Different Types Of Blind Flanges

Elite Piping Manufacture Co. is a company specializing in different types of blind flanges. Our products are of high quality and our services are in place. We are your best choice. You are welcome to communicate with us on related matters at any time.

What Is A Blind Flange?

A blind flange is a type of flange used to seal the end of a pipe or vessel. These flanges are usually solid discs that are bolted to the end of a pipe, with a designated sealing face. Blind flanges have various applications, such as isolating a pipe section for maintenance or repair, terminating a pipeline, pressure testing, and providing access points for cleaning or inspection.

Blind flanges are available in a variety of diameters, materials, and pressure ratings. Installation is simple: they are bolted to the open end of the pipe with a gasket to achieve a tight, leak-free seal. Tightening the bolts evenly ensures a secure connection.

Blind flanges are manufactured from a variety of stainless steel grades tailored to specific needs. Grade 304 flanges boast excellent corrosion resistance and weldability, while Grade 316 excels in chloride-rich environments.

Grade 316L offers enhanced corrosion resistance for welded components, and Grade 310 flanges provide robust resistance to acids and high temperatures. Grade 321 flanges are ideal for high-temperature applications, offering excellent resistance to intergranular corrosion, while Grade 904L offers unparalleled resistance to harsh conditions such as sulfuric acid environments.

The selection of grade depends on the precise operating conditions and mechanical requirements of the application.

Different Types Of Blind Flanges

1. Raised Face Blind Flange

Raised face blind flanges have a raised ring around the flange surface that forms a seal when mated with a similar raised face flange. This design is suitable for high pressure applications due to the increased sealing surface area.

2. Ring Joint Blind Flange

Ring joint blind flanges use a metal ring gasket to seal the connection. This type of flange is highly effective in high-pressure and high-temperature applications due to the ring gasket’s ability to withstand extreme conditions.

3. Flat Face Blind Flange

Flat Face blind flanges have a flat surface without any raised area. The flat face flange design, although less common than raised face or ring joint flanges, is still suitable for low-pressure applications, as it offers adequate sealing properties.

4. Weld Neck Blind Flange

Weld Neck blind flanges are connected to the pipe with a circular weld around the flange neck. This design has excellent strength and is suitable for high pressure and high temperature applications.

5. Closed Joint Blind Flange

Closed Joint blind flanges are similar to weld neck flanges but with a shorter neck. This design is often used in tight spaces where a full-length neck would interfere with other components.

Blind Flange Supplier

Elite Piping Manufacture Co., Ltd is a manufacturer of flanges and a supplier of pipe fittings and line pipes. We are committed to producing and selling high-quality flanges and pipes; we have a professional team to ensure that our customers can enjoy high-quality services when purchasing the products of their choice.

 Our Blind Flange

Our blind flanges are available in four main types: forged, cast, medium plate, and cutting. Each type has its own distinct characteristics and price points.

Forged flanges are considered the highest quality and come with a premium price tag, followed by medium plate flanges. On the other hand, cast flanges are more affordable but may have slightly lower quality. Cutting is the final process used to create these flanges. Overall, the forged and medium plate flanges boast superior quality compared to the cast and cutting varieties.

Successful Cases of Blind Flanges

We have advanced production technology, a high automation degree, and precision, ensuring complete molding. As the supplier of major energy enterprise groups under the jurisdiction of SASAC, our company has received numerous national and provincial recognition.

We have rich production technology, advanced equipment, high automation degree, and high production precision, ensuring complete molding. As the supplier of major energy enterprise groups under the jurisdiction of SASAC, our company has won numerous national and provincial recognitions.

We are a highly professional company and we are dedicated to providing products that will satisfy you. You can be confident that the products you receive are backed by our commitment to quality and customer satisfaction. We offer competitive prices, fast transportation times, and excellent customer service to ensure that you have the best experience.