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Products

National standard gate valve

Standard
Design and production is according to G B/T12234
Structure length is according to GB/T12221
Flange connection size is according to JB/T79
Inspection is according to JB/T9092


Test pressure

Test item Shell test Seal test Upper seal test Air seal test
Medium Water Air
Unit MPa MPa MPa MPa
    Nominal pressure(MPa) 1 0 1 5 1.1 1.1  
1.6 2.4 1.8 1.8  
2.5 3.8 2.8 2.8  
4.0 6.0 4.4 4.4 0.5-0.7
6.4 9 6 7 0 7 0  
10.0 15.0 11.0 11.0  
16.0 24.0 18 0 18 0  

 

 

 

 

 

Materials for main parts

Name Materials
Valve body/valve deck CF8 CF3 CF8M CF3M WCB LCB WC6 WC9 C5
Wedge disc CF8 CF3 CF8M CF3M WCB LCB WC6 WC9 C5
Valve rod F304 F304L F316 F316L 2Cr13 F304 F304 F304 F304
Valve rodNut Aluminium bronze
Packing PTFE Graphite
Gasket PTFE Graphite
Gland CF8 CF3 CF8M CF3M WCB LCB WC6 WC9 C5
Bolt Stainless steel 35CrMoA
Nut Stainless steel 45, 35CrMoA
Hand wheel Cast steel


Main connection dimensions

Model Nominal diameter(mm) Dimensions (mm)
L D D1 D2 b-f z-Фd H DO
Z41H -10
Z41W -10
Z41Y -10
Z541H -10
Z541W -10
Z541Y -10
Z941H -10
Z941W -10
Z941Y -10		 15 130 95 65 45 12-2 4-Ф14 185 120
20 150 105 75 55 14-2 4-Ф14 200 120
25 160 115 85 65 14-2 4-Ф14 225 140
32 180 135 100 78 16-2 4-Ф18 275 160
40 165 145 110 85 16-3 4-Ф18 290 160
50 180 160 125 100 16-3 4-Ф18 345 200
65 195 180 145 120 18-3 4-Ф18 360 220
80 210 195 160 135 18-3 4-Ф18 380 240
100 230 215 180 155 20-3 8-Ф18 430 280
125 255 245 210 185 22-3 8-Ф18 520 300
150 280 280 240 210 22-3 8-Ф23 600 320
200 330 335 295 265 22-3 8-Ф23 765
765		 400
400
250 380 390 350 320 24-3 12-Ф23 930 450
300 420 440 400 368 26-3 12-Ф23 1080 500
350 450 500 460 428 26-4 16-Ф23 1200 500
400 480 565 515 482 26-4 16-Ф35 1400 550
450 510 615 565 532 26-4 20-Ф15 1500 600
500 540 670 620 585 28-4 20-Ф25 1630 650
600 600 780 725 685 28-5 20-Ф30 1830 700
700 660 895 840 800 30-5 20-Ф30 1930 750


Main connection dimensions

Model Nominal diameter(mm) Dimensions (mm)
L D D1 D2 b-f z-Фd H DO
Z41H -16
Z41W -16
Z41Y -16
Z541H -16
Z541W -16
Z541Y -16
Z941H -16
Z941W -16
Z941Y -16		 15 130 95 65 45 14-2 4-Ф14 185 120
20 150 105 75 55 14-2 4- Ф14 200 120
25 160 115 85 65 14-2 4-Ф14 225 140
32 180 135 100 72 16-2 4-Ф18 275 160
40 200 145 110 85 16-3 4-Ф18 295 200
50 250 160 125 100 16-3 4-Ф18 350 220
65 265 180 145 120 18-3 4-Ф18 370 240
80 280 195 160 135 20-3 8-Ф18 390 280
100 300 215 180 155 20-3 8-Ф18 435 300
125 325 245 210 185 22-3 8-Ф18 520 320
150 350 280 240 210 24-3 8-Ф23 610 350
200 400 335 295 265 26-3 12-Ф2 785 400
250 450 405 355 320 30-3 12-Ф25 930 450
300 500 460 410 375 30-4 12-Ф25 1080 500
350 550 520 470 435 34-4 16-Ф25 1200 550
400 600 580 525 485 36-4 16-Ф30 1400 600
450 650 640 585 545 40-4 20-Ф30 1500 650
500 700 705 650 608 44-4 20-Ф34 1630 700
600 800 840 770 718 48-5 20-Ф41 1830 750
700 900 910 840 788 50-5 24-Ф41 1930 800
800 1000 1020 950 898 52-5 24-Ф41 2030 850
900 1100 1120 1050 998 54-5 28-Ф41 2130 900
1000 1200 1255 1170 1110 56-5 28-Ф48 2230 950


Main connection dimensions

Model Nominal diameter (mm) Dimensions (mm)
L D D1 D2 b-f z-Фd H DO
Z41H -25
Z41W -25
Z41Y -25
Z541H -25
Z541W -25
Z541Y -25
Z941H -25
Z941W -25
Z941Y -25		 15 130 95 65 45 16-2 4-Ф14 185 120
20 150 105 75 55 16-2 4-Ф14 200 120
25 160 115 85 65 16-2 4-Ф14 225 140
32 180 135 100 78 18-2 4-Ф18 275 160
40 200 145 110 85 18-3 4-Ф18 295 200
50 250 160 125 100 20-3 4-Ф18 350 220
65 265 180 140 120 22-3 4-Ф18 370 240
80 280 195 160 135 22-3 8-Ф18 390 280
100 300 230 190 160 24-3 8-Ф23 435 300
125 325 270 220 188 28-3 8-Ф25 520 320
150 350 300 250 218 30-3 8-Ф25 610 350
200 400 360 310 278 34-3 12-Ф25 785 400
250 450 425 370 332 36-3 12-Ф30 930 450
300 500 485 430 390 40-4 12-Ф30 1080 500
350 550 550 490 448 44-4 16-Ф34 1250 550
400 600 610 550 505 48-4 16-Ф34 1430 600
450 650 660 600 555 50-4 20-Ф34 1520 650
500 700 730 660 610 52-4 20-Ф40 1650 700
600 800 840 770 718 56-5 20-Ф41 1850 750
700 900 955 875 815 60-5 24-Ф48 1950 800
800 1000 1070 990 930 64-5 24-Ф48 2050 850
900 1100 1180 1090 1025 66-5 28-Ф54 2150 900
1000 1200 1305 1210 1140 66-5 28-Ф58 2250 950


