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фланцы ASME/ANSI B16.5-1996 и B16.47-1996

big-size-flanges

Flange ASME/ANSI B16.5-1996 And B16.47-1996

Фланец представляет собой способ соединения трубы, клапанов, насосов и другого оборудования для формирования системы трубопроводов. Она также обеспечивает легкий доступ для очистки, осмотра или модификации. Фланцы обычно сварная или на болтах. Фланцевые соединения выполнены с помощью болтовых соединений вместе два фланца с прокладкой между ними, чтобы обеспечить уплотнение.


Спецификация:

ASME/ANSI B16.5-1996 and B16.47-1996
Tolerances on flange dimensions (ASME/ANSI B16.5 and B16.7, and MSS SP-44)
Dimension Range Tolerance
in mm
General and Blind Flanges(For blind flange dimendions see page 8-23 for
B16.5, page8-46 for B16.47 Series A/ MSS SP-44 and page 8-51 for B16.47
Series B/ API 605):
G(raised face
diameter)
≤NPS 24 ±0.03 ±0.76
≥NPS 26,with
0.06 in raised face
±0.08 ±2.03
≥NPS 26,with
0.25 in raised face
±0.04 ±1.02
I(bolt hole diameter) All No tolerance in B16.5 or B 16.47
J(bolt circle diameter) All ±0.06 ±1.52
Center to center of
adjacent bolt holes
All ±0.03 ±0.76
Eccenticity of bolt
circle and machined facing diameters
≤NPS 2½ ±0.03 ±0.76
≥NPS 3 ±0.06 ±1.52
Weld Neck Flanges1 (For dimensions see page 8-10 for B 16.5, page 8-46 for
B16.47 Series A/ MSS SP-44 and page 8-51 for B16.47 Series B/ API 605):
D(overall length) ≤NPS 4 ﹢0.06 ﹢1.52
NPS 5 to 10 ﹢0.06,﹣0.12 ﹢1.52,﹣3.05
NPS 12 to 24 ﹢0.12,﹣0.18 ﹢3.05,﹣4.57
≥NPS 26 ±0.19 ±4.83
Thickness of hub All >87.5% of pipe nominal wall thickness
Slip on(see page 8-17),Lap Joint(see page8-32) and Socket Welding(see page
8-30 for dimensions) Flanges:
B(inside diameter,or
bore)
≤NPS10 ﹢0.03,﹣0.0 ﹢0.76,﹣0.0
≥NPS12 ﹢0.06,﹣0.0 ﹢1.52,﹣0.0
Threaded Flanges (see page 8-40 for dimensions):
B(counterbore)
(Not applicable for
Class 150 lb
≤NPS10 ﹢0.03,﹣0.0 ﹢0.76,﹣0.0
≥NPS12 ﹢0.06,﹣0.0 ﹢1.52,﹣0.0

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Home » фланцы ASME/ANSI B16.5-1996 и B16.47-1996

Flange ASME/ANSI B16.5-1996 And B16.47-1996

big-size-flanges

Flange ASME/ANSI B16.5-1996 And B16.47-1996

A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. Flanged joints are made by bolting together two flanges with a gasket between them to provide a seal.


Specification:

ASME/ANSI B16.5-1996 and B16.47-1996
Tolerances on flange dimensions (ASME/ANSI B16.5 and B16.7, and MSS SP-44)
Dimension Range Tolerance
in mm
General and Blind Flanges(For blind flange dimendions see page 8-23 for
B16.5, page8-46 for B16.47 Series A/ MSS SP-44 and page 8-51 for B16.47
Series B/ API 605):
G(raised face
diameter)
≤NPS 24 ±0.03 ±0.76
≥NPS 26,with
0.06 in raised face
±0.08 ±2.03
≥NPS 26,with
0.25 in raised face
±0.04 ±1.02
I(bolt hole diameter) All No tolerance in B16.5 or B 16.47
J(bolt circle diameter) All ±0.06 ±1.52
Center to center of
adjacent bolt holes
All ±0.03 ±0.76
Eccenticity of bolt
circle and machined facing diameters
≤NPS 2½ ±0.03 ±0.76
≥NPS 3 ±0.06 ±1.52
Weld Neck Flanges1 (For dimensions see page 8-10 for B 16.5, page 8-46 for
B16.47 Series A/ MSS SP-44 and page 8-51 for B16.47 Series B/ API 605):
D(overall length) ≤NPS 4 ﹢0.06 ﹢1.52
NPS 5 to 10 ﹢0.06,﹣0.12 ﹢1.52,﹣3.05
NPS 12 to 24 ﹢0.12,﹣0.18 ﹢3.05,﹣4.57
≥NPS 26 ±0.19 ±4.83
Thickness of hub All >87.5% of pipe nominal wall thickness
Slip on(see page 8-17),Lap Joint(see page8-32) and Socket Welding(see page
8-30 for dimensions) Flanges:
B(inside diameter,or
bore)
≤NPS10 ﹢0.03,﹣0.0 ﹢0.76,﹣0.0
≥NPS12 ﹢0.06,﹣0.0 ﹢1.52,﹣0.0
Threaded Flanges (see page 8-40 for dimensions):
B(counterbore)
(Not applicable for
Class 150 lb
≤NPS10 ﹢0.03,﹣0.0 ﹢0.76,﹣0.0
≥NPS12 ﹢0.06,﹣0.0 ﹢1.52,﹣0.0

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