf/cm&²) to 68.6Mpa (700kgf/cm&²). The construction of the quick coupling varies according to its pressure resistance characteristics. 3. Construction of the automatic shut-off valve (select quick couplings with valve constructions suitable for the piping application). Valve constructions include double shut-off, single shut-off, and double open types. Note that except for the double shut-off type, fluid will flow out from the piping upon disconnection. 4. Operating environment of the quick coupling (select quick couplings with constructions and materials suitable for the operating environment). Consider the humidity, dust conditions, and corrosiveness of the environment when selecting the type of quick coupling, body material, and seal material. 5. Ensure that the connection threads of the selected quick coupling are consistent. When using products from different brands, it is best to use male and female ends from the same brand. If cross-brand usage is necessary, consult the supplier's technical personnel beforehand to confirm compatibility before use. 6. Installation shape and dimensions. Determine the model and material of the quick coupling, and specify the assembly shape and dimensions corresponding to the piping characteristics. Note that dimensions are related to fluid flow rate.

Function of NEDERMAN hose connectors

They connect the braided sleeve to the entire corrugated hose. Additionally, the connector serves as the component that links metal hoses to other piping accessories and equipment. It ensures the proper functioning of the medium within the piping system. The material of the connector is typically the same as that of the corrugated hose and braided sleeve, most commonly stainless steel. For transporting non-corrosive media, some larger-diameter metal hoses may be made of carbon steel. Connectors for metal hoses used with corrosive media (if designed accordingly) take appropriate measures to avoid contact with the medium and may also be made of carbon steel. Connector structures are broadly classified into three types: screw-type, flange-type, and quick-type. Under high-pressure operating conditions, connectors for metal hoses (explosion-proof hoses) with thread diameters less than 50 mm are mostly threaded. After tightening the threads, the inner and outer conical surfaces of the two connectors mate closely to achieve a seal. The cone angle is typically 60 degrees, though 74 degrees is also effective. 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 practical projects, connectors can also be designed to match conical surfaces with spherical heads.

Weidou Intelligent Technology specializes in selling German NEDERMAN oil hose connectors, NEDERMAN hose connectors, NEDERMAN pipe fittings, NEDERMAN pipe component connectors, NEDERMAN rotary joints, NEDERMAN metal connectors, NEDERMAN brass connectors, NEDERMAN stainless steel connectors, NEDERMAN plastic connectors, NEDERMAN hydraulic pipe fittings, NEDERMAN adapter connectors, NEDERMAN threaded pipe fittings, NEDERMAN straight-through connectors, NEDERMAN articulated connectors, and NEDERMAN bite-type connectors. All NEDERMAN products are original imports from Germany. We welcome inquiries and orders from customers.