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Flange type multi-level metal hard seal butterfly valve

A valve is a mechanical device that controls the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium. Valves are the basic components in piping systems. Valve fittings, like pumps in technology, are often discussed as a separate category.

Key words:

Classification:

Cast steel valve series

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Description


A valve is a mechanical device that controls the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium. Valves are the basic components in piping systems. Valve fittings, like pumps in technology, are often discussed as a separate category. The valve may be operated manually or with a hand wheel, handle or pedal, and may also be controlled to vary the pressure, temperature and flow rate of the fluid medium. The valve can perform continuous or repeated operations on these changes, such as safety valves installed in hot water systems or steam boilers. In more complex control systems, automatic control valves are used as required by external inputs (I. e., to adjust the changing set point of the flow through the pipeline). The automatic control valve does not need to be manually operated according to its input and setting, so that the valve can accurately control the various requirements of the fluid medium. Valves can also be divided into cast iron valves, cast steel valves, stainless steel valves, chromium molybdenum steel valves, chromium molybdenum vanadium steel valves, dual phase steel valves, plastic valves, non-standard customized valve materials, etc.

◆ Main outline connection dimension

DN L H D343H D643H D943H PN0.6MPa PN1.0MPa
mm Inches Short Long H1 A1 B1 H2 A2 B2 H3 A3 B3 D D1 Z-Fd D D1 Z-Fd
40 1 106 140 107 330 180 200 605 245 72 530 250 255 130 100 4-14 150 110 4-18
50 2 108 150 112 350 180 200 625 245 72 530 250 255 140 110 4-14 165 125 4-18
65 2 112 170 115 370 180 200 645 245 72 530 250 255 160 130 4-14 185 145 8-18
80 3 114 180 120 380 180 200 675 355 92 565 250 255 190 150 4-18 200 160 8-18
100 4 127 190 138 420 180 200 715 355 92 600 250 255 210 170 4-18 220 180 8-18
125 5 140 200 164 460 180 200 800 355 92 640 250 255 240 200 8-18 250 210 8-18
150 6 140 210 175 555 270 280 850 250 170 705 300 315 265 225 8-18 285 240 8-22
200 8 152 230 200 760 400 425 925 250 170 775 300 315 320 280 8-18 340 295 8-22
250 10 165 250 243 830 400 425 1035 450 220 945 300 315 375 335 12-18 395 350 12-22
300 12 178 270 250 895 450 560 1070 450 220 1070 300 315 440 395 12-22 445 400 12-22
350 14 190 290 280 950 450 560 1190 450 280 1140 300 315 490 445 12-22 505 460 16-22
400 16 216 310 305 1190 535 580 1250 650 280 1210 300 315 540 495 16-22 565 515 16-26
450 18 222 330 350 1255 535 580 1295 650 280 1335 575 714 595 550 16-22 615 565 20-26
500 20 229 350 380 1305 535 580 1455 850 380 1415 575 714 645 600 20-22 670 620 20-26
600 24 267 390 445 1340 570 660 1585 850 380 1605 656 810 755 705 20-26 780 725 20-30
700 28 292 430 480 1520 750 550 1700 1250 380 1844 656 810 860 810 24-26 895 840 24-30
800 32 318 470 530 1710 750 550 1865 1250 380 2040 656 810 975 920 24-30 1015 950 24-33
900 36 330 510 580 1810 750 550 2015 1500 580 2255 785 863 1075 1020 24-30 1115 1050 28-33
1000 40 410 550 650 1960 900 750 2226 1500 580 2380 785 863 1175 1120 28-30 1230 1160 28-36
1200 48 470 630 760 2250 1000 925 2640 785 863 1405 1340 32-33 1455 1380 32-39

 

◆ Main outline connection dimension

DN L H D343H D643H D943H PN1.6MPa PN2.5MPa
mm Inches Short Long H1 A1 B1 H2 A2 B2 H3 A3 B3 D D1 Z-Fd D D1 Z-Fd
50 2 108 150 112 350 180 200 625 245 72 530 250 255 165 125 4-18 165 125 4-18
65 2 112 170 115 370 180 200 625 245 72 530 250 255 185 145 8-18 185 145 8-18
80 3 114 180 120 380 180 200 645 245 72 565 250 255 200 160 8-18 200 160 8-18
100 4 127 190 138 420 180 200 675 355 92 600 250 255 220 180 8-18 235 190 8-22
125 5 140 200 164 460 180 200 715 355 92 640 250 255 250 210 8-18 270 220 8-26
150 6 140 210 175 555 270 280 800 355 92 705 300 315 285 240 8-22 300 250 8-26
200 8 152 230 200 760 400 425 850 250 170 775 300 315 340 295 12-22 360 310 12-26
250 10 165 250 243 830 400 425 925 250 170 945 300 315 405 355 12-26 425 370 12-30
300 12 178 270 250 895 450 560 1035 450 220 1070 300 315 460 410 12-26 485 430 16-30
350 14 190 290 280 950 450 560 1070 450 220 1140 300 315 520 470 16-26 555 490 16-33
400 16 216 310 305 1190 535 580 1190 450 220 1210 300 315 580 525 16-30 620 550 16-36
450 18 222 330 350 1255 535 580 1250 650 280 1335 575 714 640 585 20-30 670 600 20-36
500 20 229 350 380 1305 535 580 1290 650 280 1415 575 714 715 650 20-33 730 660 20-36
600 24 267 390 445 1340 570 660 1455 850 380 1605 656 810 840 770 20-36 845 770 20-39
700 28 292 430 480 1520 750 550 1585 850 380 1844 656 810 910 840 24-36 960 875 24-42
800 32 318 470 530 1710 750 550 1700 1250 380 2040 656 810 1025 950 24-39 1085 990 24-48
900 36 330 510 580 1810 750 550 1865 1250 380 2255 785 863 1125 1050 28-39 1185 1090 28-48
1000 40 410 550 650 1960 900 750 2015 1250 380 2380 785 863 1255 1170 28-42 1320 1210 28-56
1200 48 470 630 760 2250 1000 925 2250 1250 380 2640 785 863 1485 1390 32-48 1530 1420 32-56

Note: The flange size in this table is in accordance with JB/T79 standard series 1 and EN 1092-1/2, and the structure length is in accordance with GB/T12221, API609 and EN558 standards.

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