UL Catalog 2024-2025 - Flipbook - Page 111
DEFENDER SERIES®
OVERFILL
PREVENTION VALVE
HIGHLIGHTS
• Magnetic coupler actuates the interior primary flapper
assembly and secondary shut-off valve when the float rises
outside of the valve, eliminating valve body penetrations and
any potential product or vapor leak points.
• After cutting to length in the field, the upper drop tube is
roll-crimped onto a top adapter outfitted with two O-rings and
then threaded onto the top of the valve body, eliminating the
need for drilling, rivets, epoxy, and flaring tools.
• Bottom drop tube is cut in the field and threaded onto the
bottom of the valve ensuring straight installation.
• The roll-crimp/thread method of installing drop tubes
ensures proper alignment of the drop tubes with the rest of
the OPV assembly, making installation and removal of the
entire assembly smooth.
SERVICE STATION
HARDWARE
The Defender Series® Overfill Prevention Valve (OPV) prevents
the overfill of an underground storage tank during a gravity-fed
product delivery. It employs a revolutionary magneticallycoupled actuator system to provide positive shutoff. This
unique method of shutoff eliminates any penetrations in the
valve, making it both vapor and leak tight. This also allows for
remote compliance testing of the primary functionality at
grade level without having to remove the OPV from the tank.
Drop Tube
Adapter
SPECIFICATIONS
- UL 2583 listed and ULc listed, MH21090
Approvals /
Certifications
- CARB certified, VR-101-U (FFS)
and VR-102 (OPW®)
- ATEX 2014/34/EU approved
- EN13616 certified
- KIWA BRL-K636/03 certified
Dimensions
3.97"
(101 mm)
1.75"
(44.5 mm)
• Damaged drop tubes can be easily replaced instead of
having to purchase an entire new assembly.
95%
Shutoff
Level
• Fully compatible with gas, gas/alcohol blends, diesel,
and Biodiesel.
• Compatible with industry standard 4" drop tubes allowing
retrofit into existing installations.
• The entire OPV assembly remains within the 4" inner
diameter of the riser preventing interference with other
tank components and also allowing removal even while
the tank is full.
17.40"
(442 mm)
18.40"
(467 mm)
• Actuates in both low- and high-flow applications and
functions within a broad range of flow rates from
25 gpm to 370 gpm (95 lpm to 1,400 lpm) and higher.
• The remote testing tool allows for remote testing of the
primary functionality without having to remove the OPV
from the riser.
OPW® is a registered trademark of Dover, Corp.
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