Main connection dimensions

Model Nominal diameter (mm) Dimensions (mm)
L D D1 D2 D6 b-f f1 z-Фd H
Z41H-40
Z41W-40
Z41Y-40
Z541H-40
Z541W-40
Z541Y-40
Z941H-40
Z941W-40
Z941Y-40		 15 130 95 65 45 40 16-2 4 4-Ф14 185
20 150 105 75 55 51 16-2 4 4-Ф14 200
25 160 115 85 65 58 16-2 4 4-Ф14 225
32 180 135 100 78 66 18-2 4 4-Ф18 275
40 200 145 110 85 76 18-3 4 4-Ф18 295
50 250 160 125 100 88 20-3 4 4-Ф18 350
65 280 180 145 120 110 22-3 4 8-Ф18 370
80 310 195 160 135 121 22-3 4 8-Ф18 390
100 350 230 190 160 150 24-3 4.5 8-Ф23 435
125 400 270 220 188 176 28-3 4.5 8-Ф25 520
150 450 300 250 218 204 30-3 4.5 8-Ф25 610
200 550 375 320 282 260 38-3 4.5 12-Ф30 970
250 650 445 385 345 313 42-3 4.5 12-Ф34 930
300 750 510 450 408 364 46-4 4.5 16-Ф34 1080
350 850 570 510 465 422 52-4 5 16-Ф34 1250
400 950 655 585 535 474 58-4 5 16-Ф41 1430
450 050 680 610 560 524 60-4 5 20-Ф41 1520
500 50 755 670 612 576 62-4 5 20-Ф48 1650
600 1350 890 795 730 678 62-5 6 20-Ф54 1850


Main connection dimensions

Model Nominal diameter (mm) Dimensions (mm)
L D D1 D2 D6 b-f f1 z-Фd H
Z41H-64
Z41W-64
Z41Y-64
Z541H-64
Z541W-64
Z541Y-64
Z941H-64
Z941W-64
Z941Y-64		 15 170 105 75 55 40 18-2 4 4-Ф14 185
20 190 125 90 68 51 20-2 4 4-Ф18 200
25 210 135 100 78 58 22-2 4 4-Ф18 225
32 230 150 110 82 66 24-2 4 4-Ф23 280
40 240 165 125 95 76 24-3 4 4-Ф23 300
50 250 175 135 105 88 26-3 4 4-Ф23 360
65 280 200 160 130 110 28-3 4 8-Ф23 385
80 310 210 170 140 131 30-3 4 8-Ф23 400
100 350 250 200 168 150 32-3 4.5 8-Ф25 450
125 400 295 240 202 176 36-3 4.5 8-Ф30 540
150 450 340 280 240 204 38-3 4.5 8-Ф34 630
200 550 405 345 300 260 44-3 4.5 12-Ф34 820
250 650 470 400 352 313 48-3 4.5 12-Ф41 960
300 750 530 460 412 364 54-4 4.5 16-Ф41 1130
350 850 595 525 475 422 60-4 5 16-Ф41 1300
400 950 670 585 525 474 66-4 5 16-Ф48 1450
450 1050 715 630 570 524 70-4 5 20-Ф48 1550
500 1150 800 705 640 576 70-4 5 20-Ф54 1680
600 1350 930 820 750 678 76-5 6 20-Ф58 1900


Main connection dimensions

Model Nominal diameter (mm) Dimensions (mm)
L D D1 D2 D6 b-f f1 z-Фd H
Z41H-100
Z41W-100
Z41Y-100
Z541H-100
Z541W-100
Z541Y-100
Z941H-100
Z941W-100
Z941Y-100		 15 170 105 75 55 40 20-2 4 4-Ф14 185
20 190 125 90 68 51 22-2 4 4-Ф18 200
25 210 135 100 78 58 24-2 4 4-Ф18 220
32 230 150 110 82 66 24-2 4 4-Ф23 280
40 240 165 125 95 76 26-3 4 4-Ф23 300
50 250 195 145 112 88 28-3 4 4-Ф25 360
65 280 220 170 138 110 32-3 4 8-Ф25 385
80 310 230 180 148 121 34-3 4 8-Ф25 400
100 350 265 210 172 150 38-3 4.5 8-Ф30 450
125 400 310 250 210 176 42-3 4,5 8-Ф34 540
150 450 350 290 250 204 46-3 4.5 12-Ф34 630
200 550 430 360 312 260 54-3 4.5 12-Ф41 820
250 650 500 430 382 313 60-3 4.5 12-Ф41 960
300 750 585 500 442 364 70-4 4.5 16-Ф48 1130
350 850 655 560 498 422 76-4 5 16-Ф54 1300
400 950 715 620 558 474 80-4 5 16-Ф54 1450
450 1050 770 675 615 524 84-4 5 16-Ф54 1550
500 1150 870 760 690 576 90-4 5 20-Ф58 1680
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