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A:Concentric Butterfly Valve

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Concentric Butterfly Valve has a resilient rubber seat with a metal disc. This type of butterfly valves can be used for isolating or regulating flow. Wafer, Lug or U type flanged body style fit between FF or RF flanges PTFE bushing ensure the maximum shaft support and centralized alignment 360°polished disc assures positiveon-off Hard-Backed Cartridge seat or Edge-Boot seat The pin,spline or square connection are all available Universal ISO 5211 mounting pad


Technical Data

Size DN40-DN1200
General Design ISO 5752/BS 5155/API 609
Mounting Pad ISO 5211
Face to Face API 609/EN 558-1 20 series etc.
Flange Drilling DIN 2501 PN10/16
Inspection and Test API 598

﹡For all available general design, face to face standard and flange drilling,please kindly contact CNBM directly.


Materials of Parts

Parts Description MaterialMaterial
1 Body Cast Iron/Ductile Iron/WCB
2 Bushing PTFE/Bronze
3 O-ring EPDM/NBR
4 Shaft Stainless Steel
5 Disc Stainless Steel/Al-Bronze/Ductile Iron
6 Seat EPDM/NBR/VITON/PTFE
7 Pin Stainless Steel

﹡For other material request,please kindly contact CNBM directly.

· ·

Dimensions

Size L H1 H2 H3 ØC n-ØD1 n-M Flange No ØN ØC1 n-Ød2 Round Square/DoubleD
DN NPS Ød1 Ød1 H
40 1-1/2" 33 68 139 30 110 4-18 4-M16 F05 65 50 4-8 12.6 12.1 9
50 2" 43 80 161 30 125 4-18 4-M16 F05 65 50 4-8 12.6 12.1 9
65 2-1/2" 46 89 175 30 145 4-18 4-M16 F05 65 50 4-8 12.6 12.1 9
80 3" 46 95 181 30 160 8-18 8-M16 F05 65 50 4-8 12.6 12.1 9
100 4" 52 114 200 30 180 8-18 8-M16 F07 90 70 4-10 15.77 12.1 11
125 5" 56 127 213 30 210 8-18 8-M16 F07 90 70 4-10 18.92 14.1 14
150 6" 56 139 226 30 240 8-22 8-M20 F07 90 70 4-10 18.92 18.1 14
200 8" 60 175 260 37 295 12-22 12-M20 F10 125 102 4-12 22.1 18.1 17
250 10" 68 203 292 37 355 12-26 12-M24 F10 125 102 4-12 28.45 22.1 22
300 12" 78 242 337 37 410 12-26 12-M24 F10 125 102 4-12 31.6 28.2 22
350 14" 78 267 368 45 470 16-26 16-M24 F10 125 102 4-12 31.6 28.2 22
400 16" 102 298.6 400 51.2 525 16-30 16-M27 F14 175 140 4-18 33.15 28.2 22
450 18" 114 318 422 51.2 585 20-30 20-M27 F14 175 140 4-18 38 36.2 27
500 20" 127 355 480 64.2 650 20-33 20-M30 F14 175 140 4-18 41.15 36.2 27
600 24" 154 464 562 70.2 770 20-36 20-M33 F16 210 165 4-22 50.65 48.2 36

﹡For special Stem head dimensions, please kindly contact CNBM directly.

· ·

Dimensions

Size L H1 H2 H3 ØC n-ØD1 Fla-ngeNo ØN ØC1 n-Ød2 Ro-und Square/DoubleD
DN NPS Ød1 Ød1 H
700 28" 165 505 624 66 840 24-30 F25 300 254 8-18 55 60.2 46
750 30" 166 499 646 66 900 24-33 F25 300 254 8-18 55 60.2 46
800 32" 190 576 672 66 950 24-33 F25 300 254 8-18 55 60.2 46
900 36" 203 637 720 118 1050 28-33 F25 300 254 8-18 75 72.2 55
1000 40" 216 701 800 142 1160 28-36 F25 300 254 8-18 85 72.2 55
1200 48" 254 844 940 150 1380 32-39 F30 350 298 8-22 105 / /

B:Double Flanged Butterfly Valve

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Double flanged style fits between FF or RF flanges
High strength body and large safety factor ensure the body can resist high pipe pressure
Overall Vulcanization liner with good performance of resisting tearing apart and deformation
Pin connection one piece shaft with the features of counter bending and simple reliable structure
Universal ISO 5211 mounting pad

Technical Data

Size DN50-DN1200
General Design ISO 5752/BS 5155/EN 1092
Mounting Pad ISO 5211
Face to Face BS 5155/EN 558-1 13 series etc.
Flange Drilling DIN 2501 PN10/16
Inspection and Test API 598

﹡For all available general design, face to face standard and flange drilling,please kindly contact CNBM directly.

Materials of Parts

Parts Description MaterialMaterial
1 Body Cast Iron/Ductile Iron
2 O-ring EPDM/NBR
3 Bushing PTFE/Bronze
4 Shaft Stainless Steel
5 Disc Stainless Steel/Bronze/Ductile Iron
6 Seat EPDM/NBR
7 Pin Stainless Steel

﹡For other material request,please kindly contact CNBM directly.

