盲板 法蘭蓋也稱盲板法蘭、盲板。是中間不帶孔的法蘭,供封住管道堵頭用。作用與焊接封頭及絲扣管帽是一樣的,只不過盲板法蘭和絲扣管帽可以隨時卸下來,而焊接封頭則不行。密封面的形式種類較多,有全平面、突面、凹凸面、榫槽面、環(huán)連接面。 | | 主要連接尺寸 壓力 | 公稱通徑 | 承插深度 | 螺栓孔 | Bolting | 中心圓直徑 | 孔數(shù) | 孔徑 | Diam of Bolt | 螺栓長度 | RF面 | RJ面 | Y | K | Z | L | inch | H1 | H2 | 150LB | 1/2 | 9.7 | 60.3 | 4 | 15.9 | 1/2 | 57.2 | - | 3/4 | 11.2 | 69.9 | 4 | 15.9 | 1/2 | 63.5 | - | 1 | 12.7 | 79.3 | 4 | 15.9 | 1/2 | 63.5 | 76.2 | 1¼ | 14.2 | 88.9 | 4 | 15.9 | 1/2 | 69.9 | 82.6 | 1½ | 15.7 | 98.6 | 4 | 15.9 | 1/2 | 69.9 | 82.6 | 2 | 17.5 | 120.7 | 4 | 19.1 | 5/8 | 82.6 | 95.3 | 2½ | 19.1 | 139.7 | 4 | 19.1 | 5/8 | 88.9 | 101.6 | 3 | 20.6 | 152.4 | 4 | 19.1 | 5/8 | 88.9 | 101.6 | 3½ | - | 177.8 | 8 | 19.1 | 5/8 | 88.9 | 101.6 | 4 | - | 190.5 | 8 | 19.1 | 5/8 | 88.9 | 101.6 | 5 | - | 215.9 | 8 | 22.2 | 3/4 | 95.3 | 108 | 6 | - | 241.3 | 8 | 22.2 | 3/4 | 101.6 | 114.3 | 8 | - | 298.5 | 8 | 22.2 | 3/4 | 108 | 120.7 | 10 | - | 362 | 12 | 25.4 | 7/8 | 114.3 | 127 | 12 | - | 431.8 | 12 | 25.4 | 7/8 | 120.7 | 133.4 | 14 | - | 476.2 | 12 | 28.6 | 1 | 133.4 | 146.1 | 16 | - | 539.8 | 16 | 28.6 | 1 | 133.4 | 146.1 | 18 | - | 577.9 | 16 | 31.8 | 1⅛ | 146.1 | 158.8 | 20 | - | 635 | 20 | 31.8 | 1⅛ | 158.8 | 171.5 | 24 | - | 749.3 | 20 | 34.9 | 1¼ | 171.5 | 184.2 | 壓力 | 公稱通徑 | 螺紋長度 | 承插深度 | 螺栓孔 | Bolting | 中心圓直徑 | 孔數(shù) | 孔徑 | Diam of Bolt | 螺栓長度 | RF面 | RJ面 | Q | Y | K | Z | L | inch | H1 | H2 | 300LB | 1/2 | 15.7 | 9.7 | 66.5 | 4 | 15.9 | 1/2 | 63.5 | 76.2 | 3/4 | 15.7 | 11.2 | 82.6 | 4 | 19.1 | 5/8 | 76.2 | 88.9 | 1 | 17.5 | 12.7 | 88.9 | 4 | 19.1 | 5/8 | 76.2 | 88.9 | 1¼ | 20.6 | 14.2 | 98.6 | 4 | 19.1 | 5/8 | 82.6 | 95.3 | 1½ | 22.4 | 15.7 | 114.3 | 4 | 22.2 | 3/4 | 88.9 | 101.6 | 2 | 28.4 | 17.5 | 127 | 8 | 19.1 | 5/8 | 88.9 | 101.6 | 2½ | 31.8 | 19.1 | 149.2 | 8 | 22.2 | 3/4 | 101.6 | 114.3 | 3 | 31.8 | 20.6 | 168.3 | 8 | 22.2 | 3/4 | 108 | 120.7 | 3½ | 36.6 | - | 184.2 | 8 | 22.2 | 3/4 | 108 | 127 | 4 | 36.6 | - | 200.2 | 8 | 22.2 | 3/4 | 114.3 | 127 | 5 | 42.9 | - | 235 | 8 | 22.2 | 3/4 | 120.7 | 133.4 | 6 | 46 | - | 269.8 | 12 | 22.2 | 3/4 | 120.7 | 139.7 | 8 | 50.8 | - | 330.2 | 12 | 25.4 | 7/8 | 139.7 | 152.4 | 10 | 55.6 | - | 387.4 | 16 | 28.6 | 1 | 158.8 | 171.5 | 12 | 60.5 | - | 450.9 | 16 | 31.8 | 1⅛ | 171.5 | 184.2 | 14 | 63.5 | - | 514.4 | 20 | 31.8 | 1⅛ | 177.8 | 190.5 | 16 | 68.3 | - | 571.5 | 20 | 