Norma NDS® 1520 Series PVC Pressure Swing Check Valves

The Norma NDS® 1520 Series PVC Pressure Swing Check Valve is designed to prevent reverse flow in pressurised pipeline systems, protecting pumps, filters, and equipment from backflow damage. Featuring a swing-type internal flap, the valve opens automatically with forward flow and closes when flow stops, ensuring reliable one-way operation without manual control.

Constructed from high-strength PVC, the valve offers excellent corrosion resistance and long service life in water, irrigation, pool, and industrial fluid applications. The full-flow design minimises pressure loss, allowing efficient system performance while maintaining dependable backflow prevention.

Suitable for both horizontal and vertical installations, the 1520 Series valve provides quiet operation and low maintenance. Its robust body construction withstands typical mains pressure conditions, making it ideal for pump discharge lines, filtration systems, irrigation networks, and general water transfer applications.

FEATURES

• Swing check mechanism for automatic non-return operation
  
• Prevents reverse flow and protects system components
  
• Durable PVC construction for corrosion resistance
  
• Full flow design for minimal pressure loss
  
• Suitable for pressurised water systems
  
• Quiet operation with low maintenance requirements
  
• Compatible with horizontal or vertical installation
  
• Ideal for irrigation, pools, pumps, and filtration systems
  
• Reliable sealing performance under varying flow conditions
  
• Long service life in harsh environments