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What is ASME B16.47 Blind Flange
Blind flange is a flange without a hole in the middle, used to seal pipeline openings. The formal name of blind plate is flange cover, which plays the same function as the head and pipe cap. However, blind plate sealing is a detachable sealing device, while head sealing is not detachable.
ASME B16.47 blind flange refer to large diameter pipe flanges manufactured in accordance with ASME B16.47, which covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for the flanges. These flanges can be provided in sizes NPS 26 through NPS 60 with rating class designations150, 300, 600, and 900. NPS is the designation for nominal flange size. It is related to the reference nominal diameter, DN, used in international and other standards.
Types for ASME B16.47 Flange
ASME B16.47 provides two series of flange dimensions and two flange types. Series A specifies flange dimensions for general use flanges, which are originated from MSS SP 44 and covering Class 150, Class 300, Class 400, Class 600, and Class 900. Series B specifies flange dimensions for compact flanges that, in most cases, have smaller bolt circle diameters than Series A flanges. At the request of the American Petroleum Institute (API), flange dimensions of ASME B16.47 Series B are provided in accordance with the API standard 605. The two series of flanges are, in general, not interchangeable. Two flange types, welding neck and blind, can be furnished for both series of flanges.
ASME B16.47 Blind Flange
ASME B16.47 Weld Neck Flange
Differentiating ASME B16.47 Series A and Series B
Series A flanges are thicker, heavier, and stronger, suitable for withstanding greater external loading.
Series B flanges, on the other hand, are lighter, less expensive, and require more but smaller fasteners.
Series A includes weld neck, blind, and ring type joint (RTJ) flanges, while Series B primarily focuses on weld neck and blind flanges.
Difference Between ASME B16.5 And ASME B16.47
ASME B16.5 are components that are used to fit together two pipes or a pipe with other components in a system. They could either be connected by bolt and nut or by welding together. ANSI B16.5 belong to the standard B16.5. industrial flange have a category that can hold the classes 150 through 2500 and their diameter ranges from ¼ inches to 24 inches.
ASME B16.47 vary from nominal pipe sizes 26 inches to 60 inches. Large Diameter Flanges is a type which has a blind end. This is usually used in fluid flow systems where the pipe has to be closed. ASME B16.47 Series A Flange can differ according to the material composition but they are usually heavier than the ASME B16.47 Series B Flanges.
Identification markings & testing for B16.47 Flange
Pipe flanges conforming to ASME B16.47 shall be marked by the following method: brand name + material + pressure rating + standard + size + R-number (for a RTJ facing) + heat number. For example: M ASTM A105 Class 600 ASME B16.47 Series A 30″ RF 78580. Flanged joints may be subjected to system pressure tests at a pressure of 1.5 times the 38°C (100°F) rating rounded off to the next higher 1 bar (25 psi) increment. Testing at any higher pressure is the responsibility of the user, taking into account the requirements of the applicable code or regulation.
Marking of ASME B16.47 Blind Flange
ASME B16.47 Flanges Application
Oil and Gas Pipeline
Chemical Industry
Plumbing
Water Supply Systems
Flanges uses in Power Plant
Paper & Pulp Industry
Fabrication Industry
Food Processing Industry
Structural Pipe
What is ASME B16.47 Blind Flange
Blind flange is a flange without a hole in the middle, used to seal pipeline openings. The formal name of blind plate is flange cover, which plays the same function as the head and pipe cap. However, blind plate sealing is a detachable sealing device, while head sealing is not detachable.
ASME B16.47 blind flange refer to large diameter pipe flanges manufactured in accordance with ASME B16.47, which covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for the flanges. These flanges can be provided in sizes NPS 26 through NPS 60 with rating class designations150, 300, 600, and 900. NPS is the designation for nominal flange size. It is related to the reference nominal diameter, DN, used in international and other standards.
Types for ASME B16.47 Flange
ASME B16.47 provides two series of flange dimensions and two flange types. Series A specifies flange dimensions for general use flanges, which are originated from MSS SP 44 and covering Class 150, Class 300, Class 400, Class 600, and Class 900. Series B specifies flange dimensions for compact flanges that, in most cases, have smaller bolt circle diameters than Series A flanges. At the request of the American Petroleum Institute (API), flange dimensions of ASME B16.47 Series B are provided in accordance with the API standard 605. The two series of flanges are, in general, not interchangeable. Two flange types, welding neck and blind, can be furnished for both series of flanges.
ASME B16.47 Blind Flange
ASME B16.47 Weld Neck Flange
Differentiating ASME B16.47 Series A and Series B
Series A flanges are thicker, heavier, and stronger, suitable for withstanding greater external loading.
Series B flanges, on the other hand, are lighter, less expensive, and require more but smaller fasteners.
Series A includes weld neck, blind, and ring type joint (RTJ) flanges, while Series B primarily focuses on weld neck and blind flanges.
Difference Between ASME B16.5 And ASME B16.47
ASME B16.5 are components that are used to fit together two pipes or a pipe with other components in a system. They could either be connected by bolt and nut or by welding together. ANSI B16.5 belong to the standard B16.5. industrial flange have a category that can hold the classes 150 through 2500 and their diameter ranges from ¼ inches to 24 inches.
ASME B16.47 vary from nominal pipe sizes 26 inches to 60 inches. Large Diameter Flanges is a type which has a blind end. This is usually used in fluid flow systems where the pipe has to be closed. ASME B16.47 Series A Flange can differ according to the material composition but they are usually heavier than the ASME B16.47 Series B Flanges.
Identification markings & testing for B16.47 Flange
Pipe flanges conforming to ASME B16.47 shall be marked by the following method: brand name + material + pressure rating + standard + size + R-number (for a RTJ facing) + heat number. For example: M ASTM A105 Class 600 ASME B16.47 Series A 30″ RF 78580. Flanged joints may be subjected to system pressure tests at a pressure of 1.5 times the 38°C (100°F) rating rounded off to the next higher 1 bar (25 psi) increment. Testing at any higher pressure is the responsibility of the user, taking into account the requirements of the applicable code or regulation.
Marking of ASME B16.47 Blind Flange
ASME B16.47 Flanges Application
Oil and Gas Pipeline
Chemical Industry
Plumbing
Water Supply Systems
Flanges uses in Power Plant
Paper & Pulp Industry
Fabrication Industry
Food Processing Industry
Structural Pipe
