China Flange Manufacturers Suppliers Factory - Customized Flange Made in China

Your Professional Flange Supplier

Jiangsu Tisco Equipment Co., Ltd. is a comprehensive valve company integrating manufacturing and trading. We specialize in the production of valves and the processing of stainless steel products, including ball valves, gate valves, butterfly valves, globe valves, as well as pipes, plates, profiles, and stems. In addition, copper, aluminum, titanium, and other alloy steels such as Inconel are also within our product range.

Blind Flange
Product Name:Blind Flange. Material:Stainless steel 304, 316 or as per your requirements. Size:½ inch (15 NB) to 48 inch (1200 NB). Pressure level:150 lbs, 300 lbs, 600 lbs, 900 lbs, 1500 lbs, 2500
Threaded Flange
Product Name: Threaded Flange. Size: ½ inch (15 NB) to 48 inch (1200 NB). Kind: 150 lbs, 300 lbs, 600 lbs, 900 lbs, 1500 lbs, 2500 lbs, DIN standard ND-6, 10, 16, 25, 40, etc.. Major: According to
Flange Adaptor
Size Range: DN15–DN600 (1/2–24)Pressure Rating: PN16 / PN25 / PN40 / Class 150 / Class 300Material: Carbon Steel (CS), Stainless Steel (SS304 / SS316), Ductile Iron, Alloy SteelStandards: ANSI B16.5,
Lap Joint Flange
Product Name:Lap Joint Flange. Material:Stainless steel 304, 316 or as per your requirements. Specification:1/2 to 48. Pressure level:150LB to 2500LB (ASME B16.34) or PN2.5 to PN160.
Silp-On Flange
Product Name: Silp-On Flange. Size: ½ inch (15 NB) to 48 inch (1200 NB). Kind: 150 lbs, 300 lbs, 600 lbs, 900 lbs, 1500 lbs, 2500 lbs, DIN standard ND-6, 10, 16, 25, 40, etc.. Major: According to the
Socket Weld Flange
Product Name: Socket Weld FlangeMaterial: Stainless steel 304, 316 or as per your requirementsSpecification: ½ (15 NB) to 48 (1200 NB)Pressure level: 150 lbs, 300 lbs, 600 lbs, 900 lbs, 1500 lbs,
Weld Neck Flange
Product Name: Weld Neck FlangeSize: ½ inch (15 NB) to 48 inch (1200 NB)Kind: 150 lbs, 300 lbs, 600 lbs, 900 lbs, 1500 lbs, 2500 lbs, DIN standard ND-6, 10, 16, 25, 40, etc.Major: According to the

Why Choose Us

OEM Services

When you submit your requirements, our engineers will provide faster and more comprehensive customized solutions. We offer a wide range of products and provide technical support based on your actual needs, helping you select the most suitable products.

Fast Delivery

We maintain sufficient stock and can arrange fast shipment. A variety of styles is available for you to choose from.

Our Services

We provide 24-hour online service and strictly control quality management from the date the order is placed. We conduct regular product inspections and daily random checks to ensure that every batch of shipped products meets quality standards.

Flange

It typically consists of a flat ring or square metal piece with holes fixed around its perimeter for bolt or weld connections. Flanges are generally divided into two parts: one fixed to the pipe or equipment, known as the flange seat or flange base, and the other as the connection's opposite end, the flange plate.

The primary function of a flange is to facilitate the connection of pipeline systems and provide sealing performance to prevent leakage of fluids or gases. It can also allow for the disassembly of pipeline systems when necessary and provide a convenient interface for installing and maintaining pipeline equipment.

Product Parameter (Specification)

We offer a full range of stainless steel, duplex, and alloy steel cross fittings in various sizes to meet different piping requirements.

Product Name	Weld Neck Flange
Size	½ inch (15 NB) to 48 inch (1200 NB)
Kind	150 lbs, 300 lbs, 600 lbs, 900 lbs, 1500 lbs, 2500 lbs, DIN standard ND-6, 10, 16, 25, 40, etc.
Major	According to the drawings
Standard	ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN, IS, SABS1123, GOST-12820
Coating/ surface treatment	Rust-preventive paint, black paint, yellow transparent paint, galvanized, hot and cold galvanized
Flange face type	Flat (FF), raised (RF), ring connector (R]T)
Size	ANSI B16.5, ANSI B16.47 series A & B, MSS SP44, ASA, API-605, AWWA, custom drawings
Use/ Application	Oil fields, coastlines, water systems, shipbuilding, natural gas, electricity, pipeline engineering, etc.

Materials of Flanges

Common flange materials include carbon steel, stainless steel, and alloy steel.

Carbon Steel

Carbon steel flanges are among the most common choices due to their excellent mechanical properties, good machinability, and cost-effectiveness. They are suitable for general industrial applications and low-temperature environments, but may have limitations in high-temperature or highly corrosive conditions.

