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Double Eccentric Metal Seal Flange Butterfly Valve

Size range:DN100-4000
Pressure:PN2.5~40
Body material:cast iron, ductile iron, WCB, LCB, CF8, CF8M, CF3, CF3M, A890 4A, etc.
Operation:lever, handwheel, worm gear, electric, pneumatic, hydraulic, etc.
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Overview

Double eccentric metal seal flange butterfly valve are industrial valves, which are designed to fully open or close a passage of the working medium flowing through a pipeline. It can be applied in non-corrosive gases and liquids can be used in petroleum and petrochemical, metallurgy, chemical industry, electric power, gas, water conservancy, municipal administration, and construction industries.

Features

  1. 1.Di-direction sealing .The installation is not limited by the flow direction of the medium.
  2. 2.Double Eccentric / Double Offset Disc Design.
  3. 3.Long service life, the sealing surface is made of 1Cr18Ni9Ti stainless steel, which is rust-resistant.
  4. 4.With a double-eccentric structure, the sealing pair does not contact during the opening and closing of the valve, resulting in no wear.
  5. 5.Wide range of applications, can be used in a variety of working conditions and media.
  6. 6.Valve stem is half shaft structure and truss type, which have small flow resistance, small pressure loss.
  7. 7.Easy to install on the line, light weight and occupies less space.

Technical Specifications

1.6MPa
DN D1 D2 D3 L L2 b n-d H1 H2 H3 H4 H5 A1 A2 A3 A4 A5 Φ1 Φ2 Number of opening and closing cycles Weight(kg)
length expansion steel iron
100 220 180 156 127 190 ±15 22 19 8-Φ18 130 230 260 190 155 44 126 68 180 200 8 23
125 250 210 184 140 200 ±15 22 19 8-Φ18 145 250 280 190 155 44 126 68 180 200 28
150 285 240 211 140 210 ±15 24 19 8-Φ22 165 270 300 190 155 44 126 68 180 200 40
200 340 295 266 152 230 ±15 24 20 12-Φ22 200 325 365 200 195 64 209 110 240 400 10 55
250 405 355 319 165 250 士15 26 22 12-Φ26 230 385 220 415 200 235 94 145 250 110 320 400 12
(single stage)
15
(pipe network）		 80
300 460 410 370 178 270 ±15 28 25 12-Φ26 256 415 220 445 200 235 94 145 250 110 320 400 100
350 520 470 429 190 290 ±20 30 27 16-Φ26 292 495 240 540 210 275 132 196 250 140 400 500 14
(single stage)
21
(pipe network)		 165
400 580 525 480 216 310 士20 32 28 16-Φ30 322 525 240 575 210 275 132 196 250 140 400 500 195
450 640 585 548 222 330 ±20 34 30 20-Φ30 360 595 270 630 210 425 185 244 250 140 500 500 48 295
500 715 650 609 229 350 ±25 36 32 20-Φ33 420 635 270 652 210 425 185 244 250 140 500 500 360
600 840 770 720 267 390 ±30 38 36 20-Φ36 465 705 270 740 210 425 185 244 250 140 500 500 470
700 910 840 794 292 430 ±30 38 40 24-Φ36 510 785 324 350 514 233 293 555 625 600 305 48 660
800 1025 950 901 318 470 ±35 38 43 24-Φ39 580 851 324 350 514 233 293 555 625 600 305 845
900 1125 1050 1001 330 510 ±35 40 47 28-Φ39 632 975 360 375 590 296 350 650 305 57.6 1140
1000 1255 1170 1112 410 550 ±40 42 50 28-Φ42 735 1040 360 375 590 296 350 650 705 600 305 1455
1200 1485 1390 1328 470 630 ±40 48 57 32-Φ48 856 1261 450 405 752 410 460 765 935 720 305 90 2550
1400 1685 1590 1530 530 710 ±50 52 60 36-Φ48 995 1460 355 435 355 495 370 970 970 720 460 123 3895
1600 1930 1820 1750 600 790 ±50 58 65 40-Φ56 1170 1624 355 435 355 495 370 970 970 720 460 4950
1800 2130 2020 1950 670 62 70 44-Φ56 1320 1850 430 520 430 630 424 1250 1460 900 610 340 7500
2000 2345 2230 2150 760 66 75 48-Φ62 1460 1990 430 520 130 630 424 250 460 900 610 9500
2200 2555 2440 2360 800 75 90 52-Φ62 1520 1910 430 1200 690 730 1335 615 200 450 450
2400 2765 2650 2570 900 80 96 56-Φ62 655 2070 430 1200 690 730 1335 615 1200 450 450
2600 2965 2850 2770 1000 85 102 60-Φ62 1790 2220 580 1600 840 890 1550 1850 1200 600 1071

Note: Technical specifications may change without notice due to ongoing technological advancements.

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