· ·

Dimensions of Double Flanged Butterfly Valve

Size L H1 H2 H3 DIN2501 PN16 Flange No ØN ØC1 n-Ød2 Round Square/DoubleD
DN NPS ØC n-ØD1 Ød1 Ød1 H
50 2" 108 110 80 30 125 4-18 F05 65 50 4-8 12.6 12.1 9
65 2-1/2" 112 134 80 30 145 4-18 F05 65 50 4-8 12.6 12.1 9
80 3" 114 131 95 30 160 8-18 F05 65 50 4-8 12.6 12.1 9
100 4" 127 150 114 30 180 8-18 F07 90 70 4-10 15.77 12.1 11
125 5" 140 170 113 30 210 8-18 F07 90 70 4-10 18.92 14.1 14
150 6" 140 180 139 30 240 8-22 F07 90 70 4-10 18.92 18.1 14
200 8" 152 210 175 37 295 12-22 F10 125 102 4-12 22.1 18.1 17
250 10" 165 245 203 37 355 12-26 F10 125 102 4-12 28.45 28.2 22
300 12" 178 276 242 37 410 12-26 F10 125 102 4-12 31.6 28.2 22
350 14" 190 328 250 45 470 16-26 F10 125 102 4-12 31.6 28.2 22
400 16" 216 376 277 51.2 525 16-30 F14 175 140 4-18 33.15 28.2 22
450 18" 222 406.6 295.2 51.2 585 20-30 F14 175 140 4-18 38 36.2 27
500 20" 229 448 330 64.2 650 20-33 F14 175 140 4-18 41.15 36.2 27
600 24" 267 518 420 70.2 770 20-36 F16 210 165 4-22 50.65 48.2 36
700 28" 292 560 450 66 840 24-30 F25 300 254 8-18 55 60.2 46
800 32" 318 620 501 66 950 24-33 F25 300 254 8-18 55 60.2 46
900 36" 330 692 558 118 1050 28-33 F25 300 254 8-18 75 72.2 55
1000 40" 410 735 622 142 1170 28-36 F25 350 298 8-18 85 72.2 55
1200 48" 470 917 763 160 1390 32-39 F30 350 298 8-22 105 98.2 75

C:Double Eccentric Butterfly Valve

· · ·

Double Eccentric design disc may reduces friction of the sealing ring, and provide valve a long service life
Rubber and graphite compounds disc ring can meet different application demands
Overall weld body sealing
Two pieces stem design, taper pin connection between disc and shaft, which can ensure positive vibration proof
Universal ISO 5211 mounting pad

Technical Data

Size DN100-DN2000
General Design EN 593
Mounting Pad ISO 5211
Face to Face EN 558-1 13 14series
Flange Drilling EN 1092-16
Inspection and Test EN 12266/DIN 3230 Part 4

﹡For all available general design, face to face standard and flange drilling,please kindly contact CNBM directly.

Materials of Parts

Parts Description Material
1 Bolt Stainless Steel
2 End Cover Ductile Iron
3 O-ring EPDM
4 Bushing Bronze
5 Body Ductile Iron
6 Shaft Stainless Steel
7 Disc Pin Stainless Steel
8 Disc Ductile Iron
9 Retaining Ring Ductile Iron
10 Rubber Sealing EPDM
11 Body Sealing Stainless Steel
12 Stuffing EPDM
13 Stuffing Box Gunmetal
14 Shaft Stainless Steel

﹡For other material request,please kindly contact CNBM directly.

Dimensions of Double Eccentric Butterfly Valve

Size La Lb D ØC D2 b n-ØD1 H1 H2 D0
DN NPS
100 4" 127 190 220 180 158 24 8-19 130 260 250
150 6" 140 210 285 240 212 26 8-23 150 279 250
200 8" 152 230 340 295 268 30 12-23 180 308 250
250 10" 165 250 405 355 320 32 12-28 210 351 250
300 12" 178 270 460 410 378 32 12-28 240 401 250
350 14" 190 290 520 470 438 36 16-28 280 440 350
400 16" 216 310 580 525 490 38 16-31 300 463 400
450 18" 222 330 640 585 548 40 20-31 335 508 400
500 20" 229 350 715 650 610 42 20-34 380 583 500
600 24" 267 390 840 770 725 48 20-36 440 673 500
700 28" 292 430 910 840 793 54 24-36 490 736 500
750 30" 318 470 975 900 844 54 24-36 530 790 500
800 32" 318 470 1025 950 900 58 24-39 570 822 500
900 36" 330 510 1125 1050 1000 62 24-39 625 935 500
1000 40" 410 550 1255 1170 1116 66 28-42 700 985 500
1100 44" 470 630 1355 1280 1218 66 32-43 760 1080 500
1200 48" 470 630 1485 1390 1330 66 32-49 820 1154 500
1400 56" 530 710 1685 1590 1530 66 36-49 920 1235 500
1600 64" 600 790 1930 1820 1750 70 40-56 1045 1415 500
1800 72" 670 870 2130 2020 1950 70 44-56 1170 1725 500
2000 80" 760 950 2345 2230 2150 75 48-62 1301 1684 500

D:Other Types of Butterfly Valve

Grooved Butterfly Valve U type Butterfly Valve Anti-sweat Butterfly Valve
High Performance Butterfly Valve PTFE Covered Butterfly Valve