UL Catalog 2024-2025 - Flipbook - Page 54
MLD+ MECHANICAL
LEAK DETECTORS
FE PETRO® brand MLD+ mechanical leak detectors
provide precise leak detection for standard fuel and
biofuel applications on 4" submersible turbine pumps
(STPs). This lineup of advanced mechanical leak
detectors features reliable line leak detection capabilities
and maximum product flow rates. The MLD+ features a
compact, yet rugged design to reduce installation height
and provide accurate, hassle-free operation.
HIGHLIGHTS
• Two models to meet the needs of your standard fuel
applications include the MLD+G (blue cover, copper vent
tubing) for gasoline with up to 10% Ethanol and the
MLD+D (gold cover, copper vent tubing) for diesel with
up to 5% Biodiesel.
• Two models to meet the needs of your biofuel applications
include the MLD+AG (blue cover, stainless vent tubing) for
gasoline with up to 85% ethanol and the MLD+BD (gold
cover, stainless vent tubing) for diesel with up to 20%
Biodiesel or 100% Biodiesel.
• Piston style construction with reduced volume allows the
MLD+ to react quickly and provide more accurate leak
detection capabilities.
• A specialized metering pin unique to only the MLD+
provides precision leak detection for any type of pipework
system including flexible, rigid or a combination of the two.
• Burnished piston chamber provides smooth operation and
long service life.
SPECIFICATIONS
All models are capable of detecting line
leaks equivalent to 3 gph at 10 psi (11.4 lph
@ 0.70 bar) when installed properly with
Line leak detection the appropriate fuels - all models will signal
detection of leaks by restricting product
delivery to less than 3 gpm (11.4 lpm) and
taking more than 4 seconds to open
Delivery default
All models will remain in the open position
during product delivery to manifold, with
discharge pressures as low as 1 psi (0.07 bar)
- all models will reset to “tripped” when line
pressure delay is below 3 psi (0.21 bar) with
pump off
Detection distance
Detects leaks up to 10 feet (3 meters)
above the point of installation
Max. liquid
viscosity
70 SSU at 60° F (15° C)
Gasoline models
Gasoline models (blue cover, MLD+G and
MLD+AG) are also listed for fuel mixtures
containing 20% MTBE, 20% ETBE or 17%
TAME with gasoline as well as diesel fuels, fuel
oils, kerosene, Avgas, and jet fuels
Diesel models
Diesel models (gold cover, MLD+D
and MLD+BD) are also listed for
kerosene applications
Approvals /
Certifications
- cULus listed
- Third party certified to comply with US EPA
requirements 280.41 (B) and 280.44 (A) for
continuous monitoring of pressurized piping
- Consult factory for other applicable approvals
• Color coded covers easily identify the model to the
application (gold for diesel and blue for gasoline).
• Opens completely to allow maximum product flow during
fueling operation and remains open with discharge pressure
as low as 1 psi (0.07 bar).
• Compatible with FE PETRO® brand STPs, as well as
competitive STPs and line leak detector housings.
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