技术参数(2)Engineering Data (2)

帅哥

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.)
	D	n	P	L1	L2	L3	L4	E0	E1	h
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	0.540	18	0.05556	0.228	0.4018	0.1667	0.5946	0.47739	0.49163	0.04444
DN15 1/2	0.840	14	0.07143	0.320	0.5337	0.2143	0.7815	0.75843	0.77843	0.05714
DN20 3/4	1.050	14	0.07143	0.339	0.5457	0.2143	0.7935	0.96768	0.98887	0.05714
DN25 1	1.315	11-1/2	0.08696	0.400	0.6828	0.2609	0.9845	1.21363	1.23863	0.06957
DN32 1-1/4	1.660	11-1/2	0.08696	0.420	0.7068	0.2609	1.0085	1.55713	1.58338	0.06957
DN40 1-1/2	1.900	11-1/2	0.08696	0.420	0.7235	0.2609	1.0252	1.79609	1.82234	0.06957
DN50 2	2.375	11-1/2	0.08696	0.436	0.7565	0.2609	1.0582	2.26902	2.29627	0.06957
DN65 2-1/2	2.875	8	0.12500	0.682	1.1375	0.2500	1.5712	2.71953	2.76216	0.10000
DN80 3	3.500	8	0.12500	0.766	1.2000	0.2500	1.6337	3.34062	3.38850	0.10000
DN100 4	4.500	8	0.12500	0.844	1.3000	0.2500	1.7337	4.33438	4.38712	0.10000

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 3.50 4 1/2 2.38 DN20 3/4 3.88 4 1/2 2.75 DN25 1 4.25 4 1/2 3.12 DN32 1-1/4 4.62 4 1/2 3.50 DN40 1-1/2 5.00 4 1/2 3.88 DN50 2 6.00 4 5/8 4.75 DN65 2-1/2 7.00 4 5/8 5.50 DN80 3 7.50 4 5/8 6.00 DN100 4 9.00 8 5/8 7.50 DN150 6 11.00 8 3/4 9.50 DN200 8 13.50 8 3/4 11.75 DN250 10 16.00 12 7/8 14.25 DN300 12 19.00 12 7/8 17.00 ‡ 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.