| Valve Type: | Wafer butterfly valve | Structure: | Eccentric |
| Standard: | API/EN/JIS | Workmanship: | Investment casting |
| Sealing direction: | Bidirectional | Sealing grade: | Zero leakage |
| Temperature: | -190°C < T < 700°C | Operation: | Pneumatic |
This pneumatic high-performance butterfly valve has fast response and automatic control capability. Its triple eccentric metal seal achieves friction-free operation and zero leakage. It resists heat, pressure, abrasion and corrosion effectively. Safe for combustible media, the compact design ensures easy installation and low maintenance.
This metal to metal butterfly valve equipped with pneumatic actuator, the valve opens and closes quickly. This pneumatic butterfly valve supports remote control and frequent operation, perfectly matching automatic pipeline systems.
The triple-offset structure eliminates seal friction. Metal hard seal ensures zero leakage. It stands up to high temperature, high pressure, abrasion and corrosive media.
Pneumatic drive guarantees safe operation even for flammable and explosive fluids. The robust structure reduces failure rate and cuts long-term maintenance costs.
| Part name | Material |
|---|---|
| Valve body | WCB, QT450-10, Q235, Alloy steel, stainless steel, etc. |
| Valve stem | Alloy steel, stainless steel |
| Seal ring | Stainless steel composite multi-level |
| Packing | Flexible graphite or stuffing |
| Valve seat | Stainless steel, cobalt based hard alloy |
| Valve stem | Stainless steel |
| PN (MPa) | DN (mm) | L | D | D1 | Z- φ d | H | H0 | A | B |
|---|---|---|---|---|---|---|---|---|---|
| 1.6 | 150 | 70 | 211 | 240 | 8- φ22 | 385 | 230 | 66 | 150 |
| 200 | 71 | 266 | 295 | 12- φ22 | 471 | 297 | 85 | 170 | |
| 250 | 76 | 319 | 355 | 12- φ26 | 533 | 327 | 85 | 170 | |
| 300 | 83 | 370 | 410 | 12- φ26 | 606 | 364 | 106 | 205 | |
| 350 | 92 | 429 | 470 | 16- φ26 | 694 | 404 | 106 | 205 | |
| 400 | 102 | 480 | 525 | 16- φ30 | 757 | 444 | 130 | 240 | |
| 450 | 114 | 548 | 585 | 20- φ30 | 814 | 472 | 155 | 240 | |
| 500 | 127 | 609 | 650 | 20- φ33 | 902 | 522 | 169 | 306 | |
| 600 | 154 | 720 | 770 | 20- φ36 | 1048 | 590 | 198 | 324 | |
| 700 | 165 | 794 | 840 | 24- φ30 | 1277 | 810 | 220 | 335 | |
| 800 | 190 | 901 | 950 | 24- φ39 | 1385 | 844 | 241 | 356 | |
| 900 | 203 | 1001 | 1050 | 28- φ39 | 1490 | 890 | 241 | 356 | |
| 1000 | 216 | 1112 | 1170 | 28- φ42 | 1620 | 950 | 241 | 356 | |
| 1200 | 254 | 1328 | 1390 | 32- φ48 | 2191 | 1340 | 35 | 785 | |
| 1400 | 390 | 1530 | 1590 | 36- φ48 | 2326 | 1450 | 35 | 785 | |
| 1600 | 440 | 1750 | 1820 | 40- φ55 | 2685 | 1590 | 35 | 785 | |
| 1800 | 490 | 1950 | 2020 | 44- φ55 | 2924 | 1710 | 60 | 865 | |
| 2000 | 540 | 2150 | 2230 | 48- φ60 | 3186 | 1854 | 60 | 865 |
The high performance wafer butterfly valve is extensively applied in power, petrochemical, metallurgy, heating and environmental protection industries. Suitable for automatic pipelines conveying steam, flue gas, thermal oil, corrosive media and combustible gas under high temperature and high pressure conditions.
Standard export wooden case packaging
The valve complies with international standards including API, EN, and JIS. It features an eccentric design with triple eccentric metal hard sealing for friction-free operation.
This high-performance valve is built to handle extreme working conditions, with a temperature tolerance ranging from -190°C to 700°C.
Yes, its metal-to-metal triple-offset sealing structure achieves bidirectional sealing grade with zero leakage performance.
It is widely used in power, petrochemical, metallurgy, heating, and environmental protection industries for conveying steam, flue gas, thermal oil, corrosive media, and combustible gas.
The valve body options include WCB, QT450-10, Q235, Alloy steel, and stainless steel. The seal ring uses stainless steel composite multi-level structures with optional cobalt-based hard alloy seats.
Products are packed in standard export wooden cases to ensure safe protection against impact during long-distance shipping.