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AA-60 Pressure Relief Valve

The Waterman Model AA-60 may be used for pressure relief on any pipeline with operating pressures up to maximum 120 psi where a large volume discharge is needed. The AA-60 meets the requirements of the Natural Resource Conservation Service specifications and has a larger orifice that is a feature not found on most other makes. It is available in three configurations, each filling a specific customer need.  The AA-60A has a pressure discharge setting that is factory set for convenience and accuracy.  The model AA-60B is designed to be set in the field utilizing actual pipeline pressure.  The model AA-60C is factory preset, and includes an aluminum spring housing which protects the top mounted spring from weather and also discourages tampering.  Automatic operation is provided by specially manufactured springs that are engineered to provide a high degree of sensitivity and provide maximum discharge.
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