Rain Bird 16A‑FDV Automatic Filtered Drain Valve – ½″ BSPM

The Rain Bird 16A‑FDV is a compact, thermoplastic automatic drain valve designed to protect irrigation systems from freeze damage by automatically draining water when system pressure falls below a specific threshold. Its filtered inlet prevents debris from entering the pipeline, eliminating the need for gravel drains. Ideal for residential and light commercial outdoor installations.

Key Features:

• Automatic draining when system pressure drops below approximately 0.2 bar (vertical installation)
• Closes when pressure rises back above approximately 0.4 bar
• Integrated filter prevents grit from entering the system
• Rated for pressures up to 8.5 bar (approx. 125 psi)
• ½″ BSP male threaded inlet compatible with standard pipe fittings
• Suitable for both vertical and horizontal mounting in low points

Specifications:

• Connection: ½″ BSP male thread
• Max operating pressure: 8.5 bar (125 psi)
• Opening pressure (vertical installation): ~0.2 bar
• Closing pressure (vertical): ~0.4 bar
• Maximum flow rate before sealing: ~0.23 m³/h
• Body material: Thermoplastic