DIN 2527 is a German standard for flanges, and it specifies the design, dimensions, and tolerances for blind flanges made of stainless steel 304. These flanges are commonly used in piping systems to seal the end of a pipe, creating a closed-off section. Here’s a detailed description: DIN 2527 Stainless Steel 304 Blind Flanges Material: Stainless Steel 304: This is an austenitic grade of stainless steel known for its excellent corrosion resistance, particularly against atmospheric, chemical, and other harsh environments. Stainless steel 304 is also known for its good weldability, formability, and strength, making it an ideal material for flanges used in a variety of industries, including chemical, food processing, and construction. Design and Dimensions: Shape: Blind flanges are flat, circular plates with no center hole, designed to seal the end of a pipeline or vessel. Bolt Holes: These flanges are designed to match the corresponding pipe flange with holes to align with the bolts that will attach them to other flanged components. The bolt holes are usually equally spaced around the perimeter. Thickness: The thickness of DIN 2527 blind flanges varies depending on the pressure rating and the size of the flange. This thickness is essential for the flange to withstand internal pressure and provide a secure seal. Pressure Rating: These flanges are rated according to pressure classes such as PN 6, PN 10, PN 16, PN 25, etc. The rating determines the maximum pressure the flange can safely handle without failure. Applications: Pipeline Sealing: Primarily used to seal the open end of a pipeline or system to prevent leaks and maintain pressure in a closed system. System Isolation: Used when isolating a section of the system for maintenance or modification, as they allow for the easy disconnection of parts. Pressure Containment: In applications where maintaining pressure is essential, a DIN 2527 blind flange provides a tight seal that can withstand varying levels of internal pressure. Features: Corrosion Resistance: As the flange is made of stainless steel 304, it offers excellent resistance to corrosion, even in moderately acidic or alkaline environments. Temperature Resistance: Stainless steel 304 can withstand high temperatures, making it suitable for use in elevated temperature environments. Durability: Stainless steel 304 has excellent strength and durability, ensuring a long service life with minimal wear or corrosion. Types of Blind Flanges in DIN 2527: Raised Face: The face of the flange is slightly raised to create a better seal when mated with the gasket. Flat Face: The face is level with the rest of the flange surface and is generally used with softer gaskets to create the seal. Ring Type Joint (RTJ): Some blind flanges may also come with a grooved surface designed for use with metallic gaskets that provide a more secure, high-pressure seal. These DIN 2527 stainless steel 304 blind flanges are essential components in many piping systems, offering a reliable, durable, and efficient way to seal and isolate sections of the pipeline.
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