The R&D principles and introduction of the VAG piston valve highlight its unique design and versatile functionality compared to traditional valves such as butterfly and 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 an axial movement of a piston-like cylinder within the valve chamber, allowing for accurate and stable flow control.
**Product Features and Design Advantages:**
- **Adaptability:** It can be customized to suit different fluid conditioning requirements in various industrial settings.
- **Anti-Cavitation Performance:** Designed with optimal anti-cavitation characteristics to prevent damage caused by pressure fluctuations.
- **High Flow Capacity:** Ensures efficient fluid passage with minimal resistance.
- **Long-Lasting Sealing System:** Combines metal and elastic materials for double sealing, ensuring tight closure and extended service life.
- **Pressure Balance:** The drive mechanism maintains pressure equilibrium, reducing operational stress.
- **Low Operating Force:** Enables smooth and easy operation even under high-pressure conditions.
- **Flexible Installation:** The stainless steel piston is designed for reliable sliding without tilting or sticking, making it suitable for installation in any orientation.
**How It Works:**
The flow enters the valve through an axial arc, creating a ring-shaped cross-section in the valve cavity regardless of the piston position. At the outlet, the flow contracts along the axis, minimizing the risk of cavitation and protecting both the valve and the pipeline. This design ensures linear flow control and consistent performance across a wide range of applications.
**Standard Specifications:**
- **Nominal Diameter:** DN150 to DN1200
- **Control Valve Type:** Suitable for fluid control with a ring-shaped opening when fully open
- **Linear Adjustment:** Offers precise flow regulation
- **Integrated Valve Body:** Simplifies installation and maintenance
- **Customizable Control Parts:** Adaptable to different working conditions
- **Drive Mechanism:** Controlled by a crank mechanism that moves the outlet part longitudinally
- **Gearbox Standard:** Includes a position indicator for easy monitoring
- **Flange Standard:** Complies with EN1092, PN10/16
- **Body Length:** Follows EN558-1, basic sequence 15 (DIN3202, F4)
**Applications:**
- **Diversion:** The VAG piston valve can function as a relief valve, equipped with an annular venting device, or as an explosion-proof pipe valve.
- **Storage:** VAGLH or E-type models can act 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 serve as drain or irrigation valves.
- **Water Treatment & Sewage Treatment:** The E-type model can be used as a pump start-up protection valve or as a flow control valve in water treatment plants. It also functions as a gas control valve in sewage treatment facilities.
- **Water Supply:** Depending on the application, different outlet components can be used as pressure or flow control valves, helping to maintain balance in pipeline networks.
In summary, the VAG piston valve is a highly adaptable and reliable solution for complex flow control needs, combining advanced engineering with practical design to deliver long-term performance and efficiency.
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Zhejiang Jinhai Plastic Machinery Co., Ltd. , https://www.jinhaiextruder.com