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公稱通徑 Nominal Pipe Size		外徑 End DIA		壁厚 Wall		螺母厚度 Nut	螺帽每英寸的螺紋扣數 Threads Per inch	球面凸緣厚度 Male Flange	定位口高度 Bearing	公稱裝配長度 Length Assem Nominal	結構尺寸 Laying Length	流通孔徑 Bore
公稱通徑 Nominal Pipe Size		D min		C min		G min	H	F min	h min	L	E	d2
DN	NPS	承插焊 Socket	螺紋 Socket	承插焊 Socket	螺紋 Socket	G min	H	F min	h min	L	承插焊 Socket	螺紋 Socket
6 8 10	1/8 1/4 3/8	21.8 21.8 25.9	14.7 19.1 22.9	3.2 3.3 3.5	2.5 3.1 3.2	3.2 3.2 3.5	16 16 14	3.2 3.2 3.5	1.5 1.5 1.5	41 41 46	21 21 41	7.4 10.9 13.9
15 20 25	1/2 3/4 1	31.2 37.1 45.5	27.7 33.5 41.4	4.1 4.3 5.0	3.8 4.0 4.6	3.7 4.1 4.5	14 11 11	3.7 4.1 4.6	1.5 1.8 1.9	49 57 62	24 29 30	17.5 22.2 28.4
32 40 50	11/4 11/2 2	54.9 61.5 75.2	50.5 57.2 70.1	5.3 5.6 6.1	4.9 5.1 5.6	5.2 5.6 6.4	10 10 10	5.4 5.9 6.6	2.2 2.3 2.7	71 77 86	37 38 39	36.5 42.4 53.9
65 80	21/2 3	91.7 109.2	85.3 102.4	7.7 8.3	7.1 7.7	7.1 8.0	8 8	7.5 8.3	3.1 3.6	102 109	56 59	65.3 79.9
●活接頭只適用于3000及3000以下級別；管件級別代號與管子壁厚等級的關系見后。 ●接管尺寸及承插孔徑d1、流通孔徑d2和承插孔深度J與ASME B16.11規定相同 ●Unions only applie to the class 3000 and below it; the relations of pressure grade and schedule refer to hereafter. ●Dimensions of pipe, socket diameter d1, broe diameter d2 and the length of the depth of socket J are same to requirements of ASME B16.11.

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