Bent pipe

classification

Classified by bending angle: Common types include 45 ° bend, 90 ° bend, 180 ° bend, etc. Different bending angles are suitable for different pipeline layouts and flow direction change requirements. For example, a 90 ° bend is commonly used at right angle bends in pipelines, while a 180 ° bend can completely reverse the direction of the pipeline.

According to the production process, it can be classified into hot bending pipes, cold bending pipes, push bending pipes, stamped bending pipes, etc. Hot bending pipes are formed by heating and bending pipes, suitable for large-diameter and thick walled pipes; Cold bending pipes are bent at room temperature and are commonly used for small-diameter pipes; Push bending is the use of molds to push pipes into the shape of bent pipes, which has good production efficiency and quality; Stamping bent pipe is a process of processing sheet metal or pipe into bent pipes through stamping technology, suitable for mass production of small and medium-sized bent pipes.

Classified by material: including metal bent pipes and non-metal bent pipes. Metal bend pipes, such as carbon steel bend pipes, stainless steel bend pipes, alloy bend pipes, etc., have the characteristics of good strength, high pressure resistance, and corrosion resistance (based on actual reports), and are widely used in industrial pipeline systems; Non metallic bent pipes, such as plastic bent pipes, rubber bent pipes, ceramic bent pipes, etc., have the advantages of good corrosion resistance (based on actual reports), light weight, and strong insulation. They are commonly used in industries such as building water supply and drainage, chemical engineering, and electronics.

characteristic

Changing pipeline direction: It is possible to bend straight pipelines at a determined angle and radius according to actual needs, so that the pipeline can bypass obstacles or change the direction of fluid flow, achieving a reasonable layout of the pipeline system.

Reduce fluid resistance: Compared with other pipe fittings that change the direction of the pipeline (such as elbows), elbows have a larger bending radius, allowing fluid to flow more smoothly inside the elbow. This can effectively reduce fluid resistance and pressure loss, and improve the transportation efficiency of the pipeline system.

Enhance pipeline flexibility: Bent pipes have a certain degree of flexibility, which can absorb the displacement and stress caused by thermal expansion, contraction, mechanical vibration, etc. of the pipeline to a certain extent, protect the safe operation of the pipeline system, and reduce the risk of pipeline rupture and leakage.

Application industry

Industrial pipeline system: In industries such as petroleum, chemical, power, metallurgy, etc., bent pipes are widely used in various process pipelines, such as crude oil transportation pipelines, chemical raw material transportation pipelines, steam pipelines, gas pipelines, etc. It can change the direction and slope of the pipeline according to the requirements of the process flow, making the pipeline system operate more reasonably and effectively.

Building water supply and drainage system: Bend pipes are commonly used in the water supply and drainage pipelines inside buildings, such as bathrooms, kitchens, balconies, etc., to change the direction of the drainage pipes, making drainage smoother, and also playing a role in aesthetics and space saving. In the fire protection system of some large buildings, bent pipes are also one of the excellent fittings, which can protect the smooth flow of fire water (based on actual reports) in the pipeline and ensure timely and effective fire extinguishing in case of a fire.

HVAC system: In HVAC systems, bent pipes are used for connecting and turning air conditioning ducts and water pipes. It can make air or water flow in the pipeline according to design requirements, achieving indoor air regulation and temperature control. In addition, bent pipes can also be arranged reasonably to reduce the noise and vibration of the air conditioning system, and improve the operational quality of the system.

Transportation industry: Bending pipes also have important applications in transportation vehicles such as automobiles, ships, and airplanes. For example, the exhaust pipes, fuel pipes, brake pipes, etc. of automobiles all require the use of bent pipes to achieve a reasonable layout and connection of pipelines; Bent pipes are also widely used in ships' bilge water pipes, ballast water pipes, fuel pipes, etc; The hydraulic pipes, fuel pipes, air conditioning pipes, etc. of airplanes also cannot do without bent pipes. The quality and performance of these bent pipes are directly related to the safety and quality of transportation vehicles.

Installation and maintenance

Installation requirements: When installing bent pipes, it is necessary to choose appropriate installation methods and tools based on design requirements and actual site conditions. Generally speaking, the installation of bent pipes should ensure a tight and secure connection with adjacent pipelines, without any leakage. At the same time, it should be noted that the bending direction and angle of the bent pipe should meet the design requirements to confirm the normal operation of the pipeline system. During the installation process, it is also necessary to avoid excessive external forces on the bent pipe to prevent deformation or damage.

Maintenance: The maintenance of bent pipes mainly includes regular inspections and cleaning. Regularly inspect the appearance of bent pipes for corrosion, wear, deformation, and other issues. If there are any problems, they should be promptly addressed. At the same time, it is necessary to keep the inside of the bend clean to prevent impurities, dirt, and other contaminants from accumulating inside the bend, which can affect the pipeline's transport capacity and fluid quality. For some bend pipes used in harsh environments, such as those working under high temperature, high pressure, strong corrosion, etc., corresponding protective measures should be taken according to the actual situation, such as coating with anti-corrosion (based on actual reports), installing thermal insulation materials, etc., to extend the service life of the bend pipes.