EN Catalog 2021-22 - Catalog - Page 132
DEFENDER SERIES®
OVERFILL PREVENTION
VALVE (OPV)
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
magnetically-coupled actuator system to provide positive
shutoff. This unique method of shutoff eliminates any
penetrations in the valve, making it both vapour and leak
tight. The Defender Series® OPV provides safe, rapid, and
reliable fuel drops with simple installation, service, and
remote testing capability.
HIGHLIGHTS
SPECIFICATIONS
•
Approvals/Certifications
• ULc listed.
•
132
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 vapour 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.
•
Damaged drop tubes can be easily replaced instead of
having to purchase an entire new assembly.
•
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.
•
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).
•
The remote testing tool allows for remote testing of the
primary functionality without having to remove the OPV
from the rise.
•
•
ATEX approved.
EN/KIWA certified.
Dimensions
3.97"
(101 mm)
1.75"
(44.5 mm)
95%
Shutoff
Level
17.40"
(442 mm)
18.40"
(467 mm)
