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标题: 技术参数(2)Engineering Data (2) [打印本页]

作者: 帅哥    时间: 2009-11-20 12:43:55     标题: 技术参数(2)Engineering Data (2)

尺寸和参数 - 管道螺纹, 法兰,以及压力换算系数
Dimensions and References–Pipe Threads, Flanges, and Pressure Conversion Factors
美国标准锥管,NPT (摘选自ANSI B1.20.1)
American Standard Taper Pipe Thread, NPT (excerpt from ANSI B1.20.1)
公称通径
Nominal
Size
外径
Outside
Diameter
每英寸
螺纹数量
Number
of Threads
Per Inch
螺纹的
斜度
Pitch of
Thread
正常手动
啮合深度
Normal
Engagement
By Hand
有效螺纹
长度
Length of
Effective
Thread
用于内端螺纹
的扳手装
配长度
Wrench
Makeup Length
for Internal
Thread
管道到消
失点的全长
Total Length:
End of Pipe
to Vanish
Point
外端螺纹开始
点的螺纹中径
Pitch Diameter
at Beginning
of External
Thread
内端螺纹开始
点的螺纹中径
Pitch Diameter
at Beginning
of Internal
Thread
螺纹高度
(最大)
Height of
Thread
(Max.)
DnPL1L2L3L4E0E1h
英寸
in.
英寸
in.
英寸
in.
英寸
in.
英寸
in.
英寸
in.
英寸
in.
英寸
in.
英寸
in.
英寸
in.
DN6
1/4
0.540180.055560.2280.40180.16670.59460.477390.491630.04444
DN15
1/2
0.840140.071430.3200.53370.21430.78150.758430.778430.05714
DN20
3/4
1.050140.071430.3390.54570.21430.79350.967680.988870.05714
DN25
1
1.31511-1/20.086960.4000.68280.26090.98451.213631.238630.06957
DN32
1-1/4
1.66011-1/20.086960.4200.70680.26091.00851.557131.583380.06957
DN40
1-1/2
1.90011-1/20.086960.4200.72350.26091.02521.796091.822340.06957
DN50
2
2.37511-1/20.086960.4360.75650.26091.05822.269022.296270.06957
DN65
2-1/2
2.87580.125000.6821.13750.25001.57122.719532.762160.10000
DN80
3
3.50080.125000.7661.20000.25001.63373.340623.388500.10000
DN100
4
4.50080.125000.8441.30000.25001.73374.334384.387120.10000

不要与Schedule 40管道的螺纹啮合
Do not thread Schedule 40 pipe.

压力系数
Pressure Factors
  压力测量是以标准水压为基础,具有各种不同的英制和公制单位。
  Pressure measurements are based on the standardized weight of water expressed in a variety of English and metric units.
1 磅/平方英寸(表压)
1 psig (gauge)
=

=

=

=

=

=
2.3068

2.036

0.0689

0.0703

6894.757

6.8948
水柱高度(英尺)
foot of water head
水银柱高度(英寸)
inch of mercury head
巴(压强)
bar
kgm/cm2 (千克/厘米2)
kgm/cm2 (kilograms/centimeter2)
N/m2 (牛顿/米2)
N/m2 (newton/meter2)
kPa (千帕)
kPa (kilopascal)
1英尺水柱
1 foot of water
=

=

=

=

=
0.4335

0.0305

2988.8837

0.33457

0.02989
磅/平方英寸(表压)
psig
kgm/cm2 (千克/厘米2)
kgm/cm2 (kilograms/centimeter2)
N/m2 (牛顿/米2)
N/m2 (newton/meter2)
kPa (千帕)
kPa (kilopascal)
巴(压强)
bar
1巴(压强)
1 bar
=

=

=

=

=
100000.0

14.50377

100.0

10197.1621

33.456
N/m2 (牛顿/米2)
N/m2 (newton/meter2)
磅/平方英寸(表压)
psig
kPa (千帕)
kPa (kilopascal)
kgm/cm2 (千克/厘米2)
kgm/cm2 (kilograms/centimeter2)
水柱高度(英尺)
foot of water head
1N/m2 (牛顿/米2)
1 N/m2 (newton/meter2)
=

