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  • Digesters and Gas Storage

Duo-Deck™ Floating Digester Cover

The Duo-Deck™, or exposed truss, digester cover design prevents the roof plate and structural components of the cover from coming in contact with the digester contents, thereby avoiding the related corrosive effects. This type of roof plate protection makes Duo-Deck™ digester cover the safest design for maintenance personnel after several years of traffic under the cover.

Duo-Deck Floating Cover
The basic Duo-Deck™ digester cover structure is similar to that of a floating cover except for an extended rim skirt and a concrete ballast ring that is placed around the bottom of the rim skirt.  The ballast ring provides a pressure increase which activates waste gas burners and gas safety devices to release excess gas from the gas holder.  It is best suited to less active secondary digester applications and to applications requiring lower gas operating pressures.
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Features and Benefits

  •  Available in either vertical or spiral guided PFT® steel digester gas holders
  • Scum submergence whenever digester gas storage is depleted
  • Dry attic space for the protected location of insulation and ballast materials

 

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Marc Roehl
Product Manager - Anaerobic Technologies
262.521.8570
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Product Documentation

Brochure:
 Duo-Deck Floating Cover (pdf)

Parts & Services

For Parts and Service call 800.931.1755
or e-mail: envirexparts.water@siemens.com

Digester Retrofit Program - Siemens Water Technologies offers a complete Digester Retrofit Program, designed to address everything from simple repairs and upgrades to complete replacements.

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