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Air / Vacuum Relief Valve (APV)

Installing automatic air relief valves on the end of lateral lines and emitterline will prolong the efficiency of your system.


MPN: 559099 SKU 559099 Categories ,

Product Description

Air Release / Vacuum Relief Valves provide vital protection to pipeline systems. They allow air to escape during system startup by preventing air restrictions, water hammers caused by large air masses, inaccurate flow meter readings, and explosive conditions from air being compressed by water. 

They also allow air to enter the pipeline during valve closure or system shutdown. This minimizes the collapse of mainline and sub main pipes, back-siphonage of dirt into emitters, and water hammer caused by the sudden reversal of flows. 

Air Vaccum Relief Valves

  • Dual Acting Air Release/Vacuum Relief Valve
  • Innovative and slam resistant design allows only water to close valve
  • 150 psi working pressure
  • Inlet 1” and 1 1/4” npt or bsp
  • Seals at 1 psi
  • Clear open diameter is 0.775”
  • Optional Schrader Valve to check system pressure


Additional Information


1" (APV-1), 1.25" (APV-1-4), 1.5" (APV-1-1-2), 2" (APV-2)


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  • No merchandise may be returned without prior authorization and issuance of a return authorization number from IDC.
  • Credit will be based on invoice price.
  • A restocking fee of 20% (twenty percent) will be assessed on all returned goods unless a return occurred due to IDC’s error. Returned goods shall be shipped prepaid by Buyer and received in resalable, new condition before credit will be issued.
  • All returns are subject to inspection by IDC. Buyer will be billed for any freight charges incurred by IDC unless pre-approved by IDC and/or returned due to an IDC error.
  • No returns are accepted after 60 days.

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