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Hunter HDL Dripline — HDL-04-18-250-CV, 0.4 GPH (18" spacing, 250 ft)

Hunter HDL Dripline — HDL-04-18-250-CV, 0.4 GPH (18" spacing, 250 ft)

Brand: Hunter
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$120.69
$120.52
SKU HDL0418250CV

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Hunter HDL Dripline HDL-04-18-250-CV is a pressure‑compensating drip tubing with an integrated check valve (CV), engineered to deliver uniform low‑volume irrigation for slopes, planting beds, and subsurface installations. Each emitter provides a steady 0.4 GPH (approximately 1.5 L/hr) output to maintain even soil moisture and reduce runoff.

  • Flow & spacing: 0.4 GPH (1.5 L/hr) emitters at 18" (45 cm) spacing for consistent, low‑volume watering.
  • Check valve: Built‑in check valve prevents line drainage — ideal for sloped or below‑grade installations.
  • Coil length: 250 ft (≈75 m) coil length suited for medium‑length runs and planted bed layouts.
  • Tubing specs: 16.76 mm OD × 14.22 mm ID durable tubing designed for long service life and resistance to wear.
  • Operating requirements: Recommended operating range 1–4.2 bar (100–420 kPa); minimum filtration 120 mesh (125 μm).
  • Warranty & docs: Manufacturer warranty typically 5 years with additional coverage for environmental stress cracking; detailed submittal and product overview sheets available.

Designed as a high‑efficiency upgrade to conventional PLD dripline, Hunter HDL combines pressure compensation with reliable anti‑drain protection for professional irrigation projects. Use standard HDL fittings and refer to the HDL product submittal and micro irrigation overview for installation diagrams, CAD files, and performance charts.

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Frequently Asked Questions

What is the emitter flow rate and spacing?
This model delivers 0.4 GPH (≈1.5 L/hr) per emitter with 18" (45 cm) spacing for uniform low-volume irrigation.
Is the check valve suitable for sloped installations?
Yes. The built-in check valve (CV) prevents line drainage, maintaining prime on slopes and for subsurface runs.
What filtration and pressure are required for HDL dripline?
Minimum filtration of 120 mesh (125 μm) is recommended. Operating range is approximately 1–4.2 bar (100–420 kPa).
How long is the coil and what are typical uses?
The coil is 250 ft (≈75 m). It’s suited for planting beds, hedgerows, and medium-length landscape runs where uniform watering is needed.