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Flange & Fitting


Standard specifications and technical requirements for various flanges and fittings.

ASME B16.47 Series B Flanges Class 400

Technical drawings Dimensions *D: outside diameter of flange; K: diameter of bolt circle; G: outside diameter of raised face; X: diameter of hub of  WN flange. All dimensions are in mm units. *A: diameter of hub top of WN; TBL: minimum thickness of blind flange; TWN: minimum thickness of WN flange; Y: length through hub of WN; t: 7mm height …

ASME B16.47 Series B Flanges Class 300

Technical drawings Dimensions *D: outside diameter of flange; K: diameter of bolt circle; G: outside diameter of raised face; X: diameter of hub of  WN flange. All dimensions are in mm units. *A: diameter of hub top of WN; TBL: minimum thickness of blind flange; TWN: minimum thickness of WN flange; Y: length through hub of WN; t: 2mm height …

ASME B16.47 Series B Flanges Class 150

Technical drawings Dimensions *D: outside diameter of flange; K: diameter of bolt circle; G: outside diameter of raised face; X: diameter of hub of  WN flange. All dimensions are in mm units. *A: diameter of hub top of WN; TBL: minimum thickness of blind flange; TWN;: minimum thickness of WN flange; Y: length through hub of WN; t: 2mm height …

ASME B16.47 Series B Flanges Class 75

Technical drawings Dimensions *D: outside diameter of flange; K: diameter of bolt circle; G: outside diameter of raised face; X: diameter of hub of  WN flange. All dimensions are in mm units. *A: diameter of hub top of WN; TBL: minimum thickness of blind flange; TWN: minimum thickness of WN flange; Y: length through hub of WN; t: 2mm height …

ASME B16.47 Series A Flanges Class 900

Technical Drawings Dimensions of 900# B16.47 Series A flanges. *D: outside diameter of flange; K: diameter of bolt circle; G: diameter of raised face; X: diameter of hub of flange; All dimensions are in mm. *A: Diameter of hub top of WN; TBL: minimum thickness of blind flange; TWN: minimum thickness of WN flange. Y: length through hub of WN; …

ASME B16.47 Series A Flanges Class 600

Technical Drawings Dimensions of 600# B16.47 Series A flanges. *D: outside diameter of flange; K: diameter of bolt circle; G: diameter of raised face; X: diameter of hub of flange; All dimensions are in mm. *A: Diameter of hub top of WN; TBL: minimum thickness of blind flange; TWN: minimum thickness of WN flange. Y: length through hub of WN; …

ASME B16.47 Series A Flanges Class 400

Technical Drawings Dimensions of 400# B16.47 Series A flanges. *D: outside diameter of flange; K: diameter of bolt circle; G: diameter of raised face; X: diameter of hub of flange; All dimensions are in mm. *A: Diameter of hub top of WN; TBL: minimum thickness of blind flange; TWN: minimum thickness of WN flange. Y: length through hub of WN; …

ASME B16.47 Series A Flanges Class 300

Technical Drawings Dimensions of 300# B16.47 Series A flanges. *D: outside diameter of flange; K: diameter of bolt circle; G: diameter of raised face; X: diameter of hub of flange; All dimensions are in mm. *A: Diameter of hub top of WN; TBL: minimum thickness of blind flange; TWN: minimum thickness of WN flange. Y: length through hub of WN; …

ASME B16.47 Series A Flanges Class 150

Technical Drawings Dimensions of 150# B16.47 Series A flanges. *D: outside diameter of flange; K: diameter of bolt circle; G: diameter of raised face; X: diameter of hub of flange; All dimensions are in mm. *A: Diameter of hub top of WN; TBL: minimum thickness of blind flange; TWN: minimum thickness of WN flange. Y: length through hub of WN; …

ASME B16.47 RTJ Flanges

Technical drawing Dimensions and tolerances of RTJ facings ASME B16.47 RTJ flanges refer to large diameter welding neck or blind flanges made in accordance with ASME B16.47 with ring-type joint facings. Similar to that of ASME B16.5, the RTJ flange conforming to ASME B16.47, either Series A or Series B, is also furnished with a ring-joint groove in the contact …

ASME B16.47 Flanges

What are ASME B16.47 flanges? The ASME B16.47 flanges 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 designations 75, 150, 300, 400, 600, and 900. NPS is the …

ASME B16.5 RTJ Flange

Construction & Characteristics The ASME B16.5 RTJ flanges refers to pipe flanges manufactured in accordance with ASME B16.5 furnished with a ring-type joint facing. The ring-type joint facing, also known simply as ring joint facing, is an additional raised portion furnished to various flange types to form a one-piece flange. A deep ring-shaped groove shall be cut into the flange …

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