The R&D concept behind the VAG piston valve is designed to meet specific requirements that differ from traditional pipeline cut-off valves and gate valves. Unlike gate valves, which rely on a flat disk to block flow, the piston valve uses a cylindrical element that moves axially within the valve body to regulate flow. This design enables precise control and ensures optimal performance under various conditions.
Key Design Features:
- Adaptable to different fluid conditioning needs in industrial settings
- Excellent anti-cavitation performance
- High flow capacity for efficient operation
- Long-lasting sealing system with dual metal and elastic sealing
- Tight shutoff capability
- Pressure-balanced actuation mechanism
- Low operating force required
The stainless steel piston is precisely guided, ensuring smooth and stable movement without tilting or sticking. It can be installed in any orientation, making it highly versatile.
How It Works:
Fluid enters the valve through an axial slot, creating a ring-shaped flow cross-section regardless of the piston position. At the outlet, the flow contracts along the axis, preventing cavitation and protecting both the valve and the pipeline. The valve offers linear regulation with standard sizes ranging from DN150 to DN1200.
Features:
- Control valve for fluid flow
- Annular flow cross-section when open
- Linear adjustment for accurate control
- Integrated valve body for durability
- Customizable control components based on working conditions
- Outlet controlled via a crank drive mechanism
- Standard gearbox with position indicator
- Flange standards according to EN1092, PN10/16
- Body length compliant with EN558-1, basic sequence 15 (DIN3202, F4)
Applications:
1. Water diversion: VAG piston valves can function as relief valves or explosion-proof pipe valves with an annular venting device.
2. Storage: VAGLH or E-type models are ideal for liquid level or pressure control.
3. Water systems: VAGLH or S-type valves serve as flow control valves, while E or LH types can act as net or filling valves.
4. Water and wastewater treatment: VAG E-type valves can protect pumps during startup or be used in flow control systems. They are also suitable for gas control in sewage treatment plants.
5. Water supply: Depending on the application, VAG valves can manage pressure or flow control, such as balancing network pressure.
Ideal for applications where precise control of flow or pressure is essential, this valve is suitable for all types of fluids. Its robust design and flexible configuration make it a reliable choice across multiple industries.
RBA Indexable Roughing Boring Head
RBA Indexable Roughing Boring Head
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