34.9 | 1¼ | 190.5 | 203.2 | 18 | 69.9 | - | 628.7 | 24 | 34.9 | 1¼ | 196.9 | 209.6 | 20 | 73.2 | - | 685.8 | 24 | 34.9 | 1¼ | 203.2 | 222.3 | 24 | 82.6 | - | 812.8 | 24 | 41.3 | 1½ | 228.6 | 254 | 壓力 | 公稱通徑 | 螺紋長度 | 承插深度 | 螺栓孔 | Bolting | 中心圓直徑 | 孔數(shù) | 孔徑 | Diam of Bolt | 螺栓長度 | RF面 | RJ面 | Q | Y | K | Z | L | inch | H1 | H2 | 600LB | 1/2 | 15.7 | 9.7 | 66.5 | 4 | 15.9 | 1/2 | 76.2 | 76.2 | 3/4 | 15.7 | 11.2 | 82.6 | 4 | 19.1 | 5/8 | 88.9 | 88.9 | 1 | 17.5 | 12.7 | 88.9 | 4 | 19.1 | 5/8 | 88.9 | 88.9 | 1¼ | 20.6 | 14.2 | 98.6 | 4 | 19.1 | 5/8 | 95.3 | 95.3 | 1½ | 22.4 | 15.7 | 114.3 | 4 | 22.2 | 3/4 | 108 | 108 | 2 | 28.4 | 17.5 | 127 | 8 | 19.1 | 5/8 | 108 | 108 | 2½ | 31.8 | 19.1 | 149.2 | 8 | 22.2 | 3/4 | 120.7 | 120.7 | 3 | 35.1 | 20.6 | 168.3 | 8 | 22.2 | 3/4 | 127 | 127 | 3½ | 39.6 | - | 184.2 | 8 | 25.4 | 7/8 | 139.7 | 139.7 | 4 | 41.1 | - | 215.9 | 8 | 25.4 | 7/8 | 146.1 | 146.1 | 5 | 47.8 | - | 266.8 | 8 | 28.6 | 1 | 165.1 | 165.1 | 6 | 50.8 | - | 292.1 | 12 | 28.6 | 1 | 171.5 | 171.5 | 8 | 57.2 | - | 349.2 | 12 | 31.8 | 1⅛ | 196.9 | 196.9 | 10 | 65 | - | 431.8 | 16 | 34.9 | 1¼ | 215.9 | 215.9 | 12 | 69.9 | - | 489 | 20 | 34.9 | 1¼ | 222.3 | 222.3 | 14 | 73.2 | - | 527.1 | 20 | 38.1 | 1⅜ | 235 | 235 | 16 | 77.7 | - | 603.2 | 20 | 41.3 | 1½ | 254 | 254 | 18 | 79.2 | - | 654.1 | 20 | 44.5 | 1⅝ | 273.1 | 273.1 | 20 | 82.6 | - | 723.9 | 24 | 44.5 | 1⅝ | 285.8 | 292.1 | 24 | 91.9 | - | 838.2 | 24 | 50.8 | 1⅞ | 330.2 | 336.6 | 壓力 | 公稱通徑 | 螺紋長度 | 承插深度 | 螺栓孔 | Bolting | 中心圓直徑 | 孔數(shù) | 孔徑 | Diam of Bolt | 螺栓長度 | RF面 | RJ面 | Q | Y | K | Z | L | inch | H1 | H2 | 900LB | 1/2 | 22.4 | 9.7 | 82.6 | 4 | 22.2 | 3/4 | 108 | 108 | 3/4 | 25.4 | 11.2 | 88.9 | 4 | 22.2 | 3/4 | 114.3 | 114.3 | 1 | 28.4 | 12.7 | 101.6 | 4 | 25.4 | 7/8 | 127 | 127 | 1¼ | 30.2 | 14.2 | 111.2 | 4 | 25.4 | 7/8 | 127 | 127 | 1½ | 31.8 | 15.7 | 124 | 4 | 28.6 | 1 | 139.7 | 139.7 | 2 | 38.1 | 17.5 | 165.1 | 8 | 25.4 | 7/8 | 146.1 | 146.1 | 2½ | 47.8 | 19.1 | 190.5 | 8 | 28.6 | 1 | 158.8 | 158.8 | 3 | 41.1 | - | 190.5 | 8 | 25.4 | 7/8 | 146.1 | 146.1 | 4 | 47.8 | - | 235 | 8 | 31.8 | 1⅛ | 171.5 | 171.5 | 5 | 53.8 | - | 279.4 | 8 | 34.9 | 1¼ | 190.5 | 190.5 | 6 | 57.2 | - | 317.5 | 12 | 31.8 | 1⅛ | 190.5 | 190.5 | 8 | 63.5 | - | 393.7 | 12 | 38.1 | 1⅜ | 222.3 | 222.3 | 10 | 71.4 | - | 469.9 | 16 | 38.1 | 1⅜ | 235 | 235 | 12 | 76.2 | - | 533.4 | 20 | 38.1 | 1⅜ | 254 | 254 | 14 | 82.6 | - | 558.8 | 20 | 41.3 | 1½ | 273.1 | 279.4 | 16 | 85.9 | - | 616 | 20 | 44.5 | 1⅝ | 285.8 | 292.1 | 18 | 88.9 | - | 685.8 | 20 | 50.8 | 1⅞ | 323.9 | 336.6 | 20 | 91.9 | - | 749.3 | 20 | 54 | 2 | 349.3 | 362 | 24 | 101.6 | - | 901.7 | 20 | 66.7 | 2½ | 438.2 | 457.2 | 壓力 | 公稱通徑 | 螺紋長度 | 承插深度 | 螺栓孔 | Bolting | 中心圓直徑 | 孔數(shù) | 孔徑 | Diam of Bolt | 螺栓長度 | RF面 | RJ面 | Q | Y | K | Z | L | inch | H1 | H2 | 1500LB | 1/2 | 22.4 | 9.7 | 82.6 | 4 | 22.2 | 3/4 | 108 | 108 | 3/4 | 25.4 | 11.2 | 88.9 | 4 | 22.2 | 3/4 | 114.3 | 114.3 | 1 | 28.4 | 12.7 | 101.6 | 4 | 25.4 | 7/8 | 127 | 127 | 1¼ | 30.2 | 14.2 | 111.3 | 4 | 25.4 | 7/8 | 127 | 127 | 1½ | 31.8 | 15.7 | 124 | 4 | 28.6 | 1 | 139.7 | 139.7 | 2 | 38.1 | 17.5 | 165.1 | 8 | 25.4 | 7/8 | 146.1 | 146.1 | 2½ | 47.8 | 19.1 | 190.5 | 8 | 28.6 | 1 | 158.8 | 158.8 | 3 | - | - | 203.2 | 8 | 31.8 | 1⅛ | 177.8 | 177.8 | 4 | - | - | 241.3 | 8 | 34.9 | 1¼ | 196.9 | 196.9 | 5 | - | - | 292.1 | 8 | 41.3 | 1½ | 247.7 | 247.7 | 6 | - | - | 317.5 | 12 | 38.1 | 1⅜ | 260.4 | 266.7 | 8 | - | - | 393.7 | 12 | 44.5 | 1⅝ | 292.1 | 323.9 | 10 | - | - | 482.6 | 12 | 50.8 | 1⅞ | 336.6 | 342.9 | 12 | - | - | 571.5 | 16 | 54 | 2 | 374.7 | 387.4 | 14 | - | - | 635 | 16 | 60.3 | 2¼ | 406.4 | 425.5 | 16 | - | - | 704.9 | 16 | 66.7 | 2½ | 444.5 | 469.9 | 18 | - | - | 774.7 | 16 | 73 | 2¾ | 495.3 | 527.1 | 20 | - | - | 831.9 | 16 | 79.4 | 3 | 539.8 | 565.2 | 24 | - | - | 990.6 | 16 | 92 | 3½ | 616 | 647.7 | 壓力 | 公稱通徑 | 螺紋長度 | 螺栓孔 | Bolting | 中心圓直徑 | 孔數(shù) | 孔徑 | Diam of Bolt | 螺栓長度 | RF面 | RJ面 | Q | K | Z | L | inch | H1 | H2 | 2500LB | 1/2 | 28.4 | 88.9 | 4 | 22.2 | 3/4 | 120.7 | 120.7 | 3/4 | 31.8 | 95.2 | 4 | 22.2 | 3/4 | 127 | 127 | 1 | 35.1 | 108 | 4 | 25.4 | 7/8 | 139.7 | 139.7 | 1¼ | 38.1 | 130 | 4 | 28.6 | 1 | 152.4 | 152.4 | 1½ | 44.5 | 146.1 | 4 | 31.8 | 1⅛ | 171.5 | 171.5 | 2 | - | 171.5 | 8 | 28.6 | 1 | 177.8 | 177.8 | 2½ | - | 196.9 | 8 | 31.8 | 1⅛ | 196.9 | 203.2 | 3 | - | 228.6 | 8 | 34.9 | 1¼ | 222.3 | 228.6 | 4 | - | 273.1 | 8 | 41.3 | 1½ | 254 | 260.4 | 5 | - | 323.9 | 8 | 47.6 | 1¾ | 298.5 | 311.2 | 6 | - | 368.3 | 8 | 54 | 2 | 342.9 | 355.6 | 8 | - | 438.2 | 12 | 54 | 2 | 381 | 393.7 | 10 | - | 539.7 | 12 | 66.7 | 2½ | 489 | 508 | 12 | - | 619.2 | 12 | 73 | 2¾ | 539.8 | 558.8 | |