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Pneumatic metal hard seal flange butterfly valve
Published: March 22, 2016 Author: 【191566.com】 Hits: Times

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Multi-level hard seal flange butterfly valve

Product introduction

Butterfly valves are widely used in thermal pipelines, boiler auxiliary machinery systems, petrochemical and metallurgical industries due to their compact structure, small size, light weight, convenient operation, reliable performance and simple maintenance. They are used to cut or adjust various corrosive and non-corrosive materials. Corrosive medium. Its products are divided into centerline, single eccentric, double eccentric and triple eccentric structures. Metal hard seal butterfly valve is an eccentric structure. It is an extension and development of the general soft seal butterfly valve to the medium and high pressure field. In addition to the original characteristics of the butterfly valve, it also has anti-aging, radiation, durable, long life, high temperature and pressure resistance. Wide range of applications.

Features and Benefits of Multi-layer Hard Seal Butterfly Valves

1. Multi-level hard seal butterfly valve seal is composed of soft and hard metal sheets laminated. Through high-precision machining, it is embedded on the butterfly plate to match the valve seat. It has the dual advantages of metal seal and elastic seal. Excellent sealing performance at high temperatures.
2. It adopts three-dimensional eccentric structure, and there is almost no friction between the valve seat and the butterfly plate, and it has a tighter sealing function as it closes.
3. Compact structure, flexible operation, small size, light weight, reliable sealing performance, convenient maintenance and long service life.
4. Equipped with a sealing adjustment device. If the sealing performance is reduced after long-term use, the sealing ring of the butterfly plate can be adjusted closer to the valve seat to restore the original sealing performance, which greatly increases the service life.
5. The sealing vice is made of stainless steel, and adopts special processing during the manufacturing process. It has the characteristics of high temperature resistance, high pressure, wear resistance and corrosion resistance.

Features and Benefits of Metal Elastic Hard Seal Butterfly Valves

Along with the rapid development of science and technology in today's world, metal-sealed elastic butterfly valves are displayed in front of the world with their unique charm, such as small size, light weight, flexible operation, easy installation, simple structure, erosion resistance and high temperature resistance. One standard valve 's metal elastic seal butterfly valve is highly favored for its rigorous design, exquisite appearance and fashionable appearance.
Its outstanding features are as follows:

1. Full rigidity and reliable sealing: In order to eliminate the sensitivity of the metal seal butterfly valve to the deformation of the valve body, the rigidity of the valve body must be increased. This valve adopts the enterprise design standard higher than the minimum wall thickness of the national standard butterfly valve body. The internal and external ribs are reasonably arranged to make them rigid, thereby ensuring the reliability of the seal.
2. Opening freely, the operating torque is significantly reduced, and the improved sealing curve of the triple eccentric butterfly plate is more rounded, which means that the deformation of the valve seat is smaller , and the actual deformation of the valve seat is much smaller than the elasticity of the metal. range. Thus, the margin of elastic deformation of the valve seat is widened, and the elastic range of the material used will not be exceeded even under a high temperature state.
In addition, the axial displacement of the butterfly plate along the pipeline is also more trace, which will reduce the amount of deflection and deformation of the valve stem along the flow channel axis, and ensure the normal contact accuracy of the valve stem and the sleeve. Because of this, it can open freely and the operating torque is much smaller than other similar butterfly valve products. This extremely creative design idea has made Yibiao Valve a qualitative leap in the comprehensive quality and performance of some butterfly valve products.
3. The use of high temperature resistant materials and advanced spray welding technology enables the butterfly valve to reach a wide range of operating temperatures, thus meeting the requirements for temperature adjustment and low temperature conditions. One standard
4, the use of high-hardness materials and internal parts tend to streamline the shape design makes this valve resistant to erosion and long life.

