Что такое двухстворчатый клапан с двойным смещением?
Дроссельные затворы с двойным эксцентриситетом are critical components in various industrial applications. They effectively control fluid flow with minimal pressure drop. This article explores their design, функциональность, преимущества, and common applications. Take an insight into TWT, a leading manufacturer in the valve industry.
Understanding the Double Offset Butterfly Valve Design
Design Features
Дроссельные затворы с двойным эксцентриситетом, also known as high-performance butterfly valves, have two offsets from the valve body’s center:
- The shaft axis is offset from the disc’s seat and body seal’s centerline, и
- The shaft axis is eccentric to the pipeline’s/valve’s center line.
This unique design helps minimize turbulence and ensures a tight seal, making these valves ideal for a variety of applications.
How They Work
A butterfly valve has flanges on both the inlet and outlet faces, что делает соединение между клапаном и трубой очень простым и не протекает. Кроме того, конец трубы, соединенный с клапаном, также имеет такой же размер, как фланец и отверстие на фланцевом клапане.. В общем, these valves offer defect-free and worry-free performance.
Key Components
- Тело: Typically made from durable materials like ductile (АСТМ А536/ГГГ40).
- Диск: All made in ASTM A536/ GGG40
- Корень: Нержавеющая сталь: АСТМ А182 304/316/431/ Дуплекс из нержавеющей стали
Applications of Double Offset Butterfly Valves
These valves are widely used in various industries due to their robustness and efficiency:
| Application Field | Specific Applications | Key Advantages | Industries |
|---|---|---|---|
| Fluid Types | Corrosive gases, chlorine, oxygen, морская вода, acidic gases, пар, toxic substances, ultrapure water, vacuum, wastewater | Lightweight, cost-effective, capable of handling extreme pressures and temperatures | Химическая, Food and Beverage, ОВК, Mining |
| High corrosion resistance | Нефти и газа, нефтехимическая, Pharmaceutical | ||
| High design strength | Выработка энергии, Pulp and Paper, Refining | ||
| Versatile in various applications | Sugar Processing, Water Filtration |
Преимущества DN1400 Flange Dimensions Поворотные затворы с двойным смещением
- Reduced Friction: The offset design minimizes contact between the disc and the seat, снижение трения и износа.
- Cleanability: Due to the self cleaning(никакие остатки не будут захвачены) function, it’s also easy to clean and disinfect for potable water systems, и т. д..
- Lightweight and Compact: Compared to other valve types, double offset butterfly valves reduced weight and overall dimensions, making them easier to install and maintain.
- Универсальность: Installation without restriction in the direction of flow (polished disc rim to avoid damage to the valve seat. Для установки не требуется прокладка).
- Экономически эффективным: Low-pressure loss and reduced energy costs. Good corrosion resistance.
- Multiple Option
- Руководство, электрический привод, пневматический привод, гидравлический привод, and bare shaft are optional
- Вода, питьевая вода, переносная вода, Масло, морская вода, and gas are all available working services.
- Размер от DN150-DN3600.
Заключение
Double offset butterfly valves play a vital role in fluid control across many industries. Their unique design offers significant advantages, including improved sealing, уменьшенный износ, and versatility in application. Companies like TWT lead the way in providing high-quality valves that enhance efficiency and reduce costs.
For more information on double offset butterfly valves and TWT’s offerings, contact us by phone at +86 18722007022 or email us at [email protected]