The R&D principles and introduction of the VAG piston valve highlight its unique design and versatility compared to traditional valves like butterfly or gate valves, which are primarily used for on/off control. The VAG piston valve, however, is engineered to meet a wide range of precise flow regulation needs. This is achieved through the axial movement of a piston-like cylinder within the valve chamber, allowing for accurate and consistent flow control.
Key Design Features:
- Adaptable to various fluid conditioning requirements in different industrial settings
- Excellent anti-cavitation performance
- High flow capacity
- Long-lasting sealing system with dual metal and elastic material sealing
- Tight shut-off capability
- Pressure-balanced actuation mechanism
- Low operating force required
- Stainless steel piston options ensure reliable sliding without tilting or sticking, making it suitable for installation in any orientation
How It Works:
As fluid enters the valve through an axial arc, the flow cross-section within the valve cavity remains ring-shaped regardless of the piston's position. At the outlet, the flow contracts along the axis to prevent cavitation and minimize damage to the body and pipeline. This design ensures smooth and linear flow regulation.
Standard Sizes: DN150 to DN1200
Features:
- A control valve designed for fluid systems
- Circular flow passage when open
- Linear adjustment capability
- Integrated valve body construction
- Customizable control components based on application conditions
- Outlet controlled by a crank drive mechanism
- Standard gearbox with position indicator
- Flanges conform to EN1092 standards (PN10/16)
- Body length follows EN558-1, basic sequence 15 (DIN3202, F4)
Applications:
- **Diversion**: Can function as a relief valve, requiring an annular venting device, or as an explosion-proof pipe valve
- **Storage**: VAGLH or E-type models can serve as liquid level or pressure regulator valves
- **Water Systems**: VAGLH or S-type valves are ideal for flow control, while E or LH types can be used as drain or irrigation valves
- **Water Treatment / Sewage Treatment**: The E-type model can act as a pump start-up protection valve or a flow control valve in water treatment plants, and also as a gas control valve in sewage treatment facilities
- **Water Supply**: Depending on the operating conditions, different outlet components can be used as pressure or flow control valves, such as for balancing pipeline pressure
This advanced valve design offers superior performance, reliability, and flexibility, making it a preferred choice for complex flow control applications across multiple industries.
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Zhejiang Jinhai Plastic Machinery Co., Ltd. , https://www.jinhaiextruder.com