Standards and specifications

Design and Manufacturing

Structure length

Pressure-temperature rating

Piping flange

Test and inspection

JB / T8527
GB12238

0 GB12221

JB / T74, GB9131

JB / T74-90
GB9112-9131 HG20592-20596

GB / T13927

Model, material and main parameters

Piping flange Nominal pressure
PN / MPa
Flange sealing surface Product number
JB / T74-90
HG20592
-20596
GB9112-
9131
0.25 Convex smooth surface D43H-2.5C D43W-2.5P D43W-2.5P8 D43W-2.5P3 D43W-2.5R D43W-2.5R8 43W-2.5R3
0.6 D43H-6C D43W-6P D43W-6P8 D43W-6P3 D43W-6R D43W-6R8 D43W-6R3
1.0 D43H-10C D43W-10P D43W-10P8 D43W-10P3 D43W-10R D43W-10R8 D43W-10R3
1.6 D43H-16C D43W-16P D43W-16P8 D43W-16P3 D43W-16R D43W-16R8 D43W-16R3
2.5 D43H-25 D43W-25P D43W-25P8 D43W-25P3 D43W-25R D43W-25R8 D43W-25R3
4.0 D43H-40 D43W-40P D43W-40P8 D43W-40P3 D43W-40R D43W-40R8 D43W-40R3
Material of main parts Valve body WCB ZG1Cr18Ni9Ti CF8 CF3 ZG1Cr18Ni
12Mo2Ti
CF8M CF3M
Pressure ring WCB ZG1Cr18Ni9Ti CF8 (304) CF3 (304L) ZG1Cr18Ni
12Mo2Ti
CF8M (316) CF3M (316L)
Butterfly Carbon steel surfacing
Cr13
ZG1Cr18Ni9Ti CF8 (304) CF3 (304L) ZG1Cr18Ni
12Mo2Ti
CF8M (316) CF3M (316L)
Valve stem 2Cr13 1Cr18Ni9Ti 0Cr19Ni9 00Cr19Ni11 1Cr18Ni
12Mo2Ti
0Cr17Ni12Mo2 00Cr17Ni14Mo2
Valve seat 1Cr18Ni9Ti 0Cr19Ni9 00Cr19Ni11 00Cr19Ni11 0Cr17
Ni12Mo2
00Cr17
Ni14Mo2
00Cr17Ni14Mo2
Applicable conditions Applicable medium steam,
Oil products
Corrosive media such as nitric acid Strongly oxidizing medium Corrosive media such as acetic acid Corrosive media such as urea
Worm gear butterfly valve Add "3" after valve type code D, example: D343H-16C
Pneumatic butterfly valve Add "6" after the valve type code D, Example: D643H-25 Air pressure 0.4 ~ 0.6MPa
Electric butterfly valve Add "9" after the valve type code D, for example: D943H-16C

