Les durites métalliques sont un élément indispensable dans les technologies modernes, face aux exigences élevées des réseaux de canalisations pour des fluides et des plages de température très variés.
Une grande flexibilité, ainsi qu’une excellente résistance à la pression et à la température caractérisent notre gamme de produits, permettant leur utilisation dans de nombreux secteurs : notamment les systèmes de chauffage, de plomberie et de climatisation, l’industrie pétrolière et gazière, l’industrie chimique et agroalimentaire, la construction mécanique, la construction navale, le secteur ferroviaire et l’ingénierie automobile.
Raisons de privilégier les durites métalliques par rapport aux canalisations rigides :
Des contraintes peuvent apparaître dans le réseau de canalisations, dues à :
des défauts d’assemblage
la dilatation thermique
des vibrations
des variations de pression
Pour compenser ces contraintes indésirables, les ensembles de durites métalliques présentent les avantages suivants :
pas de rupture des canalisations par fatigue
pas de fuite au niveau des raccords à bride
pas de difficulté de remplacement des tubes déformés par les hautes températures
Économies sur le montage et le démontage :
la préfabrication des tubes n’exige pas une grande précision
pas de travail de réglage nécessaire sur la durite
les défauts d’assemblage sont facilement corrigés
seule une partie de la canalisation doit être démontée
les éléments flexibles sont plus faciles à retirer et surtout à réinstaller
Il en résulte :
des économies significatives sur le montage et le démontage des réseaux de canalisations
une plus grande flexibilité dans la conception des guides de canalisations et lors de toute modification
Applications
Industrie sidérurgique, équipements de mesure et de régulation, équipements médicaux, aéronautique et astronautique, technologie des réacteurs, énergies alternatives (chaleur solaire, éoliennes, etc.)
Fluides transportés
Eau, eau chaude, vapeur, gaz, air, etc.
LUOYING
DN5-300
Up to 350bar
Metal hoses are an indispensable part of modern technology with its high demands on piping systems for a wide variety of media and temperatures.
Flexible Metal hose is a kind of flexible component which is used to conveying different kinds of mediums. It is composed by stainless steel bellow with one or more layers steel thread or steel strip mesh sleeve, two ends with joint or flange head.Stainle
This type of hose is also known as pump hose connectors. These hoses are sized to a specific length for attaching to pumps. Its flexible braided construction absorbs vibration to reduce wear and tear on equipment. To connect the pump connector hoses you n
Rubber expansion joints are mainly manufactured by manual wrapping of rubber sheets and fabric reinforced rubber sheets around a bellows-shaped product mandrel. Besides rubber and fabric, reinforced rubber and/or steel wires or metal rings are added for additional reinforcement. After the entire product is built up on the mandrel, it is covered with a winding of (nylon) peel ply to pressurize all layers together. Because of the labor-intensive production process, a large part of the production has moved to eastern Europe and Asian countries.
Some types of rubber expansion joints are made with a molding process. Typical joints that are molded are medium-sized expansion joints with bead rings, which are produced in large quantities. These rubber expansion joints are manufactured on a cylindrical mandrel, which is wrapped with bias cut fabric ply. At the end the bead rings are positioned and the end sections are folded inwards over the bead rings. This part is finally placed in a mold and molded into shape and vulcanized. This is a highly automated solution for large quantities of the same type of joint.
New technology has been developed to wind rubber and reinforcement layers on the (cylindrical or bellows-shaped) mandrel automatically using industrial robots instead of manual wrapping. This is fast and accurate and provides repeatable high quality. Another aspect of using industrial robots for the production of rubber expansion joints is the possibility to apply an individual reinforcement layer instead of using pre-woven fabric. The fabric reinforcement is pre-woven and cut at the preferred bias angle. With individual reinforcement it is possible to add more or less fiber material at different sections of the product by changing the fiber angles over the length of the product.
Piping components can be bolted together between flanges. Flanges are used to connect pipes with each other, to valves, to fittings, and to specialty items such as strainers and pressure vessels. A cover plate can be connected to create a "blind flange" Flanges are joined by bolting, and sealing is often completed with the use of gaskets or other methods. Mechanical means to mitigate effects of leaks, like spray guards or specific spray flanges, may be included. Industries where flammable, volatile, toxic or corrosive substances are being processed have greater need of special protection at flanged connections. Flange guards can provide that added level of protection to ensure safety.
Fasteners are used for fastening and securing materials such as wood, metal, plastic, or concrete. They include nuts and bolts, threaded rods, structural bolts, machine screws, wedge anchors, washers, rivets, and more in a variety of types and sizes, including metric and inch.
In systems that have a media with significant particulate content (i.e. flash or catalyst), a barrier of ceramic fiber can be utilized to prevent corrosion and restricted bellows flexibility resulting from the accumulation of the particulate. Purge connectors may also be utilized to perform this same function. Internal liners must also be included in the design if the expansion joint includes purge connectors or particulate barriers.
A gasket is a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. It is a deformable material that is used to create a static seal and maintain that seal under various operating conditions in a mechanical assembly.