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    Mactenn Systems, Ltd.
    One Bull Lane
    Acton Sudbury
    Suffolk CO10 0BD

    (44) 01787 882422

    www.mactenn.com

    • Mini Case Study: M.W. Kellog Company

      APPLICATION FEATURE


      Let down of polypropylene powder utilizing Inflatek Valve®
      Customer M.W. Kellogg/Phillips
      Location Pasadena, TX, U.S.A.
      Industry Engineering and Construction Services
      Application Continuous discharge of powder from separator vessel to degassing hopper.
      Technology Let-Down Chambers
      Systems Summary PHV Inflatek Valves®


      System Objectives

      System design requirements:

      1. Valve constructed of 304 stainless steel, finished to #300 buff.

      2. Let-Down polypropylene powder from 0.19 barg to 0.14 barg utilizing Inflatek Valves® and powder chamber.

      3. Continuous discharge

      4. Low maintenance
      IMAGE
      Inflatek Valve®


      Material Characteristics

      Material Polypropylene Powder
      Bulk Density 24.97 lb/ft3
      Particle Size 800-900 Microns (average)
      Flowability Good
      Temperature 266°F (Design)

      IMAGE

      System Description

      Two 500 mm PHV Inflatek Valve® "continuously" discharge polypropylene powder from a powder separator to a degassing hopper while separating the two vessels. The powder holding chamber installed between two 500 mm Inflatek Valves® which were constructed of 304 stainless steel with an inflatable seal constructed of EPDM and a 304 stainless steel cleaning ring to protect the seal. The polypropylene powder lets-down from a pressure of 0.19 barg to 014 barg during the process.



      System Performance

      Handling Rate 37,485 lb. / hr.
      Cycle Time 40 seconds (both valves)
      Flow Direction Gravity Fed
      Average Air Consumption 2 SCFM at 80 psig

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