Introduction:

Duplex steel flanges are a vital component in the oil and gas, petrochemical, and chemical industries. They are used to connect pipes, valves, and other equipment together to create a reliable and leak-free system. Duplex steel flanges are known for their high strength, excellent corrosion resistance, and durability. They are used in various industries where high resistance to stress corrosion cracking and pitting is required.

At Bullion Pipes, we are a leading manufacturer and supplier of duplex steel flanges. Our flanges are made from the highest quality materials and are designed to meet the strictest industry standards. We offer a wide range of duplex steel flanges to meet the needs of our customers.

Specification:

Duplex steel flanges are available in different specifications to meet the specific requirements of different industries. The most common specifications for duplex steel flanges are:

Material: Duplex steel flanges are made from different grades of duplex steel such as UNS S31803, UNS S32205, and UNS S32750.
Size: Flanges are available in different sizes, ranging from 1/2 inch to 48 inches.
Pressure rating: Flanges are designed to withstand different pressure ratings, ranging from 150 to 2500 pounds per square inch (PSI).
Facing type: Flanges can be manufactured with different facing types such as flat face, raised face, and ring joint face.

Types of Duplex Steel Flanges:

Duplex steel flanges come in a variety of types to meet the specific needs of different applications. Here are some of the most common types of duplex steel flanges:

Weld Neck Flanges: These flanges are designed to be welded to a pipe. They have a long tapered hub, which provides an excellent stress distribution on the pipe.

Slip-On Flanges: These flanges are easy to install and are ideal for low-pressure applications. They slide over the end of the pipe and are then welded in place.

Socket Weld Flanges: These flanges are designed to be welded to a pipe using a socket weld connection. They are commonly used in high-pressure applications.

Blind Flanges: These flanges are used to seal off the end of a pipe or valve. They are commonly used in piping systems where maintenance is required.

Threaded Flanges: These flanges are designed to be screwed onto a pipe. They are commonly used in low-pressure applications.

Lap Joint Flanges: These flanges are used with a stub end, which is welded to the pipe. The flange then slips over the stub end.

Applications of Duplex Steel Flanges:

Duplex steel flanges are used in a wide range of applications in various industries. Here are some of the most common applications of duplex steel flanges:

Oil and Gas Industry: Duplex steel flanges are commonly used in the oil and gas industry for pipeline connections and valve connections, where high strength and corrosion resistance are required.

Petrochemical Industry: Duplex steel flanges are used in the petrochemical industry for pipeline connections and equipment connections in corrosive environments.

Chemical Industry: Duplex steel flanges are used in the chemical industry for pipeline connections and equipment connections where high resistance to stress corrosion cracking and pitting is required.

Conclusion:

Duplex steel flanges are an essential component in the oil and gas, petrochemical, and chemical industries. They are used to connect pipes, valves, and other equipment together to create a reliable and leak-free system. At Bullion Pipes, we offer a wide range of high-quality duplex steel flanges to meet the needs of our customers. Our flanges are designed to meet the strictest industry standards and are available in different specifications and types.