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Valves » Products »Butteryfly Valve Series
  • Butterfly Valve ANSI815, 830 series butterfly valve is widely used in petroleum, chemical, industrial environment, water treatment, high-rise buildings, water supply and drainage pipeline, etc. The main structures are wafer type and flange type. And the structure characteristics of 815 ...
  • Resilient Seated Butterfly ValveWith the features of simple and compact construction and easy operation and repair, those products can be used in most numerical control occasions. On the site, front and back, right and left can arrive at the mutual exchange. The outstanding advantage for this resilient sealed butterfly valve is its security ...
  • Hard Sealing Butterfly ValveWenzhou Kerui Valve Industry Co., Ltd is a manufacture company possessing years of experience in the production and marketing in Wenzhou, China. So far, the second manufacturing center covers an area of 50000 square meters, and is equipped with CNC machining centers, more than 300 plasma welding...

Butteryfly Valve Series

Description:
This valve is an adjustable valve with simple structure. It also can be used in low pressure pipe as switch control. It has the throttling and cutting off function in corrosive, non-corrosive fluid medium pipelines. Butterfly valve is applicable to generator, coal gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, chemical smelting, and power generation, environmental protection, building water supply and drainage and other engineering system.

Features:
Butterfly valve features simple structure, small volume, light weight, less material consumption, small installation size, small drive moment and simple operation. It also has good flow regulating function and well closing sealing performance. Its reliability and other performance indicators are up to higher level. This butterfly valve has small flow resistance when being opened fully. And it has sensitive flow control when being opened between 15o and 70o. Therefore, this valve will be widely applied to flow control with large caliber. Most butterfly valves can be used to the medium with suspended solids. According to the strength of the seals, this butterfly valve can also be used for powder and grain medium.

Application:
815, 830 series butterfly valve is widely used in petroleum, chemical, industrial environment, water treatment, high-rise buildings, water supply and drainage pipeline, etc. The main structures are wafer type and flange type. And the structure characteristics of 815, 830 L series butterfly valve are that the rim of valve has convex and the design is screw holes single flange structure. Due to the use of Three Eccentric Structure, this butterfly valve has reliable sealing performance, which can ensure the butterfly plate does not contact seal seat when that opens. It can ensure the uniform load of seal seat and prolong the life. It ensures reliable seal, high temperature resistant, well wear resistance, well corrosion resistance, etc.

Model Illustration of Butterfly Valve Series:



Standard of Butterfly Valve Series:
Design standard: API609-83
Flange connection: ANSI B 16.5
Structural length: ANSI B 16.10-1992
Pressure test: API 598-82

Technical Parameters of Butterfly Valve:

Nominal diameter DN(mm) 830W 830L
2"~36" 2"~36"
Nominal pressure PN(Mpa) 150Lb 300Lb
Test pressure Strength test 3.0 7.5
Seal test 2.2 5.5
Suitable medium Water, steam, oil, and others
Suitable temperature -29℃~425℃


Part Materials of Butterfly Valve:

Item Materials
Body WCB, 304, 316, 316SS, CF8M
Plate WCB, 304, 316, 316SS, CF8M
Stem 316, 2Cr13, 1Cr18Ni9Ti
Seal ring 316, Fluoroplastics
Packing flexible graphite, fluoroplastics


815W Series ANSI:

