AVK Launches PN25 Needle Valve for Water Management Systems

Water resource management faces increasingly complex challenges, particularly in high-pressure differential and high-flow scenarios where precise control and long-term reliability are critical. The newly launched AVK 872 Series PN25 Needle Valve emerges as a robust solution designed to address these demanding requirements.

Engineered for Reliability and Performance

The AVK 872 Series PN25 Needle Valve, suitable for water and neutral liquid media at temperatures up to 70°C, combines durable construction with precision engineering. Its design features make it particularly effective for high-flow and high-pressure differential applications in water treatment and industrial control systems.

Key design advantages include:

• Monobloc valve body: Eliminates potential leakage points while enhancing structural integrity
• Symmetrical flow path: Ensures even fluid distribution around the valve seat, minimizing localized wear
• Pressure-balanced chamber: Reduces operating torque for easier adjustment
• 4-6 guide rails: Minimizes vibration during operation for improved control stability
• Optimized sealing configuration: Places the main seal on the piston rather than the seat to prevent wear
• Polyurethane seals: Provide exceptional wear resistance for long-term sealing performance
• Fusion-bonded epoxy coating: Offers corrosion protection with a minimum 250μm coating on all ferrous components

Precision Control Capabilities

The valve's gearbox with bronze worm gear enables continuous adjustment with over 1.2 million operational cycles, maintaining precise control throughout its service life. The 872 Series supports multiple critical functions:

• Accurate flow regulation
• Stable pressure control
• Pump start/stop management
• Reservoir inlet control
• System discharge operations
• Turbine bypass functionality
• Air flow regulation to prevent cavitation and water hammer

Technical Specifications

The comprehensive size range and robust construction make the AVK 872 Series suitable for diverse applications requiring precise flow and pressure management in water distribution and industrial systems.