The Defender Series® Adjustable Drop Tube Adapter for OPV provides precise, post-installation control of valve shutoff position, allowing installers to fine-tune OPV depth by ±1 inch after drop tubes have been cut and installed. This flexibility helps maximize tank fill levels, while supporting proper tank-volume shutoff operation and compliance with local and UST fill-level regulations.
With the ability to precisely adjust shutoff level, operators can maximize their usable tank fuel capacity, reduce lost storage volume, and optimize every fuel drop.
The adjustable adapter design enables accurate installation of the OPV at the required height from the start, helping contractors meet UST regulations on the first installation and eliminating rework, compliance risk, or costly downtime.
Tested through thousands of fill cycles, this design allows for precision shut-off positioning, while also staying in place after “line shock” of valve shut off once tank capacity is reached.
Upgrading cost is minimized as adapter can be easily retrofitted to the existing upper drop tube without replacing.
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