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Flange & Fitting


Standard specifications and technical requirements for various flanges and fittings.

ASME B16.5 S/O Plate Flange

The slip-on plate flange conforming to ASME B16.5 is a special slip on flange without hub. It can be viewed as a blind flange drilled with a bore at the center. The outside diameter, diameter of bore, flange thickness, bolting dimensions, and facing dimensions of a S/O plate flange are the same as that of a standard slip on flange …

ASME B16.5 Long Weld Neck Flange

Construction Characteristics ASME B16.5 has endorsed the design of long welding neck flange (LWN), which is also known as straight hub welding flange. The LWN flange is constructed by two sections: the upper section is a heavy-wall barrel, whilst the lower section is a disc-like plate flange with all dimensions conforming to ASME B16.5 standard flanges. Application The long welding …

ASME B16.5 Class 2500 Blind Flange

Technical Drawing Dimensions of 2500# Blind Flanges *D: outside diameter of blind flange; K: diameter of bolt circle; G: outside diameter of raised face; T: minimum thickness of 2500LB blind flange; All units are mm. *n: number of bolts; d: diameter of bolt holes; l: diameter of bolts; L: length of stud bolt; Mass: approximate weights/masses of the flange; For …

ASME B16.5 Class 1500 Blind Flange

Technical Drawing Dimensions of 1500# Blind Flanges *D: outside diameter of blind flange; K: diameter of bolt circle; G: outside diameter of raised face; T: minimum thickness of 1500LB blind flange; All units are mm. *n: number of bolts; d: diameter of bolt holes; l: diameter of bolts; L: length of stud bolt; Mass: approximate weights/masses of the flange; For …

ASME B16.5 Class 900 Blind Flange

Technical Drawing Dimensions of 900# Blind Flanges *D: outside diameter of blind flange; K: diameter of bolt circle; G: outside diameter of raised face; T: minimum thickness of 900LB blind flange; All units are mm. *n: number of bolts; d: diameter of bolt holes; l: diameter of bolts; L: length of stud bolt; Mass: approximate weights/masses of the flange; For …

ASME B16.5 Class 600 Blind Flange

Technical Drawing Dimensions of 600# Blind Flanges *D: outside diameter of blind flange; K: diameter of bolt circle; G: outside diameter of raised face; T: minimum thickness of 600LB blind flange; All units are mm. *n: number of bolts; d: diameter of bolt holes; l: diameter of bolts; L: length of stud bolt; Mass: approximate weights/masses of the flange; For …

ASME B16.5 Class 400 Blind Flange

Technical Drawing Dimensions of 400# Blind Flanges *D: outside diameter of blind flange; K: diameter of bolt circle; G: outside diameter of raised face; T: minimum thickness of 400LB blind flange; All units are mm. *n: number of bolts; d: diameter of bolt holes; l: diameter of bolts; L: length of stud bolt; Mass: approximate weights/masses of the flange; For …

ASME B16.5 Class 300 Blind Flange

Technical Drawing Dimensions of 300# Blind Flanges *D: outside diameter of blind flange; K: diameter of bolt circle; G: outside diameter of raised face; T: minimum thickness of 300LB blind flange; All units are mm. *n: number of bolts; d: diameter of bolt holes; l: diameter of bolts; L: length of machine bolt or stud bolt; Mass: approximate weights/masses of …

ASME B16.5 Class 150 Blind Flange

Technical Drawing Dimensions of 150# Blind Flanges *D: outside diameter of blind flange; K: diameter of bolt circle; G: outside diameter of raised face; T: minimum thickness of 150LB blind flange; All units are mm. *n: number of bolts; d: diameter of bolt holes; l: diameter of bolts; L: length of machine bolt or stud bolt; Mass: approximate weights/masses of …

ASME B16.5 Reducing Flange

What’s A Reducing Flange? ASME B16.5 has endorsed the design and construction of a reducing flange. The reducing flange is used to make a reduction in the diameter of the pipe. A reducing flanged joint consists of a reducing flange and a standard flange, functioning like a reducer fitting. As illustrated in Figure-1, the larger end of reducing flange A, …

ASME B16.5 Blind Flanges

Construction & Function Blind flanges manufactured in accordance with ASME B16.5 can be provided in Class 150 through Class 2500. It is basically a circular disc that does not have a hub or bored center. Bolts holes are drilled and aligned symmetrically along the circumferential edge of the solid disc. Generally the blind flange may be furnished with raised face, …

ASME B16.5 Class 1500 Lap Joint Flange

Technical Drawing Dimensions of 1500# Lap Joint Flanges *D: outside diameter of flange; K: diameter of bolt circle; B: minimum bore diameter; X: diameter of hub at base; All units are mm. *n: number of bolts; d: diameter of bolt holes; l: diameter of bolts; L: length of stud bolt, calculated according to Non-mandatory Appendix C; All units are mm …

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