Campbell V-208900AV Safety Relief Valve 75 PSI

V-208900AV is an interstage safety relief valve with a 75 psi cracking pressure, designed to protect two-stage air compressor systems from interstage overpressure. It features a 1/8 in. NPT (MPT) connection, providing a standard thread size for easy integration between compressor stages. The part is commonly cataloged as Campbell Hausfeld OEM V-208900AV and appears in Speedaire/Grainger listings, reflecting its role as an interstage relief valve used to vent excess pressure and help prevent equipment damage. Suitable as a direct replacement on compatible Campbell Hausfeld or Speedaire air compressors, it relies on the 75 psi rating and standard 1/8" threaded fittings to restore safe interstage operation.