=

=
1.0

0.000010197

0.000145
帕(帕斯卡) = 0.001千帕
Pa (pascal) = 0.001 kPa (kilopascal)
kgm/cm2 (千克/厘米2)
kgm/cm2
磅/平方英寸(表压)
psig (gauge)
1千克/厘米2
1 kilogram/centimeter2
=

=
98066.5

14.2233
N/m2 (牛顿/米2)
N/m2 (newton/meter2)
磅/平方英寸(表压)
psig
ANSI B16.5尺寸参数 - 法兰和法兰连接件
ANSI B16.5 Dimensional Data – Flanges and Flanged Fittings
尺寸
Dimensions‡
钻孔
Drilling
公称通径
Nominal
Pipe Size
外径
Outside
Diameter
孔数
Number
of Holes
螺栓直径
Diameter
of Bolt
螺栓圆周直径
Diameter of
Bolt Circle
(英寸)
(In.)
(英寸)
(In.)
(英寸)
(In.)
(英寸)
(In.)
DN15
1/2
3.5041/22.38
DN20
3/4
3.8841/22.75
DN25
1
4.2541/23.12
DN32
1-1/4
4.6241/23.50
DN40
1-1/2
5.0041/23.88
DN50
2
6.0045/84.75
DN65
2-1/2
7.0045/85.50
DN80
3
7.5045/86.00
DN100
4
9.0085/87.50
DN150
6
11.0083/49.50
DN200
8
13.5083/411.75
DN250
10
16.00127/814.25
DN300
12
19.00127/817.00
‡ 尺寸和螺栓符合ANSI B16.5标准的150磅钢法兰。
 螺栓孔的直径比螺栓直径大1/8英寸以上。
‡ Dimensions and bolts conform to ANSI B16.5 for 150 lb. steel flanges.
 Bolt holes are 1/8" larger in diameter than the required bolts.
真空系数
Vacuum Factors
  真空可以被认为缺少压力。真空是以标准大气压的负压和理论完全真空来测量的。
  Vacuum may be thought of as the absence of pressure. It is the measure of negative pressure between standardized atmospheric pressure and a theoretically perfect vacuum.
1各标准大气压
1 Std. Atmosphere
=

=

=

=

=
14.6959

760.0

1.0332276

1.01325

101.325
磅/平方英寸(绝对压强)
psia (absolute)
毫米汞柱压力
mm (millimeter) of mercury head
kgm/cm2 (千克/厘米2)
kgm/cm2 (kilograms/centimeter2)
巴(压强)
bar
kPa (千帕)
kPa (kilopascal)
1毫米
1 mm
=0.03937英寸
inch
1微米汞柱
1 micron of mercury
=

=
0.001

0.000019336
毫米汞柱压力
mm (millimeter) of mercury head
磅/平方英寸(表压)
psig (gauge)
1毫米汞柱
1 mm of mercury
=1000.0微米汞柱压力
micron of mercury head
1英寸
1 inch
=25.4毫米
mm (millimeter)
1英寸汞柱
1 inch of mercury
=

=
25400.0

0.4912
微米汞柱压力
micron of mercury head
磅/平方英寸(表压)
psig
1英寸水柱
1 inch of water
=

=
0.0361

1868.2742
磅/平方英寸(表压)
psig
微米汞柱压力
micron of mercury head
1 磅/平方英寸(表压)
1 psig (gauge)
=27.6817英寸水柱压力
inch of water head
不要将本样本中的测试数据用在压缩空气或其它气体上。如果需要关于专用于压缩空气和其它气体的抗龟裂热塑塑料管道系统请参阅Chemtrol Chem-Aire®产品样本。
Do not use or test the products in this catalog with compressed air or other gases. See Chemtrol Chem-Aire® literature for information about shatter-resistant thermoplastic piping systems specifically designed for compressed air and other gases.





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