Main dimensions and weight
Nominal pressure PN
(MPa)
Nominal diameter
DN (mm)
Size (mm) Weight (kg)
L D D1 D2 b d Z- φ d H1 H
short long D43 D343 D43 D343
O.25 100 127 190 205/210 170 145 14 4-18 114 270 330 151 216
125 140 200 235/240 200 175 14 8-18 130 294 368 197 267
150 140 21O 260/265 225 200 16 8-18 148 326 404 286 386
200 152 230 315/320 280 255 18 8-18 176 - 496 - 786
250 165 250 370/375 335 310 twenty two 12-18 210 - 558 - 1066
300 178 270 435/440 395 362 twenty two 12-23 238 - 632 - 1332
350 190 290 485/490 445 412 twenty two 12-23 270 - 372 - 1838
400 216 310 535/540 495 462 twenty two 12-23 302 - 714 - 248
450 222 330 590/595 550 518 twenty four 16-23 332 - 768 - 3373
500 229 350 640/645 600 568 twenty four 16-23 370 - 828 - 4405
600 267 390 755 705 670 twenty four 20-25 / 26 432 - 952 - 5675
700 292 430 860 810 775 26 24-25 / 26 470 - 1000 - 7346
800 318 470 975 920 880 26 24-30 530 - 1078 - 967
900 330 510 1075 1020 980 28 24-30 580 - 1180 - 12512
1000 410 550 1175 1120 1080 30 28-30 650 - 1272 - 16187
1200 470 630 1375 1320 1280 30 32-30 765 - 1418 - 2032
1400 530 710 1575 1520 1480 32 36-30 890 - 1519 - 2573
1600 600 790 1785/1790 1730 1690 32 40-30 1010 - 1629 - 3150
1800 670 870 1985 1930 1890 34 44-34 1090 - 1763 - 3883
2000 760 950 2185 2130 2090 34 48-34 1195 - 2094 - 4748
2200 - 1000 2400 2340 2292 36 52-41 1300 - 2430 - 6652
2400 - 1100 2600 2540 2492 38 56-48 1450 - 2850 - 8410
2600 - 1200 2805 2740 2695 40 60-33 1632 - 2963 - 11400
2800 - 1300 3030 2960 2910 42 64-36 1850 - 3192 - 13100
3000 - 1400 3230 3160 3110 42 68-36 2003 - 3307 - 14035
3200 - 1400 3430 3360 3310 44 72-36 2105 - 3412 - -
3400 - 1400 3630 3560 3510 46 76-36 2235 - 3490 - -
Flanged metal seal butterfly valve
Nominal pressure PN (MPa) Nominal
DN (mm)
Size (mm) Weight (kg)
L D D1 D2 b Z-φd H1 H
short long D43 D343 D43 343
0.6 40 106 140 130 100 80 16 4-14 76 198 248 7 11
50 108 150 140 110 90 16 4-14 85 202 254 9 12
65 112 170 160 130 110 16 4-14 95 222 278 115 16
80 114 180 185/190 150 125 18 4-18 106 246 312 13 20
1OO 127 190 205/210 170 145 18 4-18 114 270 330 165 twenty three
125 140 200 235/240 200 175 20 8-18 130 294 368 twenty two 29
150 140 210 260/265 225 200 20 8-18 148 326 404 305 405
200 152 230 315/320 280 255 twenty two 8-18 176 - 496 - 81
250 165 250 370/375 335 310 twenty four 12-18 210 - 558 - 108
300 178 270 435/440 395 362 twenty four 12-23 238 - 632 - 135
350 190 290 485/490 445 412 26 12-23 270 - 672 - 188
400 216 310 535/540 495 462 28 16-23 302 - 714 - 255
450 222 330 590/595 550 518 28 16-23 332 - 768 - 340
500 229 350 640/645 600 568 30 16-23 370 - 828 - 445
600 267 390 755 705 670 30 20-25 / 26 432 - 952 - 578
700 292 430 860 810 775 32 24-25 / 26 470 - 1000 - 749
800 318 470 975 920 880 34 24-30 530 - 1078 - 986
900 330 510 1075 1020 980 36 24-30 580 - 1180 - 1273
1000 410 550 1175 1120 1080 36 28-30 650 - 1272 - 1642
1200 470 630 1400 1340 1295 40 32-34 765 - 1418 - 2088
1400 530 710 1620 1560 1510 44 36-34 890 - 1519 - 2640
1600 600 790 1820 1760 1710 48 40-34 1010 - 1629 - 3230
