Well Seals

Well Seals for Landfill Leachate and Gas Wells


DGSI manufactures a family of well head seals. The DGSI well seals provide an easy method to connect fluid and air lines, simplifying installation. Strain relief seals isolate the individual tubing sizes that support the operation of a pneumatic pump from the particle vacuum being placed on the well for methane removal.

Well Seals

Well Seal with Air-In and Fluid-Out kits.


  • The well seals are attached to the casing by mating flanges or by sealing on the diameter of the well casing with a Fernco-type flexible coupling.
  • Additional threaded openings through the seals are provided for fluid level, pressure and or temperature measurement.
  • Well seal accessories include an air-in / fluid-out kit, manifold flanges, pump exhaust diversion kit and pump flow control. Each well seal assembly includes hose clamps for attaching bundled Nylon™ tubing to an SRX pump and cable clips for securing the stainless steel cable for pump support.
  • Strategic mounting brackets that provide support for filter regulators and pulse counters are standard on all well seals.

Well Seal, Flange, or Plug Style

Style Flange Flange w/ 2" FNPT Plug
Diameter 6" 8" 10" 8" 4" 6" 8"
Part No. TR-27601 TR-27602 TR-27603 TR-27604 TR-272 TR-271 TR-270

6" Plug Seal with Methane Extraction

Style 6" Plug w/ Methane Extraction
Part No. TR-27006

8" Universal Plug and Flange

Style Plug w/ Methane Extraction Flange w/ Methane Extraction
Part No. TR-27005 TR-27605

Exhaust Valve

Style E-Valve
Part No. TR-697

Air In / Fluid Out Kit

Part No. TR-274


Style Fluid Out Manifold Air In Manifold
DiamEter 2" 3" 4" 2" 3" 4"
Part No. TR-27501 TR-27502 TR-27503 TR-27501 TR-27502 TR-27503

Exhaust Diversion and Flow Control Kits

Kit Type Exhaust Diverter Kit Exhaust Restrictor Kit
Part No TR-280 TR-281

Additional DGSI landfill leachate or gas support products include:

  • Landfill pumps
  • Nylon bundled air and fluid tubing
  • Cycle / pulse counter
  • Stainless-steel pump support cable
  • Well-head module