The flange is a part that connects the pipe and the pipe to each other and is connected to the pipe end. There are holes on the flanges, and bolts make the two flanges tightly connected. The flanges are sealed with gaskets. The flange is divided into threaded flanges and welding flanges. And the flange is a disc-shaped part, the most common in pipeline engineering, flanges are used in pairs and matching flanges on the valve. In pipeline engineering, flanges are mainly used for pipeline connection. In the pipelines that need to be connected, a flange plate is installed in various ways. The low-pressure pipeline can use the wire connection flange, and the welding flange is used for the pressure above 4 kg. A gasket is added between the two flanges and then tightened with bolts. Flanges with different pressures have different thicknesses and use different bolts. Hebei Sanvo is one of the quality pipe flange suppliers, manufacturers, factories, and exports, and mainly supplies carbon steel flanges and stainless steel flanges. We supply ANSI / ASME Flanges, BS Flanges, and DIN Flanges, etc. The most common specification for carbon steel and stainless steel flange is ANSI B16.5 / ASME B16.5.
This guide answers all the questions you have about flanges. If you have been looking for information about steel flanges, look no further.
You will find the most direct, yet detailed answers to basic questions, you often ask about carbon steel flanges and stainless steel flanges.
Without further ado, here we go:
The flange is a part that connects between shaft and shaft and is used for connection between pipe ends; it is also useful for flanges on the inlet and outlet of equipment for connection between two equipment, such as reducer flange. The flange connection or flange joint refers to a detachable connection in which flanges, gaskets, and bolts are connected to each other as a set of combined sealing structures. Pipe flange refers to the flange used for piping in the pipeline installation and refers to the inlet and outlet flanges of the equipment when used on the equipment. There are holes on the flanges, and bolts make the two flanges tightly connected. The flanges are sealed with gaskets. The flange is divided into the threaded flange, welding flange, and clamp flange. Flanges are used in pairs, wire flanges can be used for low-pressure pipelines and welded flanges for pressures of more than four kilograms. A gasket is added between the two flanges and then tightened with bolts. The thickness of flanges with different pressures is different, and the bolts they use are also different.
When water pumps and valves are connected with pipelines, parts of this equipment are also made into corresponding flange shapes, which are also called flange connections. All connecting parts that are connected by bolts on the periphery of two planes and are closed at the same time are generally called "flanges", such as the connection of ventilation pipes. These kinds of parts can be called "flange parts". But this kind of connection is only a part of the equipment, such as the connection between the flange and the water pump, it is not good to call the water pump "flange parts". Smaller ones, such as valves, can be called "flange parts".
Threaded flanges are used for low-pressure small diameters pipes, and welding flanges are used for high-pressure and low-pressure large diameters pipes. The thickness of flanges and the diameter and number of connecting bolts are different for different pressures.
(1) There are a variety of materials for pipe flanges to choose from to meet various pipeline needs.
(2) Flanges have a variety of connection methods to meet the needs of pipelines.
(3) International pipe flange standards mainly have two systems, namely the European pipe flange system represented by German DIN (including the former Soviet Union) and the American pipe flange system represented by American ANSI pipe flanges. In addition, there are Japanese JIS pipe flanges, but they are generally only used in public works in petrochemical plants, and they have little international impact.
The flange connection is easy to use and can withstand greater pressure. In industrial pipelines, flange connections are widely used. In the home, the pipe diameter is small, and it is low pressure, and the flange connection is invisible. If it is in a boiler room or production site, flanged pipes and equipment are everywhere.
In layman's terms, the function of the flange is to fix and seal the joints of the pipes. The following are the main functions of the pipe flange.
Because the flange has good comprehensive performance, it is widely used in basic projects such as chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, sanitation, plumbing, fire fighting, electric power, aerospace, shipbuilding, and so on.
Carbon steel flange, that is, the flange plate or the end flange connection piece whose body is made of carbon steel. The flanges containing carbon steel are called carbon steel flanges. Common materials are cast carbon steel grades WCB, forgings A105, or Q235B, A3, 10#, #20 steel, 16 manganese, 45 steel, Q345B, etc.
Usually in order to prevent rusty flange surface with electroplating layer (yellow zinc, white zinc, etc.), or brush anti-rust oil and spray anti-rust paint treatment.
Stainless steel flange simplified as SS flange, refers to the flanges made of stainless steel. Common material standards and Grades are ASTM A182 Grade F304/L and F316/L, with pressure ratings from Class 150, 300, 600, etc, and to 2500. It is used in more industries than carbon steel as stainless steel has better resistant performances in corrosion environments and always provides a good appearance.
Stainless steel flanges are usually divided into 304 stainless steel flanges, 304L stainless steel flanges, 316 stainless steel flanges, 321 stainless steel flanges, and 316L stainless steel flanges.
SANVO is one of the quality steel pipe flange suppliers, manufacturers, exporters, and mainly exports carbon steel flanges and stainless steel flanges.
SANVO is a leading steel pipe flange distributor for China leading manufacturers. Our flange products will meet your project standards, such as ASTM, ASME, API, BS, DIN, and JIS. We offer quick turnaround times, worldwide delivery, and competitive pricing, and over 20 years of combined experience.
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