Welcome to MLD Valve！
Model：D971H
Size：DN50-DN2000
Pressure：10Bar/16Bar/25Bar
Temperature：-20℃～200℃
Body material：Cast steel, Stainless Steel
Applicable medium：water supply and drainage system in tap water ,sewage, Building, chemicals Industries
Three Eccentric Wafer Butterfly Valve is used for water supply and drainage system in tap water ,sewage, Building, chemicals Industries ,usually used as an open-close equipment
Main part material
Body: Cast steel, Stainless Steel
Disc: Cast steel, Stainless Steel
Stem: Stainless Steel
Sealing ring: Stainless Steel/PTFE
Packing: Flexible Graphite/PTFE
Double /Three eccentric structure, strictly sealing ,long durable and lifetime .
Executive Standard
GB/T 9113.1
API 609 Category A
BS EN593/BS5155
| DN | L | H | HO | A | B | 0.6MPa | 1.0MPa | 1.6MPa | |||
| DO | n-Фd | DO | n-Фd | DO | n-Фd | ||||||
| 50 | 43 | 63 | 438 | 125 | 125 | 110 | 4-14 | 125 | 4-18 | 125 | 4-18 |
| 65 | 46 | 70 | 453 | 125 | 125 | 130 | 4-14 | 145 | 4-18 | 145 | 4-18 |
| 80 | 46 | 83 | 478 | 125 | 125 | 150 | 4-18 | 160 | 8-18 | 160 | 8-18 |
| 100 | 52 | 105 | 519 | 125 | 125 | 170 | 4-18 | 180 | 8-18 | 180 | 8-18 |
| 125 | 56 | 115 | 713 | 325 | 245 | 200 | 8-18 | 210 | 8-18 | 210 | 8-18 |
| 150 | 56 | 137 | 749 | 325 | 245 | 225 | 8-18 | 240 | 8-22 | 240 | 8-22 |
| 200 | 60 | 164 | 843 | 325 | 245 | 280 | 8-18 | 295 | 8-22 | 295 | 8-22 |
| 250 | 68 | 206 | 947 | 363 | 313 | 335 | 12-18 | 350 | 12-22 | 355 | 12-26 |
| 300 | 78 | 230 | 1013 | 363 | 313 | 395 | 12-22 | 400 | 12-22 | 410 | 12-26 |
| 350 | 78 | 248 | 1046 | 363 | 313 | 445 | 12-22 | 460 | 16-22 | 470 | 16-26 |
| 400 | 102 | 289 | 1135 | 363 | 313 | 495 | 16-22 | 515 | 16-26 | 525 | 16-30 |
| 450 | 114 | 320 | 1328 | 465 | 439 | 550 | 16-22 | 565 | 20-26 | 585 | 20-30 |
| 500 | 127 | 343 | 1226 | 546 | 481 | 600 | 20-22 | 620 | 20-26 | 650 | 20-33 |
| 600 | 154 | 413 | 1394 | 546 | 556 | 705 | 20-26 | 725 | 20-30 | 770 | 20-36 |
| 700 | 165 | 478 | 1534 | 546 | 556 | 810 | 24-26 | 840 | 24-30 | 840 | 24-36 |
| 800 | 190 | 525 | 1159 | 546 | 556 | 920 | 24-30 | 950 | 24-33 | 950 | 24-39 |
| 900 | 203 | 585 | 1748 | 617 | 706 | 1020 | 24-30 | 1050 | 28-33 | 1050 | 38-39 |
| 1000 | 216 | 640 | 1805 | 632 | 706 | 1120 | 28-30 | 1160 | 28-36 | 1170 | 28-42 |
Face-to-face: API 609 Table 1/ISO 5752 Series 20/BS 5155
Flange accommodation: ANSI B16.1 Class125/150
EN1092-2 PN6/10/16/25
Top Flange:ISO5211
Tightness Inspection: API 598/ISO 5208,/EN12226-2
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valve@mldvalves.com
