Blind flanges are essential components in piping systems used to seal the end of a pipe, valve, or pressure vessel opening. Blind flanges are plate-like discs that have no center bore, making them ideal for closing the end of a piping system.It is different from the spectacle blind in function and shape.
Product Introduction
Blind flanges are made from different materials, depending on the specific requirements of the application. Materials such as stainless steel, carbon steel, and alloy steel are commonly used. The flanges are designed to fit piping systems with varying pressures, sizes, and temperatures. There are different types of blind flanges, including raised face blind flanges, ring type joint (RTJ) blind flanges, and flat face blind flanges. The choice of blind flange to use depends on the application's needs.
Specifications and Models
Blind flanges come in different specifications and models, each designed to meet unique application requirements. They are available in various sizes, ranging from 1/2" to 48" for raised face blind flanges and 1/2" to 24" for RTJ blind flanges. The thickness of the flange varies, too, with the standard thickness ranging from 1/4" to 1", while the heavy pipe blind flanges thickness range from 2"-24". The flange models come in Class 150 to Class 2500, PN6 to PN64 pressure rating, and ASME/ANSI B16.5, ASME/ANSI B16.47, API, and MSS SP44 standards.
Function and classification
Seen from the appearance, the blind plate is generally divided into plate-type flat plate blind plate, spectacle blind plate, plug plate and backing ring (plug plate and backing ring are blind to each other). The blind plate plays the same role of isolation and cutting as the head, pipe cap and welding plug. Because of its good sealing performance, it is generally used as a reliable means of isolation for systems requiring complete isolation. The plate-type flat blind plate is a solid circle with a handle, which is used for the system in the isolation state under normal conditions. The spectacle blind is shaped like a spectacle blind. One end is a blind plate and the other end is a throttling ring, but the diameter is the same as the pipe diameter and does not play a throttling role. The spectacle blind plate is easy to use. When isolation is required, use the blind plate end. When normal operation is required, use the throttling ring end. It can also be used to fill the installation gap of the blind plate on the pipeline. Another feature is obvious identification and easy to identify the installation status
Comparison with Similar Products
Blind flanges are a better sealing option than other sealing products. They are more robust and more durable than gaskets, which can wear out over time. Blind flanges are also more reliable than bolted body flanges, which require tightening and retightening to prevent leakage. Blind flanges offer a permanent seal and require less maintenance, making them a cost-effective option in the long run.
In conclusion, blind flanges are critical components in piping systems, used to seal the end of a pipe or valve opening. They are made from different materials and come in different sizes, specifications, and models, making them suitable for various applications. The flanges are reliable, durable, and require less maintenance, making them a cost-effective option in the long run. Blind flanges are a better sealing option than gaskets and bolted body flanges and offer a permanent seal to prevent leakage. If you need a reliable and trustworthy blind flange supplier, consider us. We have an extensive range of blind flanges that meet the highest quality standards, ensuring your piping system's safety and reliability.
Post time: Mar-16-2023
