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Subject Valves Remove constraint Subject: Valves

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    • 1960-Sep-10

    Close-up view of assorted valves, pipes, and fittings at the Hercules Powder Company plant in Parlin, New Jersey. Per notations accompanying the photograph, this system, which was used to handle hydrochloric acid, was…

    • 1960-Sep-10

    Close-up view of solid Penton needle and plug valves, as well as Penton pipes and fittings, at the Hercules Powder Company plant located in Parlin, New Jersey. Penton was a Hercules-branded chlorinated polyether used as…

    • 1960-Sep-10

    Close-up view of assorted valves and pipes at the Hercules Powder Company plant located in Parlin, New Jersey. Per notations accompanying the photograph, these valves and pipes were lined with Penton, a Hercules-branded…

    • circa 1979

    High performance liquid chromatography analyzes the components of a sample by pumping a solution through a column containing an adsorbent material, which separates and interacts distinctly with the components. The flow…

    • circa 1979

    High performance liquid chromatography analyzes the components of a sample by pumping a solution through a column containing an adsorbent material, which separates and interacts distinctly with the components. The flow…

    • circa 1978

    High performance liquid chromatography analyzes the components of a sample by pumping a solution through a column containing an adsorbent material, which separates and interacts distinctly with the components. The flow…

    • Undated

    High performance liquid chromatography analyzes the components of a sample by pumping a solution through a column containing an adsorbent material, which separates and interacts distinctly with the components. The flow…