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Pneumatic flanged gate 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.

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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

Nominal pressure PN DN(mm) L D D1 D2 b Z-Fd H H1 D0 WT(kg)
PN1.6MPa 50 250 160 125 100 16 4-F18 950 570 180 36
65 270 180 145 120 18 4-F18 1050 596 180 53
80 280 195 160 135 20 8-F18 1080 635 200 72
100 300 215 180 155 20 8-F18 1145 645 250 90
125 320 245 210 185 22 8-F18 1210 685 250 120
150 350 280 240 210 24 8-F18 1300 720 320 132
200 400 335 295 265 26 12-F23 1660 940 400 258
250 450 405 355 320 30 12-F25 1790 1050 400 297
300 500 460 410 375 30 12-F25 1990 1150 450 420
350 550 520 470 435 34 16-F25 2090 1170 450 558
400 600 580 525 485 36 16-F30 2290 1325 500 840
450 650 640 585 545 40 20-F30 2485 1465 500 1110
500 700 705 650 608 44 20-F34 2640 1590 550 1380
600 800 840 770 718 48 20-F41 2940 1720 550 1620
PN2.5MPa 50 250 160 125 100 20 4-F18 950 570 180 36
65 270 180 145 120 22 8-F18 1050 596 180 55
80 280 195 160 135 22 8-F18 1080 635 200 76
100 300 230 190 160 24 8-F23 1145 645 250 94
125 325 270 220 188 28 8-F25 1210 685 250 126
150 350 300 250 218 30 8-F25 1300 720 320 136
200 400 360 320 278 34 12-F25 1660 940 400 265
250 450 425 370 332 36 12-F30 1790 1020 400 300
300 500 485 430 390 50 16-F30 1990 1150 450 436
350 550 550 490 448 44 16-F34 2090 1170 450 580
400 600 610 550 505 48 16-F34 2290 1325 500 860
450 650 660 600 555 50 20-F34 2485 1465 500 1260

Note: The flange size in this table is in accordance with GB/T9113-2010, and the structure length is in accordance with GB/T 12221-2005.

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