1800 670 870 2045 1970 1910 50 44-41 1090 - 1763 - 3980
2000 760 950 2265 2180 2110 54 48-48 1195 - 2094 - 4860
2200 1000 2475 2390 2330 60 52-48 1300 - 2430 - 6780
2400 1100 2685 2600 2540 62 56-48 1450 - 2850 - 8570
2600 1200 2905 281O 2740 64 60-54 - - 3012 - 11500
2800 1300 3115 3020 2950 68 64-54 - - 3180 - 13500
3000 1400 3315 3220 3150 70 68-54 - - 3335 - 14730
Main dimensions and weight
Nominal
Pressure PN (MPa)
Nominal diameter
DN (mm)
Size (mm) weight
(kg)
L D D1 D2 b d Z- φ d H1 H
short long D43 D343 D43 D343
1.0 40 106 140 145/150 110 85 18 4-18 76 198 248 8 115
50 108 150 160/165 125 100 18 4-18 85 202 254 9 125
65 112 170 180/185 145 120 20 4-18 95 222 278 12 17
80 114 180 195/200 160 135 20 4-18 106 246 312 14 twenty one
1OO 127 190 215/220 180 155 twenty two 8-18 114 270 330 175 245
125 140 200 245/250 210 185 twenty four 8-18 130 294 368 255 305
150 140 21O 280/285 240 210 twenty four 8-23 148 326 404 32 425
200 152 230 335/340 295 265 26 8-23 176 - 496 - 86
250 165 250 390/395 350 320 26 12-23 210 - 558 - 114
300 178 270 440/445 400 368 28 12-23 238 - 632 - 142
350 190 290 500/505 460 428 28 12-23 270 - 672 - 198
400 216 310 565 515 482 30 12-25 / 26 302 - 714 - 268
450 222 330 615 565 532 30 20-25 / 26 332 - 768 - 358
500 229 350 670 620 585 32 20-25 / 26 370 - 828 - 468
600 267 390 780 725 685 36 20-30 432 - 952 - 608
700 292 430 895 840 800 36 24-30 470 - 1000 - 788
800 318 470 1010 950 905 38 24-34 530 - 1078 - 1038
900 330 510 1110 1050 1005 38 28-34 580 - 1180 - 1340
1000 410 550 1220 1160 1115 38 28-34 650 - 1272 - 1728
1200 470 630 1450 1380 1325 40 32-41 765 - 1418 - 2198
1400 530 710 1675 1590 1525 44 36-48 890 - 1519 - 2760
1600 600 790 1915 1820 1750 48 40-54 1010 - 1623 - 3470
1800 670 870 2115 2020 1950 50 44-54 1090 - 1763 - 4200
2000 760 950 2325 2230 2160 54 46-54 1195 - 2094 - 5360
1.6 40 106 140 145/150 110 85 16 4-18 76 198 248 85 12
50 108 150 160/165 125 100 16 4-18 85 202 254 95 13
65 112 170 180/185 145 120 18 4-18 95 222 278 125 175
80 114 180 195/200 160 135 20 8-18 106 246 312 145 215
1OO 127 190 215/220 180 155 20 8-18 114 270 330 18 25
125 140 200 245/250 210 185 twenty two 8-18 130 294 368 245 315
150 140 21O 280/285 240 210 twenty four 8-23 148 326 404 335 44
200 152 230 335/340 295 265 26 12-23 176 - 496 - 89
250 165 250 405 355 320 30 12-25 / 26 210 - 558 - 117
300 178 270 460 410 375 30 12-25 / 26 238 - 632 - 146
350 190 290 520 470 435 34 16-25 / 26 270 - 672 - 204
400 216 310 580 525 485 36 16-30 302 - 714 - 275
450 222 330 640 585 545 40 20-30 332 - 768 - 368
500 229 350 715 650 608 44 20-34 370 - 828 - 480
600 267 390 840 770 718 48 20-36 / 41 432 - 952 - 622
700 292 430 910 840 788 50 24-36 / 41 470 - 1000 - 808
800 318 470 1020/1025 950 898 52 24-41 530 - 1078 - 1066
900 330 510 1120/1125 1050 998 54 28-41 580 - 1180 - 1372
1000 410 550 1255 1170 1110 56 28-42 / 48 650 - 1272 - 1762
1200 470 630 1485 1390 1325 58 32-48 / 54 765 - 1418 - 2242
1400 530 710 1685 1590 1525 60 36-48 / 54 890 - 1419 - 2900
1600 600 790 1930 1820 1750 68 40-58 1010 - 1629 - 3820

