API598，螺纹标准：NPT,BSPT,BSP,DIN2999. |
| | SIZE | inch | 1/2 | 3/4 | 1 | 11/4 | 11/2 | 2 | 21/2 | 3 | 4 | 6 | | mm | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 150 | | A | 16.5 | 21 | 24 | 28.8 | 36 | 45.8 | 56.5 | 73.6 | 101 | 150 | | B | 32 | 32 | 36.6 | 45.5 | 53.4 | 83 | 75.7 | 91.5 | 119.5 | 176 | | C | 38 | 38 | 48 | 56 | 58 | 61 | 87 | 71 | 83.6 | 86 | | D | 32.5 | 32.5 | 39 | 48 | 56 | 87.5 | 83 | 97 | 123.5 | 190 |
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| | SIZE | inch | 1/2 | 3/4 | 1 | 11/4 | 11/2 | 2 | 21/2 | 3 | 4 | 6 | mm | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 150 | A | 110 | 110 | 123 | 179 | 186.5 | 198.5 | 208.5 | 232 | 260 | 356 | B | 53 | 53 | 60 | 81.3 | 88.5 | 99.5 | 110.5 | 131 | 159 | 220 | C | 42 | 42 | 47 | 58 | 66.5 | 78 | 92 | 109 | 138 | 199 | D | 32 | 32 | 40 | 48 | 49 | 54 | 59 | 60 | 62 | 72 | E | 14 | 19 | 25 | 32 | 39 | 50 | 59 | 75 | 100 | 146 | L | 50 | 52 | 62 | 72 | 72 | 80 | 90 | 93 | 100 | 118 |
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| SIZE | inch | 1/2 | 3/4 | 1 | 11/4 | 11/2 | 2 | 21/2 | 3 | 4 | 6 | mm | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 150 | A | 110 | 110 | 123 | 179 | 186.5 | 198.5 | 208.5 | 232 | 260 | 356 | B | 53 | 53 | 60 | 81.3 | 88.5 | 99.5 | 110.5 | 131 | 159 | 220 | C | 42 | 42 | 47 | 58 | 66.5 | 78 | 92 | 109 | 138 | 199 | D | 32 | 32 | 40 | 48 | 49 | 54 | 59 | 60 | 62 | 72 | E | 14 | 19 | 25 | 32 | 39 | 50 | 59 | 75 | 100 | 146 | L | 50 | 52 | 62 | 72 | 72 | 80 | 90 | 93 | 100 | 118 |
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| SIZE | inch | 1/2 | 3/4 | 1 | 11/4 | 11/2 | 2 | 21/2 | 3 | 4 | 6 | mm | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 150 | A | 110 | 110 | 123 | 179 | 186.5 | 198.5 | 208.5 | 232 | 260 | 356 | B | 53 | 53 | 60 | 81.3 | 88.5 | 99.5 | 110.5 | 131 | 159 | 220 | C | 42 | 42 | 47 | 58 | 66.5 | 78 | 92 | 109 | 138 | 199 | D | 32 | 32 | 40 | 48 | 49 | 54 | 59 | 60 | 62 | 72 | E | 15 | 20 | 25 | 32 | 39 | 50 | 61 | 75 | 92 | 145 | L | 50 | 50 | 60 | 68 | 71 | 78 | 85 | 90 | 96 | 118 |
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| SIZE | inch | 1/2 | 3/4 | 1 | 11/4 | 11/2 | 2 | 21/2 | 3 | 4 | 6 | mm | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 150 | A | 32 | 32 | 36.6 | 45 | 53.4 | 63 | 75.7 | 91.5 | 119.5 | 176 | B | 34.5 | 34.5 | 39 | 48 | 56 | 65.3 | 80 | 96 | 122 | 188 | C | 15 | 21.4 | 27.4 | 34 | 40.5 | 53 | 66.5 | 79 | 104.8 | 157 | D | 8 | 14 | 20 | 25 | 31 | 43 | 55 | 68 | 92 | 140 | E | 45 | 54 | 60 | 61 | 64 | 78 | 85 | 101.6 | 110 | 141 | L | 85 | 94 | 106 | 115 | 120 | 140 | 150 | 165.1 | 180 | 220 |
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| SIZE | inch | 1/2 | 3/4 | 1 | 11/4 | 11/2 | 2 | 21/2 | 3 | 4 | 6 | mm | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 150 | A | 14 | 21 | 24 | 28.8 | 36 | 45 | 56.5 | 75.8 | 98 | 150 | B | 32 | 32 | 36.6 | 45.5 | 53.4 | 63 | 75.7 | 91.5 | 119.5 | 176 | C | 40 | 40 | 48 | 56 | 58 | 62 | 70 | 77 | 79 | 86 | D | 32.5 | 32.5 | 39 | 48 | 56 | 67 | 83 | 99.6 | 124 | 182 | L | 57 | 57 | 72 | 80 | 82 | 88 | 100 | 100.5 | 115 | 130 |
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| | SIZE | inch | 1/2 | 3/4 | 1 | 11/4 | 11/2 | 2 | 21/2 | 3 | 4 | 6 | | mm | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 150 | A | 110 | 110 | 123 | 179 | 186.5 | 198.5 | 208.5 | 232 | 260 | 356 | B | 53 | 53 | 60 | 81.3 | 88.5 | 99.5 | 110.5 | 131 | 159 | 220 | C | 42 | 42 | 47 | 58 | 66.5 | 78 | 92 | 109 | 138 | 199 | D | 7.5 | 7.5 | 12 | 14 | 16 | 18 | 18 | 23 | 24 | 30 | L | 36 | 36 | 43 | 51 | 52 | 59 | 64 | 65 | 70 | 82 |
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| SIZE | inch | 1/2 | 3/4 | 1 | 11/4 | 11/2 | 2 | 21/2 | 3 | 4 | 6 | mm | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 150 | A | 110 | 110 | 123 | 179 | 186.5 | 198.5 | 208.5 | 232 | 260 | 356 | B | 53 | 53 | 60 | 81.3 | 88.5 | 99.5 | 110.5 | 131 | 159 | 220 | C | 42 | 42 | 47 | 58 | 66.5 | 78 | 92 | 109 | 138 | 199 | D | 7.5 | 7.5 | 12 | 14 | 16 | 18 | 18 | 23 | 24 | 30 | L | 36 | 36 | 43 | 51 | 52 | 59 | 64 | 65 | 70 | 82 |
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| 规格 | a | c | b | 1" | 69 | 30 | 84.6 | 11/4" | 70 | 38.4 | 85.7 | 11/2" | 75.2 | 46.5 | 106.3 | 2" | 87.6 | 60 | 118.5 | 21/2" | 99.2 | 76.5 | 143.3 | 3" | 112.2 | 89 | 164.6 | 4" | 127.5 | 111.5 | 192 | 5" | 128 | 134 | 226 |
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