Nominal diameter Structure length
(standard)
Outline dimensions
(reference value)
Connection size
(standard)
Reference weight
(kg)
L L1 H H0 D D1 D2 M Z-d
2" 50 43 108 110 345 152 120.5 92 M18 4-19 9
3" 80 49 114 125 380 190 152.5 127 M18 4-19 11
4" 100 56 127 145 415 229 190.5 157 M18 8-19 13
5" 125 64 140 165 455 254 216 186 M20 8-22 16
6" 150 70 140 175 545 279 241.5 216 M20 8-22 26
8" 200 71 150 210 645 343 298.5 270 M20 8-22 34
10" 250 76 160 250 695 406 362 324 M24 12-25 51
12" 300 86 178 285 830 483 432 381 M24 12-25 72
14" 350 92 190 320 900 533 476 413 M27 12-29 106
16" 400 102 216 355 980 597 540 470 M27 16-29 133
18" 450 114 222 380 1030 635 578 533 M30 16-32 176
20" 500 127 229 415 1110 699 635 584 M30 20-32 190
24" 600 154 267 475 1305 813 749.5 692 M33 20-35 394
30" 750 165 292 580 1525 985 914 857 M33 28-35 476
32" 800 190 318 630 1585 1060 978 914 M39 28-41 618
36" 900 203 330 680 1765 1168 1085 1022 M39 32-41 762

815L Series ANSI:

Nominal diameter Structure length
(standard)
Outline dimensions
(reference value)
Connection size
(standard)
Reference weight
(kg)
L H H0 D1 D2 M Z-d
6" 150 70 175 545 241.5 216 M20 8-22 28
8" 200 71 210 615 298.5 270 M20 8-22 36
10" 250 76 250 695 362 324 M24 12-25 53
12" 300 86 285 830 432 381 M24 12-25 74
14" 350 92 320 900 476 413 M27 12-29 110
16" 400 102 355 980 540 470 M27 16-29 138
18" 450 114 380 1030 578 533 M30 16-32 180
20" 500 127 415 1110 635 584 M30 20-32 196
24" 600 154 475 1305 749.5 692 M33 20-35 400
30" 750 165 580 1525 914 857 M33 28-35 482
36" 900 203 680 1765 1085 1022 M39 32-41 488


830W Series ANSI:

Nominal diameter Structure length
(standard)
Outline dimensions
(reference value)
Connection size
(standard)
Reference weight
(kg)
L L1 H H0 D D1 D2 M Z-d
2" 50 43 108 110 345 165 127 92 M18 8-19 9 20
3" 80 49 114 125 380 210 168 127 M20 8-22 12 29
4" 100 56 127 145 415 254 200 157 M20 8-22 13 35
5" 125 64 140 165 455 279 235 186 M20 8-22 18 40
6" 150 70 140 175 545 318 270 216 M20 12-22 28 81
8" 200 71 150 210 645 381 330 270 M24 12-26 37 94
10" 250 76 160 250 695 445 387 324 M27 16-29 56 158
12" 300 86 178 285 830 521 451 381 M30 16-32 79 183
14" 350 92 190 320 900 584 514 413 M30 20-32 116 239
16" 400 102 216 355 980 648 571 470 M33 20-35 146 302
18" 450 114 222 380 1030 711 628 533 M33 24-35 193 346
20" 500 127 229 415 1110 775 686 584 M33 24-35 209 434
24" 600 154 267 475 1305 914 813 692 M39 24-41 433 638
30" 750 165 292 580 1525 1092 997 857 M45 28-49 523 788
36" 900 203 330 680 1765 1270 1168 1022 M50 32-53 838 1146

830L Series ANSI:

Nominal diameter Structure length
(standard)
Outline dimensions
(reference value)
Connection size
(standard)
Reference weight
(kg)
L H H0 D1 D2 M Z-d
6" 150 76 175 545 270 216 M20 12-22 29
8" 200 89 210 615 330 270 M24 12-26 38
10" 250 114 250 695 387 324 M27 16-29 58
12" 300 114 285 830 451 381 M30 16-32 81
14" 350 127 320 900 514 413 M30 20-32 119
16" 400 140 355 980 591 470 M33 24-35 149
18" 450 152 380 1030 628 533 M33 24-35 198
20" 500 152 415 1110 686 584 M33 24-35 215
24" 600 178 475 1305 813 692 M39 24-41 436
30" 750 229 580 1525 997 857 M45 28-49 528
36" 900 241 680 1765 1168 1022 M50 32-52 843