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Stainless Steel Flange Temperature Fluctuations, Reliable Sealing
Jun 09, 2017

Flange (Flange) also known as flange or flange. A flange is a part that connects a pipe to a pipe and is connected to a pipe end. There are holes on the flange, the bolts make the two flanges tight. The flange is sealed with a gasket. Flange thread connection (wire) flange and welding flange. Generally stainless steel is also called stainless steel flange.

Flanges are a kind of disc-shaped parts, the most common in pipeline engineering, flanges are used in pairs. In piping, the flange is mainly used for pipe connections. In the need to connect the pipeline, a variety of installation of a flange, low-pressure pipe can use wire flange, 4 kg above the pressure of the use of welding flange. Add a gasket between the two flanges and fasten it with bolts. Different pressure flanges have different thickness and use different bolts.

Pumps and valves, in connection with the pipeline, these equipment and equipment of the local, also made the corresponding flange shape, also known as the flange connection. Any type of connection parts that are closed at the same time using two bolts at the same time are generally referred to as "flanges", such as ventilation ducts, which may be referred to as "flanged parts". But this connection is only a part of the equipment, such as the connection of the flange and the pump, it is not good to the pump called "flange parts." Relatively small, such as valves, etc., can be called "flange parts".

A gasket is a ring made of a material that produces plastic deformation and has a certain strength. Most of the gaskets are cut from non-metallic plates or made of professional factories in the specified size, the material is asbestos rubber sheet, asbestos board, polyethylene plate, etc .; also useful thin metal plate (white metal, stainless steel) asbestos And other non-metallic materials wrapped together made of metal gasket; there is a thin steel belt with the asbestos wound with a wound wound gasket. Ordinary rubber gasket for the temperature below 120 ℃ occasions; asbestos rubber gasket is suitable for water vapor temperature below 450 ℃, the oil temperature below 350 ℃, the pressure is less than 5MPa of the occasion, for the general corrosive Medium, the most commonly used is acid asbestos board. In high pressure equipment and pipes, the use of copper, aluminum, 10 steel, stainless steel made of lens or other shape of the metal gasket. High-pressure gasket and sealing surface contact width is very narrow (line contact), sealing surface and gasket processing high finish.

Low pressure and small diameter with wire flange, high pressure and low pressure large diameter are used welding flange, different pressure flange thickness and connection bolt diameter and quantity is different.

Flange application of flat welding steel flange: for the nominal pressure of not more than 2.5Mpa carbon steel pipe connection. Flat welding flange sealing surface can be made of smooth, concave and convex and tongue and groove three. Qingtian special smooth flat welding flange of the largest application, and more for the medium conditions are more moderate conditions, such as low-pressure non-purified compressed air, low pressure circulating water, it has the advantage of cheaper prices. Butt welded steel flange: for the flange and the pipe of the mouth of the welding, its reasonable structure, strength and greater steel, withstand high temperature and pressure and repeated bending and temperature fluctuations, sealing and reliable. Nominal pressure of 0.25-2.5Mpa of the butt weld flange with concave and convex sealing surface. Nylon ribs socket welding flange: commonly used in PN ≤ 10.0Mpa, DN ≤ 40 in the pipeline; loose sets of flanges: loose flange commonly known as live sets of flanges, split ring live sets of flanges, flanging sets Flange and butt welds.

Commonly used in medium temperature and pressure are not high and the media corrosive strong situation. Green water separation When the medium corrosive strong, the method of stainless steel flange

Stainless steel flanges

The parts of the blue contact medium (flanged short section) are corrosion resistant, high grade materials such as stainless steel and the like, while the outside is clamped with a lower ring of steel material such as carbon steel to achieve a seal. Overall flange: Is the flange and equipment, pipes, valves, etc. made of this type of equipment and valves commonly used. Flanges are a kind of disc-shaped parts, the most common in pipeline engineering, flanges are used in pairs. In piping, the flange is mainly used for pipe connections. In the need to connect the pipeline, a variety of installation of a flange, low-pressure pipe can use wire flange, 4 kg above the pressure of the use of welding flange. Add a seal between the two flanges and fasten it with bolts. Three-way hydraulic presses with different pressures have different thicknesses and use different bolts. Pumps and valves, in connection with the pipeline, these equipment and equipment of the local, also made the corresponding flange shape, also known as the flange connection. SEO is usually in the two planes in the surrounding use of bolted connections at the same time closed the connection parts, generally referred to as "flange", such as ventilation pipe connection, this type of parts can be called "flange parts." But this connection is only a part of the equipment, such as the connection of the flange and the pump, it is not good to the pump called "flange parts." Relatively small, such as valves, etc., can be called "flange parts".