Electrically Operated Large Butterfly Valves For Flow Control 2" ~ 120"
Large Butterfly Valves Introduction
face to face length: 10 inch valve length be 8inch(203mm).
Body Ductile Iron w/Fusion Bonded Epoxy ASTM A536 65-45-12
Disc Ductile Iron w/316SS Edge w/Fusion Bonded Epoxy ASTM A536 65-45-12
Seat NBR Vulcanized on Body (Buna-N)
Shaft Type 316 Stn. Stl ASTM A276 Ty316
Packing V-Ring NBR (Buna-N)
Flanges ANSI B 16.1 Class 125
Large Butterfly Valves Specifications:
Size: DN50 - 3000
Temperature: -15℃ - 150℃
Pressure: 1.0MPa/1.6MPa
Materials
Materials of Body : Ductile Iron (GGG40, GGG50). Cast Iron (GG25), Stainless Steel
Materials of Disc : Stainless Steel. Nickel Plated, Ductile Iron, Ductile Iron Coated Plastic,
Titanium Steel, Copper Alloy etc
Materials of Seat : Ethylene-Propylene-Diene Monomer (EPDM), Polytetrafluoroethylene (PTFE),
Nitrile Rubber (NBR), Chloroprene, Chlorosulfonated Polyethylene (Hypalon),
Silicon, Fluoroelastomer (VITON) , Caoutchouc etc.
Materials of Stem : Stainless Steel. Carbon Steel ,2Cr13
Large Butterfly Valves Features:
⊙ Sealing reliable
Body and disc made of ductile iron which promote the impact resistance and pressure-bearing
capacity, sealing ring made of rubber and valve seat’s sealing surface is conical shaped, make the
sealing capacity more reliable.
⊙ Excellent corrosion protection
Inside electrostatic epoxy resin power coating or vitreous enamel(upon request), outside electrostatic
epoxy resin power coating.
⊙ Reliable health nature
Epoxy resin power is up to the health standard.
Mail part & material
Body, Disc: GGG50 with internal and external epoxy resin coating
Stems: 1Cr17Ni12Mo2Ti, Stainless steel min.13%Cr
Bushing :Bronze CuAI10Fe3
Seal ring, O-ring: NBR, EPDM or FPM
Technical Specification
- Nominal diameter:150～2600mm
- Nominal pressure:1.0/1.6/2.5Mpa
- Strength testing pressure:1.5/2.4/3.75Mpa
- Sealing testing pressure:1.1/1.76/2.75Mpa
Executive standard
| Design standard | DIN3354 |
| Face to face | DIN3202 or BS 5155 |
| Flange end | DIN 2501 |
| Test & inspection | DIN 3230 or GB/T 13927 |
| Working temperature | NBR<80℃; EPDM<120℃; FPM<160℃ |
Main external and connection dimension
1.0MPa mm
| DN | L | H1 | H2 | H3 | Flange dimensions comply with DIN 2501 |
| long type | short type | O | C | g | f | b | n-d |
| 150 | 210 | 140 | 226 | 165 | | 285 | 240 | 212 | 3 | 19 | 8-23 |
| 200 | 230 | 152 | 255 | 192 | | 340 | 295 | 268 | 3 | 20 | 8-23 |
| 250 | 250 | 165 | 293 | 227 | | 395 | 350 | 320 | 3 | 22 | 12-23 |
| 300 | 270 | 178 | 326 | 260 | | 445 | 400 | 370 | 4 | 24.5 | 12-23 |
| 350 | 290 | 190 | 368 | 314 | | 505 | 460 | 430 | 4 | 24.5 | 16-23 |
| 400 | 310 | 216 | 423 | 346 | 634 | 565 | 515 | 482 | 4 | 24.5 | 16-28 |
| 450 | 330 | 222 | 455 | 385 | 666 | 615 | 565 | 532 | 4 | 25.5 | 20-28 |
| 500 | 350 | 229 | 506 | 422 | 728 | 670 | 620 | 585 | 4 | 26.5 | 20-28 |
| 600 | 390 | 267 | 568 | 490 | 790 | 780 | 725 | 685 | 5 | 30 | 20-31 |
| 700 | 430 | 292 | 632 | 550 | 854 | 895 | 840 | 800 | 5 | 32.5 | 24-31 |
| 800 | 470 | 318 | 692 | 615 | 924 | 1015 | 950 | 905 | 5 | 35 | 24-34 |
| 900 | 510 | 330 | 815 | 678 | 1098 | 1115 | 1050 | 1005 | 5 | 37.5 | 28-34 |
| 1000 | 550 | 410 | 880 | 743 | 1163 | 1230 | 1160 | 1110 | 5 | 40 | 28-37 |
| 1200 | 630 | 470 | 1024 | 860 | 1307 | 1455 | 1380 | 1330 | 5 | 45 | 32-40 |
| 1400 | 710 | 530 | 1210 | 1010 | 1350 | 1675 | 1590 | 1535 | 5 | 46 | 36-43 |
| 1600 | 790 | 600 | 1340 | 1140 | 1480 | 1915 | 1820 | 1760 | 5 | 49 | 40-49 |
| 1800 | 870 | 670 | 1460 | 1360 | 1640 | 2115 | 2020 | 1960 | 5 | 52 | 44-49 |
| 2000 | 950 | 760 | 1660 | 1485 | 1800 | 2325 | 2230 | 2170 | 5 | 55 | 48-49 |
1.6MPa mm
| DN | L | H1 | H2 | H3 | Flange dimensions comply with DIN 2501 |
| long type | short type | O | C | g | f | b | n-d |
| 150 | 210 | 140 | 226 | 165 | | 285 | 240 | 212 | 3 | 19 | 8-23 |
| 200 | 230 | 152 | 255 | 192 | | 340 | 295 | 268 | 3 | 20 | 12-23 |
| 250 | 250 | 165 | 293 | 227 | | 405 | 355 | 320 | 3 | 22 | 12-28 |
| 300 | 270 | 178 | 326 | 260 | | 460 | 410 | 378 | 4 | 24.5 | 12-28 |
| 350 | 290 | 190 | 368 | 314 | | 520 | 470 | 438 | 4 | 26.5 | 16-28 |
| 400 | 310 | 216 | 423 | 346 | 634 | 580 | 525 | 490 | 4 | 28 | 16-31 |
| 450 | 330 | 222 | 455 | 385 | 666 | 640 | 585 | 550 | 4 | 30 | 20-31 |
| 500 | 350 | 229 | 506 | 422 | 728 | 715 | 650 | 610 | 4 | 31.5 | 20-34 |
| 600 | 390 | 267 | 568 | 490 | 790 | 840 | 770 | 725 | 5 | 36 | 20-37 |
| 700 | 430 | 292 | 632 | 550 | 854 | 910 | 840 | 795 | 5 | 39.5 | 24-37 |
| 800 | 470 | 318 | 692 | 615 | 924 |
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Electrically Operated Large Butterfly Valves For Flow Control 2" ~ 120" Images
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