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NDJ 20mm Automatic Lateral Flush Valve (NaanDanJain)
Prevent sediment build-up and maintain optimal water flow across larger zones with the genuine NDJ 20mm Automatic Lateral Flush Valve. Engineered specifically for high-capacity drip setups, this self-cleaning component automatically purges your lines at the beginning of every irrigation cycle.
Larger 20mm irrigation mainlines and thicker drip pipes transport more water, which frequently means dealing with a higher volume of suspended silt, grit, and mineral deposits. The **NDJ 20mm Lateral Flush Valve** acts as an automated defense mechanism for your pipework. When the zone valve fires up, this component drops wide open, letting a sudden rush of water sweep away any settled debris before the pressure forces the internal diaphragm to seal tight. It effectively shields your systems from localized clogging without requiring manual intervention.
Key Performance Attributes & Design Benefits:
- Completely Automated Maintenance: Eliminates the traditional chore of manually opening pipe end caps to bleed the system, saving hours of maintenance labour.
- Velocity-Responsive Mechanism: Utilises a smart internal floating piston that reacts directly to initial water speed rather than immediate static pressure, ensuring a thorough line wash.
- All-Plastic Engineering: Manufactured with zero metallic parts to offer absolute immunity against corrosion from liquid fertilisers, hard water deposits, and acidic soil conditions.
- Rapid On-Site Servicing: The heavy-duty outer casing unscrews smoothly by hand, allowing fast inspection, cleaning, or seasonal winterisation without using any tools.
- Heavy-Duty 20mm Barb: Features deep, aggressive barbs designed to grip standard 20mm LDPE supply pipes and professional distribution hoses tightly.
Recommended Applications:
The **NDJ 20mm Automatic Flush Valve** is best suited for installation at the absolute furthest point or lowest elevation of a 20mm zone loop. It is an ideal addition for commercial market gardens, vineyard drip lines, extensive agricultural rows, and larger domestic landscaping projects where maintaining consistent watering pressure across long pipe runs is vital.
Technical Specifications:
- Manufacturer: NaanDanJain (NDJ)
- Connection Size: 20mm Hose Barb (Push-Fit)
- Operational Threshold: 0.5 to 3.5 bar
- Flush Phase Duration: Roughly 15 – 30 seconds upon startup
- Body Composition: High-impact, UV-stabilised industrial polymer
Professional Installer Tip: Because 20mm lines carry higher volumes and experience greater water hammer pressure, we highly recommend locking the pipe onto the barb using a 20mm heavy-duty ratchet clamp or stainless steel clip to ensure a permanent, leak-free connection.