Main dimensions and weight

Nominal pressure
PN (MPa)

Nominal diameter
DN (mm)
Size (mm) Weight (kg)
L D D1 D2 b Z-out d H1 H
short long D43 D343 D43 D343
2.5 40 106 140 145/150 110 85 18 4/18 76 198 248 95 13
50 108 150 160/165 125 100 20 4/18 85 202 254 105 14
65 112 170 180/185 145 120 twenty two 8/18 95 222 288 14 19
80 114 180 195/200 160 135 twenty two 8/18 106 246 322 165 235
100 127 190 230 190 160 twenty four 8/23 122 278 355 205 275
125 140 200 270 220 188 28 8/25/26 140 304 392 27 34
150 140 210 300 250 218 30 8/25/26 156 336 428 37 475
200 152 230 360 310 278 34 12/25/26 186 - 520 - 92
250 165 250 425 370 332 36 12/30 220 - 574 - 121
300 178 270 485 430 390 40 16/30 250 - 668 - 152
350 190 290 550/555 490 448 44 16/34 288 - 705 - 212
400 216 310 610/620 550 505 48 16/34/36 322 - 750 - 284
450 222 330 660/670 600 555 50 20-34 / 36 348 - 802 - 380
500 229 350 730 660 610 52 20/41/36 378 - 862 - 498
600 267 390 840/845 770 718 56 20-41 434 - 1006 - 640
700 292 430 955/960 875 815 60 24/48/42 470 - 1078 - 920
800 318 470 1070/1085 990 930 64 24/48 580 - 1180 - 1300
900 330 510 1180/1185 1090 1025 66 28/54/48 650 - 1272 - 1540
1000 410 550 1305/1320 1210 1140 68 28/58 765 - 1418 - 1880
1200 470 630 1545/1530 1420 1350 72 32/58 890 - 1510 - 2460
1400 530 710 1750/1755 1640 1560 78 36/65 1010 - 1629 - 3257
4.0 40 106 140 145/150 110 85 18 4/18 96 198 248 11 145
50 108 150 160/165 125 100 20 4/18 105 202 254 121 156
65 112 170 180/185 145 120 twenty two 8/18 115 222 288 157 208
80 114 180 195/200 160 135 twenty two 8/18 125 246 322 183 253
100 127 190 230/235 190 160 twenty four 8/23 140 280 355 225 295
125 140 200 270 220 188 28 8/25/26 160 305 392 30 37
150 140 210 300 250 218 30 8/25/26 176 336 428 41 515
200 152 230 375 320 282 38 12/30 206 - 520 - 97
250 165 250 445/450 385 345 42 12/34 240 - 580 - 135
300 178 270 510/515 450 408 46 16/34 270 - 675 - 170
350 190 290 570/580 510 465 52 16/34/36 310 - 728 - 235
400 216 310 655/660 585 535 58 16/41 350 - 770 - 320
450 222 330 680/685 610 560 60 20/41 380 - 820 - 430
500 229 350 755 670 612 62 20-48 / 42 420 - 880 - 560
600 267 390 890 795 730 62 20/54/48 450 - 1030 - 715
700 292 430 995 900 835 68 24/54/48 490 - 1100 - 1050
800 318 470 1135/1140 1030 960 76 24/58 610 - 1210 - 1420

Note: The product model in the table adopts JB / T74-90 series 2 (that is, the original machine standard JB74-90-59) flange standards, such as HG20592-20596, GB9112-GB9131,
JB / T74-90 series 1 flange standard (equivalent to the German DIN standard), "G" should be added after the product model. Example: D43H-25-G

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Company address: National Unified Service Hotline: Jinzhong Technology Park, Dongli District, Tianjin: 400-000-8533
Switchboard: 022-26798533 / 022-26793370
Fax: 022-26798534
Postcode: 300240

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