Annular Bentonite Seals

Annular Bentonite Seals

ECT's Expanding Bentonite Sleeve & Foam Bridge thread above the Prepacked Well Screen to provide a fast, low permeability annular seal below the water table. Bentonite Quick Sleeves and Foam Bridges are available individually or as a combo unit. Bentonite sleeves and foam bridges can be stacked in line for a superior level of protection. Use of prepacked well screens, combination bentonite quick seal sleeves and expanding foam bridges take the guesswork out of gravel pack and annular seal placement (a common problem when working with heaving sands or limited annular space such as direct-push Installations). 

12 Items

  • 2" Foam Bridge

    ECT Mfg., Inc.

    2" Foam Bridge

    Compressible foam seal wrapped in a polyethylene sleeve expands instantly when exiting the bottom of the drive casing to provide positive placement of a bentonite barrier that prevents solids from entering the screened area. Expands when exiting the...

    $39.00
  • 1.5" Foam Bridge

    ECT Mfg., Inc.

    1.5" Foam Bridge

    Compressible foam seal wrapped in a polyethylene sleeve expands instantly when exiting the bottom of the drive casing to provide positive placement of a bentonite barrier that prevents solids from entering the screened area. Expands when exiting the...

    $38.10
  • 1.0" Foam Bridge

    ECT Mfg., Inc.

    1.0" Foam Bridge

    Compressible foam seal wrapped in a polyethylene sleeve expands instantly when exiting the bottom of the drive casing to provide positive placement of a bentonite barrier that prevents any solids from entering the screened area. Expands when exiting the...

    $36.75
  • .75" Foam Bridge

    ECT Mfg., Inc.

    .75" Foam Bridge

    Compressible foam seal wrapped in a polyethylene sleeve expands instantly when exiting the bottom of the drive casing to provide positive placement of a bentonite barrier that prevents any solids from entering the screened area. Expands when exiting the...

    $36.00
  • 2" Bentonite Sleeve

    ECT Mfg., Inc.

    2" Bentonite Sleeve

    Bentonite Seal Expanding Pack Protective Paper Sleeve filled with granular bentonite  Constructed on 2" S40 x 30" PVC Riser Male X Female Flush Thread 2 tpi There is no foam bridge on this item

    $80.00
  • 1.5" Bentonite Sleeve

    ECT Mfg., Inc.

    1.5" Bentonite Sleeve

    Bentonite Seal Expanding Pack Protective Paper Sleeve filled with granular bentonite  Constructed on 1-1/2" S40 x 30" PVC Riser Male X Female Flush Thread 8 tpi There is no foam bridge on this item

    $75.00

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