December 05, 2024
Definition and Structure
Definition: All flanged tees are extremely critical fittings in pipeline systems, with three openings that enable pipeline branching or merging operations. The openings are all equipped with flange structures, greatly facilitating docking with other pipelines, valves, and equipment.
Structural composition: Mainly composed of main and branch pipes. As the main channel of the main body, the supervisor undertakes the main transportation tasks; the branch pipe branches off from the main pipe. The flange section includes a flange plate and connecting bolt holes, and the specifications of the flange plate need to be accurately matched with the pipeline or equipment flange connected to it to ensure the stability and sealing of the connection.
Common materials
Carbon steel: Excellent strength and toughness, cost-effective, suitable for pipeline systems with conventional pressure and temperature, such as ordinary heating pipes.
Stainless steel: Strong corrosion resistance, used for transporting corrosive media or pipelines with high hygiene requirements, such as food processing pipelines.
Alloy steel: It has special properties such as high-temperature and high-pressure resistance and is used in high-temperature and high-pressure industrial pipelines, such as high-pressure steam pipes in oil refineries.
Installation points
Pre-installation inspection: Before installation, carefully check the appearance of the all flanged tee for cracks and other defects, whether the flange sealing surface is flat and the size is accurate, and verify whether the chemical composition of the metal material meets the standard.
Cleaning work: During installation, it is necessary to ensure that the connection between pipes and fittings is clean to facilitate the quality assurance of welding or flange connections.
Gasket installation: When connecting flanges, suitable gaskets should be selected according to the medium and working conditions.
Bolt tightening: Select the appropriate bolts and tighten them symmetrically according to the specified torque. To prevent the flange surface from deforming and leaking, tighten the four-bolt flange diagonally, and then gradually apply even force.
Maintenance and Upkeep
Regular inspections are essential: Check buried pipe fittings for anti-corrosion coatings, examine flange connections for leaks, and monitor for signs of deterioration regularly after installation. For example, urban gas pipelines should be periodically inspected for leaks at flange tees.
Repair and replacement: If any problems are found, they should be dealt with promptly. Minor damages, such as slight damage to the flange sealing surface, can be repaired by grinding. If there is severe corrosion or cracking, new pipe fittings need to be replaced. When replacing, follow the installation requirements to ensure quality.
Purpose
Pipeline branching: The opening of branches from the main water supply or drainage pipeline to provide and drain water to various locations or facilities is a crucial function of all flanged tees in the building water supply and drainage system. For example, in large buildings, the main hot water pipe is branched off into branch lines through flange tees and leads to the bathrooms and kitchens on each floor.
Pipeline convergence: All flanged tees can converge several fluid pipelines in one location during industrial procedures. A flanged tee enables the combination of two distinct types of raw-material liquid pipelines into the feed pipe of a reaction vessel in chemical production.
Connection Hub: Flanged tees are crucial elements utilized for the connection of diverse pipes and equipment on account of their flanged structure. This design allows for the connection of pipelines and equipment made from various materials and specifications. In petrochemical plants, all flanged tees can connect both metal and plastic pipes, accommodating a wide range of media within the pipeline system.
Summary
The maintenance of all flanged tees is crucial during pipeline operation. Strictly carry out all operations to guarantee their steady operation, pipeline systems' safe and effective operation, and the establishment of a strong basis for the operation of residential and industrial production facilities.
