Product model: SD341X/SD342X
Nominal diameter: DN50mm-DN2000mm
Nominal pressure: PN0.6MPa~1.6MPa
Applicable medium: water, oil
Applicable temperature: 10℃-80℃
Body material: carbon steel, stainless steel
Product Structure Features
The structure principle of expansion butterfly valve is especially applicable to the manufacturing of large-caliber valve. Expansion butterfly valve is not only widely used in petroleum, gas, chemical engineering, water treatment and other general industries, but also used in the cooling water system of thermal power plants.
The Main Structure Features Include
1.Small in size and light in weight, easy disassembly, installation and maintenance, it can be installed wherever needed.
2.Simple and compact structure, low operating torque, 90 degree rotation, and quick opening.
3.Flow characteristics tend to be linear, with good regulation performance.
4.The connection between the butterfly plate and the valve rod is pin free, which overcomes possible internal leakage points.
5.The sealing parts can be replaced, and is reliable, achieving bi-directional sealing.
6.The valve can be designed of flange connection and clamp connection.
7.The drive mode can be manual, electric or pneumatic.
Main external dimensions
| Nominal diameter | Dimensions (reference value) | Flange size and bolt size (standard value) | ||||||||||||||||||
| H | H1 | Maximum length L | Minimum length L |
length L |
A | B | 0.6MPa | 1.0MPa | 1.6MPa | |||||||||||
| mm | in | D | D1 | D2 | n-d | D | D1 | D2 | n-d | D | D1 | D2 | n-d | |||||||
| 50 | 2 | 80 | 309 | 164 | 138 | 151 | 180 | 200 | 140 | 110 | 88 | 4-14 | 165 | 125 | 99 | 4-18 | 165 | 125 | 99 | 4-18 |
| 65 | 2-1/2 | 95 | 337 | 190 | 154 | 172 | 180 | 200 | 160 | 130 | 108 | 4-14 | 185 | 145 | 118 | 4-18 | 185 | 145 | 118 | 4-18 |
| 80 | 3 | 98 | 347 | 195 | 163 | 177 | 180 | 200 | 190 | 150 | 124 | 4-18 | 200 | 160 | 132 | 8-18 | 200 | 160 | 132 | 8-18 |
| 100 | 4 | 114 | 373 | 227 | 184 | 206 | 180 | 200 | 210 | 170 | 144 | 4-18 | 220 | 180 | 156 | 8-18 | 220 | 180 | 156 | 8-18 |
| 125 | 5 | 128 | 405 | 254 | 195 | 215 | 180 | 200 | 240 | 200 | 176 | 8-18 | 250 | 210 | 184 | 8-18 | 250 | 210 | 184 | 8-18 |
| 150 | 6 | 139 | 440 | 240 | 201 | 225 | 270 | 280 | 265 | 225 | 199 | 8-18 | 285 | 240 | 211 | 8-22 | 285 | 240 | 211 | 8-22 |
| 200 | 8 | 174 | 612 | 265 | 215 | 245 | 400 | 425 | 320 | 280 | 254 | 8-18 | 340 | 295 | 266 | 8-22 | 340 | 294 | 266 | 12-22 |
| 250 | 10 | 215 | 693 | 295 | 235 | 265 | 400 | 425 | 375 | 335 | 309 | 12-18 | 395 | 350 | 319 | 12-22 | 405 | 355 | 319 | 12-26 |
| 300 | 12 | 245 | 747 | 308 | 254 | 282 | 450 | 560 | 440 | 395 | 363 | 12-22 | 445 | 400 | 370 | 12-22 | 460 | 410 | 370 | 12-26 |
| 350 | 14 | 270 | 802 | 325 | 271 | 300 | 450 | 560 | 490 | 445 | 413 | 12-22 | 505 | 460 | 429 | 16-22 | 520 | 470 | 429 | 16-26 |
| 400 | 16 | 305 | 991 | 345 | 283 | 314 | 535 | 580 | 540 | 495 | 463 | 16-22 | 565 | 515 | 480 | 16-26 | 580 | 525 | 480 | 16-30 |
| 450 | 18 | 325 | 1037 | 370 | 314 | 340 | 535 | 580 | 595 | 550 | 518 | 16-22 | 615 | 565 | 530 | 20-26 | 640 | 585 | 548 | 20-30 |
| 500 | 20 | 360 | 1127 | 377 | 316 | 346 | 535 | 580 | 645 | 600 | 568 | 20-22 | 670 | 620 | 582 | 20-26 | 715 | 650 | 609 | 20-33 |
| 600 | 24 | 445 | 1377 | 446 | 388 | 417 | 570 | 660 | 755 | 705 | 667 | 20-26 | 780 | 725 | 682 | 20-30 | 840 | 770 | 720 | 20-36 |
| 700 | 28 | 505 | 1496 | 445 | 395 | 425 | 750 | 660 | 860 | 810 | 772 | 24-26 | 895 | 840 | 794 | 24-30 | 910 | 840 | 794 | 24-36 |
| 800 | 32 | 560 | 1584 | 479 | 425 | 455 | 750 | 550 | 975 | 920 | 878 | 24-30 | 1015 | 950 | 901 | 24-33 | 1025 | 950 | 901 | 24-39 |
| 900 | 36 | 630 | 1676 | 515 | 455 | 485 | 750 | 550 | 1075 | 1020 | 978 | 24-30 | 1115 | 1050 | 1001 | 28-33 | 1125 | 1050 | 1001 | 28-39 |
| 1000 | 40 | 680 | 1760 | 525 | 465 | 495 | 900 | 750 | 1175 | 1120 | 1078 | 28-30 | 1230 | 1160 | 1112 | 28-36 | 1255 | 1170 | 1112 | 28-42 |
| 1200 | 48 | 795 | 2018 | 574 | 512 | 542 | 1000 | 925 | 1405 | 1340 | 1295 | 32-33 | 1455 | 1380 | 1328 | 32-39 | 1485 | 1390 | 1328 | 32-48 |
| 1400 | 56 | 900 | 2363 | 599 | 547 | 572 | 1000 | 925 | 1630 | 1560 | 1510 | 36-36 | 1675 | 1530 | 1530 | 36-42 | 1685 | 1590 | 1530 | 36-48 |
| 1600 | 64 | 1100 | 2723 | 640 | 589 | 615 | 1000 | 925 | 1830 | 1760 | 1710 | 40-36 | 1915 | 1820 | 1750 | 40-48 | 1930 | 1820 | 1750 | 40-56 |
| 1800 | 72 | 1124 | 2844 | 725 | 670 | 695 | 1100 | 980 | 2045 | 1970 | 1718 | 44-39 | 2115 | 2020 | 1950 | 44-48 | 2130 | 2020 | 1950 | 44-56 |
| 2000 | 80 | 1292 | 3127 | 764 | 680 | 722 | 1100 | 980 | 2265 | 2180 | 2125 | 48-42 | 2325 | 2230 | 2150 | 48-48 | 2345 | 2230 | 2150 | 48-62 |
Add: No. 175, Lane 250, Fangde Road, Jiading District, Shanghai
Tel: +86-21-51863336
Fax: +86-21-34677003
E-mail: shldv@139.com
Web: Http://www.shldv.com
Fujian plant site：2233 Maosheng Road, Nan 'an City, Fujian Province
Factory telephone：+86-21-31007333
Shanghai Public Network Anbei: 31011402004337Sitemap
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