Stainless Steel

Stainless steel flanges offer excellent corrosion resistance and mechanical properties, making them suitable for applications involving corrosive media, such as chemical processing and food processing.

Alloy Steel

Alloy steel flanges provide excellent resistance to high temperatures and corrosion, making them suitable for high-temperature, high-pressure, and corrosive pipeline systems. They are commonly used in the refining, chemical, and energy industries but involve higher costs.

Cast Iron

Cast iron flanges are widely used in low-pressure, low-temperature, and general industrial applications due to their relatively low cost. However, they have poor corrosion resistance and mechanical strength and are unsuitable for more demanding environments.

Plastic

Plastic flanges can be used for special applications, such as chemical transportation or handling corrosive media. They are typically made of polyethylene or polypropylene and offer good corrosion resistance.

Types of Flange

Flanges come in different types and designs. Some common types of flanges are as follows:

Weld Neck Flanges: Weld neck flanges have a long tapered hub and are designed to be butt-welded to the pipe. The flange provides excellent strength and resistance to deformation under pressure. They are commonly used in high-pressure and high-temperature applications.

Slip-On Flanges: Slip-on flanges have a slightly larger diameter than the pipe and are slipped over the pipe before being welded in place. They are easier to align and are often used in low-pressure applications. Slip-on flanges are not suitable for applications with high bending moments or severe temperature fluctuations.

Threaded Flanges: Threaded flanges have internal threads that allow them to be screwed onto the pipe. They are used in applications where it is necessary to assemble and disassemble the connection frequently. However, threaded flanges are not recommended for high-pressure applications.

Lap Joint Flanges: Lap joint flanges consist of a flat face flange and a separate backing flange. The backing flange is typically made of different materials and is used to provide alignment and support. Lap joint flanges are commonly used in systems requiring frequent dismantling.

Blind Flanges: Blind flanges are solid discs used to block off the end of a piping system. They are used when future expansion or maintenance might be required. Blind flanges can also be used as inspection covers.

Common considerations include

Outside diameter: The distance between two opposing edges of the flange face

Thickness: A measure of the thickness of the outer attaching rim

Bolt circle diameter: The distance between opposing bolt holes when measured from centre to centre

Pipe size: A designation of the pipe size with which the flange corresponds

Nominal bore size: A measurement of the flange connectors inner diameter

Flange standards

Flange dimensions are determined based on specific standards and design parameters. General approaches to determining flange dimensions include:

Standard Selection:

Flange dimensions are typically defined by international standards. For example, standards such as ANSI/ASME, DIN, and JIS specify flange dimensions, classes, and tolerances. It is important to choose a standard that is suitable for the project or application requirements.

Pressure Class and Size:

Flange dimensions are determined based on the pressure class and size of the pipeline being used. The pressure class should be selected to withstand the maximum pressure carried by the pipeline. The dimensions of the pipe, such as the outer diameter and inner diameter, are also taken into consideration.

Flange Type:

Flange dimensions are determined based on the type of flange being used. Different types of flanges, such as flat flanges, weld neck flanges, and threaded flanges, have different dimension standards. It is important to follow the specified standard dimensions for each type of flange.

Pipeline Material:

Flange dimensions are also determined based on the material of the pipeline being used. Different materials, such as steel, stainless steel, and carbon steel, have different dimension standards.

Tolerances:

Tolerances are also considered in flange dimensions. These represent acceptable deviations within a specified range. Tolerances are important to ensure proper assembly of the flange and achieve a compatible connection.

Our Advantages

Customizable Diameter

Our product offers a wide range of customizable diameters to meet the specific needs of customers, including those requiring larger diameters for heavy-duty applications.

High-Quality Materials

Available in stainless steel, carbon steel, and alloy steel materials, ensuring durability and resistance to corrosion in various environments.

Multi-Standard Compatibility

Our product complies with international standards such as ANSI, BS, DIN, GB, ISO, JIS, and JPI, making it suitable for global applications.

Durable Construction

Manufactured using advanced forged casting technology, providing a strong and reliable product that withstands high pressure and extreme temperatures.

Convenient Packaging

Offered in a variety of packaging options, including wooden box, pallet, or carton, for easy transportation and storage, shipped from Tianjin and Qingdao ports.

FAQ

Q: Can you accept L/C deferred 30, 60, 90days?

A: We can.

Q: Can you supply invoice and CO with chamber of commerce?

A: Yes, we can supply.

Q: Can you supply Form e, Cerficiate of origin?

A: Yes, we can supply.

Q: Can you accept O/A payment?

A: We can.

Q: Can you supply samples?

A: Yes, some samples are free.

Q: Can you supply the products which comply with NACE?

A: Yes, we can.

As one of the leading flange manufacturers and suppliers in China, our products have good reputation in the market. We warmly welcome you to buy high quality flange made in China here from our factory. We also accept customized orders.

Blind Flange, flange, Lap Joint Flange