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Close-up of Hunter PLD-AVR 1/2-inch air/vacuum relief valve showing 1/2" male threaded connection and corrosion-resistant UV-protected body.

Hunter PLD-AVR 1/2" Air/Vacuum Relief Valve (Boxed)

Brand: Hunter
Save 44%
$19.53
$10.98
SKU PLD-AVR
In Stock (19)

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The Hunter PLD-AVR 1/2" Air/Vacuum Relief Valve delivers reliable air release and vacuum protection for micro‑irrigation systems. Designed for installation at high points or line ends, the AVR discharges trapped air during start‑up and admits air during shut‑down to prevent water hammer, pipe collapse, and related system damage. UV‑protected, corrosion‑resistant materials provide long outdoor service life for exposed installations.

  • 1/2" male thread fits standard PLD and micro‑irrigation fittings.
  • Releases air pockets without premature closure and ensures leak‑free closure after release.
  • Operating pressure up to 80 PSI (5.5 bar / 550 kPa) for typical micro‑irrigation systems.
  • Compact, low‑profile design (approx. 1 in. height) for easy placement at system high points.
  • UV‑protected, corrosion‑resistant construction for durability in outdoor environments.
  • Manufacturer two‑year limited warranty; contact distributor for availability and ordering.

Ideal for both commercial and residential drip or micro‑irrigation lines, the PLD‑AVR helps maintain system performance and reduces maintenance by preventing vacuum collapse and water hammer. Refer to the product spec sheet for full dimensions, UPC, and installation notes.

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Frequently Asked Questions

What size thread does the PLD-AVR use?
The PLD-AVR uses a 1/2" male threaded connection compatible with standard PLD and micro-irrigation fittings.
How much pressure can this valve handle?
Rated to operate up to 80 PSI (5.5 bar / 550 kPa); verify with your system requirements.
Where should I install the air/vacuum relief valve?
Install at system high points or line ends where air pockets collect to prevent water hammer and vacuum collapse.
Does the PLD-AVR include a warranty?
Yes. The manufacturer provides a two-year limited warranty; contact your distributor for full warranty terms.