DSE Dispenser Sump

The Pre-Plumbed DSE Dispenser Sump – the latest member of OPW’s E-Series family of fiberglass containment sumps – features all of the premium quality, fast delivery lead times and extraordinary value of the original DSE model, but with factory-tested and assembled components. The pre-plumbed DSE sumps ship with the following items already installed:
Dispenser Top (Wayne Ovation or Gilbarco Encore), Hybrid (HEF) or Rigid (REF) entry fittings, Stabilizer bars, OPW 10Plus Double-Poppet Emergency Shear Valves, Flex connectors or NPT Pipe Nipples (Rigid Risers), Elbows and tees.

This makes the pre-plumbed DSE a “No-Brainer Secondary Container” option for DSE Dispenser Sump users who wish to save installation time, complexity and cost.

Features & Benefits

Taking the time, complexity and cost out of dispenser-sump installation, the Pre-Plumbed DSE Dispenser Sump offers the following features and benefits for retail-fueling operators:

  • Factory-installed components that are pre-tested in a controlled environment
  • Pre-plumbing that helps eliminate potentially costly in-the-field installation errors
  • Value price to compete against other fiberglass-sump models
  • Ready availability that eliminates long delivery lead times
  • Backing by OPW’s legendary service, support and expertise

Most dispenser sumps force fueling station operators to choose between quality, speed or value. Produced using an Advanced Composite Technology manufacturing process, the DSE Dispenser Sump can deliver all three: best-in-class quality, fast lead times and affordability without sacrifice. DSE is installed beneath fuel dispensers to provide access to and secondary containment of dispenser plumbing, emergency shear valves and underground piping connections.

Features & Benefits

Through OPW expertise, the DSE Dispenser Sump delivers cost-effective peace of mind for retail fueling operators. The following features put DSE ahead of the competition as the No Brainer Secondary Container.

  • Advanced Composite Manufacturing Technology
  • Quick and Efficient Manufacturing Time per Unit
  • Designed for Easy Nesting, Stacking and Unstacking
  • Smooth Surface on Both Sides of the Sump Wall
  • One Base for All Dispenser Models
  • Closed-Molded Manufacturing Process
  • Backed by OPW’s legendary service and expertise
  • UL and ULc Listed

Tank Sumps

OPW Fibrelite tank sumps function as a liquid-tight isolation container providing secondary containment for tank fittings valves, pumps and Flexworks or Fiberglass pipe fittings.

They also provide surface access to the tank itself, as well as a clean, dry environment for future service and maintenance. The height – adjustable risers to accommodate different tank bury depths.

Features & Benefits

  • Material: Fiberglass
  • Watertight – structure will not deform under water pressure
  • For depths greater than 60”, use S8CRD “deep bury” sumps or extensions.
  • Vacuum testable – during and after installation
  • Available for both new and retrofit applications
  • Sump extensions available; extend sump height by 12″ per extension


FlexWorks Dispenser Sumps/Pans from OPW Fueling Containment Systems are installed beneath fuel dispensers to provide access to, and secondary containment of, dispenser plumbing, emergency shear valves and underground piping connections.

Features & Benefits

  • Contractor-Friendly Installation – open top provides unrestricted access to the inside of the containment chamber to facilitate entry fitting and piping installation. Dispenser mounting frame is attached after plumbing is complete.
  • Deeper Burial Capability – 37″ burial depth allows piping slope requirements to be met more easily in layouts with long piping runs.
  • Simple Field Height Adjustment – the top portion of the chamber can be quickly and easily trimmed along the ribs to ensure maximum installation flexibility.
  • Full Perimeter Liquid Collection Channel – facilitates quick leak detection and allows flexibility in locating leak sensors.
  • Convenient Shipping and Storage – sump boxes are partially nestable. Two chamber sizes accept multiple frames to accommodate all common dispensers.
  • Polyethylene Top – polyethylene top will not corrode.


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