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QVR Valve

  1. Install vacuum gauge in vacuum line between QVR valve and EPR valve.
  2. Disconnect hose from inlet port "S" and connect vacuum pump to valve. Apply 22 in. Hg and check that vacuum gauge reads 20.7 in. Hg within 1.7 seconds.
  3. Reduce vacuum at vacuum pump to 1 in. Hg and check that other vacuum gauge reads the same within 1/2 second.
Fig 1: Testing Quick Vacuum Response (QVR) Valve
G2608
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