Custom Triple Offset Wafer High Performance Butterfly Valve Suppliers, Manufacturer
Product Description
Product Specifications
| 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: | Handle |
Characteristics
The triple eccentric butterfly valve adopts a three-offset structure, which eliminates friction between sealing surfaces during opening and closing. Equipped with metal hard seal, it features excellent high temperature resistance, pressure resistance and abrasion resistance. It provides reliable bi-directional tight shutoff with low operating torque. Compact in structure, it can be fitted with various actuators and works stably under harsh working conditions.
Key Advantages
The triple eccentric butterfly valve adopts a triple eccentric frictionless structure, ensuring no abrasion of the sealing surface throughout the entire opening and closing process, thereby completely solving the problem of wear and leakage in ordinary butterfly valves. The metal hard seal achieves bidirectional zero leakage, providing stable sealing that is unaffected by high temperatures, high pressures, and pressure differential changes.
The high performance butterfly valve resistant to high temperatures, high pressures, erosion, and particulate impurities. Capable of withstanding harsh working conditions such as steam, high-temperature flue gas, heat transfer oil, dust, and particulate-containing sewage, it far exceeds the application range of ordinary soft-seal butterfly valves and exhibits extremely strong industrial heavy-duty performance.
The frictionless design significantly extends the valve's lifespan, making it suitable for high-frequency opening and closing, as well as long-term continuous operation. It features a small operating torque, easy to switch, low failure rate, stable structure, shock resistance, and durability. The maintenance workload is minimal, resulting in a lower overall cost of use.
Packing
Standard export wooden case packaging
Application Scenarios
The triple offset valve butterfly is widely applied in power, metallurgy, petrochemical and heat supply industries. Suitable for pipelines carrying high-temperature steam, flue gas, thermal oil, dusty fluid and particle-containing wastewater. It is also a reliable option for gas delivery and other heavy-duty industrial piping systems.
Material Specifications
| 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 |
Dimension
| 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 |
Frequently Asked Questions (FAQ)
The valve is designed to perform reliably across an extreme temperature range of -190°C to 700°C (-190°C < T < 700°C), making it suitable for both cryogenic processes and high-temperature industrial pipelines.
The triple eccentric (three-offset) frictionless structure eliminates contact and friction between the sealing surfaces throughout the opening and closing stroke. This prevents seal wear, lowers operating torque, and guarantees long-term bidirectional zero leakage.
It is highly resistant to severe erosion, particulate impurities, high pressure, and extreme heat. It works efficiently with steam, high-temperature flue gas, heat transfer oil, dusty gases, and particle-containing wastewater.
The body is available in WCB, QT450-10, Q235, Alloy steel, and Stainless steel. Stems are constructed from Alloy steel or Stainless steel, and the valve seat utilizes Stainless steel combined with cobalt-based hard alloy overlay.
It is widely deployed in heavy-duty industrial systems across power generation, metallurgy, petrochemical plants, district heating, and gas transmission networks.
All orders are packed securely using standard export wooden cases to protect the valve body, sealing surfaces, and components during sea or air transit.
