Flange
Midas is a manufacturer of all types of pipe flanges and has been supplying flanges to the petrochemical, power generation and water plant industries since its inception. Our mission is to exceed our customers' expectations for service and quality and strive to meet the highest standards in the industry. Today, we are proud to offer a wide variety of flange types. Whether you require a custom flange or a specialized machined component, our experts can meet your needs.
Midas specializes in manufacturing all types of flanges, including carbon steel, stainless steel, and alloy options. Styles we offer slip-on flanges, socket weld flanges, thread flanges, weld neck flanges and blind flanges, and custom flanges in sizes from 1/2″ to 203″, catering to diverse industrial needs with precision and quality. All our flanges comply with ANSI, MSS, AWWA, DIN, UNI, JIS, BS, SABS, EN1092, GOST standards, also we can produce according to customers’ drawings.
Slip-on Flanges: Slip-on flanges are circular components designed to slip over the end of a pipe and are then welded around the joint, both inside and outside. They provide a simple and cost-effective means of joining pipes and fittings, often used in low-pressure and moderate-temperature applications. Commonly applied in water and wastewater systems, as well as in various industrial pipelines, slip-on flanges are favored for their ease of installation and alignment.
Socket Weld Flanges: Socket weld flanges are flanges that fit into a pipe socket and are then welded around the joint, offering a robust and durable connection. They are ideal for high-pressure and high-temperature environments, such as in the oil and gas industry, chemical processing, and power generation. Socket weld flanges ensure a leak-tight seal and are used in applications where strength and reliability are critical.
Thread Flanges: Thread flanges are flanges with internal threads that allow them to be screwed onto a pipe with matching external threads. They are used to provide a secure and easily dismountable connection without the need for welding. Commonly applied in low-pressure systems, such as in water and gas pipelines, thread flanges are often used in situations where frequent disassembly is required.
Weld Neck Flanges: Weld neck flanges are flanges with a long, tapered neck that is welded to a pipe, providing a strong, smooth transition between the pipe and the flange. They are designed for high-pressure and high-temperature applications, such as in power plants and petrochemical industries. Weld neck flanges are preferred for their ability to handle significant stresses and thermal cycling, ensuring long-term reliability and performance.
Loose Flanges: Loose flanges are flanges that are not permanently attached to the pipe or fitting but are instead designed to be used with a gasket and bolted connections. They are used to create a removable joint that can be easily accessed for maintenance or inspection. Loose flanges are commonly applied in applications where frequent disassembly is needed, such as in maintenance areas or temporary piping systems.
Blind Flanges: Blind flanges are solid flanges with no central hole, used to seal the end of a pipeline or vessel. They are designed to provide a tight seal and prevent the flow of fluids or gases from exiting the pipe. Blind flanges are commonly used in applications such as pressure vessels, valve closures, and pipeline terminations, where a permanent or semi-permanent seal is required.
Industrial flanges manufactured in a variety of different material grades:
Midas is best known for carbon steel or stainless steel flanges, but we actually offer over a dozen different material grades. The most popular material grade is made from carbon steel. Midas not only offers carbon steel pipe flanges and flange accessories, but also stainless steel flanges for a variety of projects. Plate flanges can be ordered for water plant and petrochemical applications. Bar flanges and forged specification flanges can also be manufactured to sizes from our catalog.
Stainless Steel —> A 182 / A 240, SA 182 / SA 240
Carbon Steel —> ASTM A105, ASME A105
ASTM A266 GR.1, GR.2, GR.3, GR.4
ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2
ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70
Alloy steel —> ASTM / ASME A182 F1 / F5 / F9 / F11 / F22 / F91
1. What is a flange?
A flange is a mechanical component used to connect pipes, valves, or other equipment in a piping system. It typically features a flat surface with holes for bolts, allowing it to be securely attached to another flange or equipment.
2. What are the different types of flanges?
Common types include slip-on flanges, socket weld flanges, thread flanges, weld neck flanges, loose flanges, and blind flanges. Each type serves specific purposes and applications based on pressure, temperature, and ease of maintenance.
3. How do I choose the right flange for my application?
Select a flange based on factors such as pressure and temperature requirements, the type of connection needed, and the material compatibility. Consider the specific application environment and whether you need a permanent or removable joint.
4. What materials are flanges typically made from?
Flanges are commonly made from materials such as carbon steel, stainless steel, alloy steel, and various other metals. The choice of material depends on the application's pressure, temperature, and corrosion resistance requirements.
5. How are flanges installed?
Flanges are installed by aligning the flange faces, placing a gasket between them, and bolting them together. Proper alignment and torque of the bolts are crucial to ensure a leak-tight seal and proper functioning.
6. What is the difference between a slip-on flange and a weld neck flange?
A slip-on flange is easier to install and is used in lower pressure applications, while a weld neck flange provides a stronger, more durable connection, making it suitable for high-pressure and high-temperature environments.
7. Can flanges be used in high-temperature applications?
Yes, certain flanges, such as weld neck and socket weld flanges, are designed to withstand high temperatures and pressures. Be sure to select the appropriate material and flange type for your specific temperature requirements.
8. What is a blind flange used for?
A blind flange is used to close the end of a pipeline or vessel, effectively sealing it off from the system. It prevents the flow of fluids or gases and is commonly used for maintenance, pressure testing, or to seal off unused piping sections.
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