OEM Triple Eccentric Wafer Style Butterfly Valve WCB Material 150LB Manufacturer, Factories
Product Description
Technical 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
This three eccentric butterfly valve is engineered with a three-eccentric design, so no friction occurs between sealing faces during operation. Its metal hard seal delivers outstanding performance against high temperature, high pressure and wear. It achieves dependable bidirectional bubble-tight sealing with low actuation torque. Featuring a compact build, it supports a full range of actuators and runs reliably in demanding industrial environments.
Advantages
1. Excellent Sealing Performance
Designed with a triple eccentric structure, the valve completely avoids friction between sealing surfaces during opening and closing. The precision metal hard seal pair achieves bidirectional zero leakage. Its sealing stability is not affected by high temperature, high pressure and fluctuating pressure difference, ensuring long-term reliable tight shutoff under harsh industrial conditions.
2. Superior Working Condition Adaptability
Adopting high-strength metal hard seal configuration, this valve features outstanding resistance to high temperature, high pressure, erosion and abrasion. It can stably handle complex media such as high-temperature steam, flue gas, heat conduction oil and particle-containing fluid. It is far more adaptable to severe working conditions than ordinary soft-seal butterfly valves and meets heavy-duty industrial operation requirements.
3. Long Service Life and Low Maintenance Cost
The friction-free opening and closing design effectively reduces wear on core components and greatly extends the valve’s service life. It requires low operating torque, supports frequent switching and continuous long-term operation. With stable overall structure and low failure rate, it minimizes daily maintenance work and reduces the comprehensive operating cost of the pipeline system.
Material
| Part name | Meterial |
| 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 |
Application Scenarios
This triple eccentric butterfly valve is widely used for pipelines conveying high-temperature steam, flue gas, thermal oil and particle-containing media. It is a preferred choice for power plants, metallurgy, petrochemical industry, heat supply networks and industrial waste water systems, suitable for high pressure and severe service conditions.
Packing
Standard export wooden case packaging
Frequently Asked Questions (FAQ)
What makes a triple eccentric butterfly valve different from a standard design?
The triple eccentric (three-eccentric) design features three distinct offsets that eliminate friction between the sealing surfaces during operation. This prevents seat wear, drastically lowers operating torque, and guarantees bidirectional zero-leakage shutoff.
What operating temperature range can this valve handle?
This valve is engineered for extreme working environments and operates reliably within a wide temperature range of -190°C up to 700°C (-190°C < T < 700°C), making it suitable for cryogenic or high-heat applications.
What body and stem material options are available?
Valve body options include WCB, QT450-10, Q235, alloy steel, and stainless steel. Valve stems are constructed from premium alloy steel or high-grade stainless steel to resist corrosion and structural stress.
Is this valve capable of handling fluids with solid particles?
Yes. Due to its metal hard seal construction and high erosion resistance, it can reliably process complex media including high-temperature steam, flue gas, thermal oil, and particle-containing fluids.
What standards do these valves conform to?
Our wafer butterfly valves are manufactured in strict compliance with major international standards including API, EN, and JIS, ensuring full compatibility with global pipeline installations.
How are the valves protected during export transport?
All units are packed using standard export wooden cases designed to prevent structural damage, surface oxidation, and moisture exposure during international sea or air transport.
