2025 UL Ordering Catalog - Flipbook - Page 39
HIGH CAPACITY LINE
LEAK DETECTOR
SUBMERSIBLE
PUMPING SYSTEMS
ORDERING INFORMATION
COMPRESSION
FITTING
(VENT TO TANK)
High Capacity Mechanical Leak Detectors*
Model
Description
401315902
STP-MLD-HC leak detector complete with Adapter
“T” (blue paint, for gasoline)
401320902
STP-MLD-HCD leak detector complete with Adapter
“T” (black paint, for diesel)
401315901
Replacement high capacity leak detector ONLY
(blue paint, for gasoline)
401320901
Replacement high capacity leak detector ONLY
(black paint, for diesel)
401316930
Replacement cover assembly
401325901
Replacement Adapter “T” with cover assembly
400449902
MLD-HC hardware pack, includes fittings and
documentation
LEAK DETECTOR
9.30"
Notes:
1. MLD-HC models are listed for compatibility with fuel mixture containing up to 10%
ethanol with gasoline, up to 5% Biodiesel with diesel fuels, and 20% MTBE, 20% ETBE,
or 17% TAME with gasoline.
2. MLD-HCD models are listed for compatibility with diesel fuels containing up to 5%
Biodiesel and kerosene applications only.
5.81"
ADAPTER
3. All above models will only mount in Adapter “T” (P/N 401325901)
4. *Refer to high capacity MLD installation manual for complete fuel compatibility.
2.19" RADIUS
5.50"
SPECIFICATIONS
Line leak
detection
Detects leaks of 3 gph (11.4 lph) or greater
at 10 psi (69 kpa)
US EPA
requirements
Third party evaluated to comply with US EPA
requirements 280.41 (B) and 280.44 (A) for
continuous monitoring of pressurized piping
systems with maximum of 396.60 gallons for
rigid pipelines, maximum of 95.5 gallons for flexible
pipelines, maximum of 492.10 gallons
for combination of rigid and flexible pipelines
Size
7¾" × 15" (197 mm × 381 mm)
Weight
28 pounds (12.7 kg)
MLD-HC
The MLD-HC will remain in the open flow position
with dynamic line pressure at 2 psi (13.8 kpa) at
the outlet
High Capacity Line Leak Detector
Maximum static
head pressure
Maximum static head pressure without affecting
operation is 12' (3.7 m) from MLD-HC to
dispensing point
Minimum height
Minimum height required from 3" (76.2 mm) NPT
port centerline for top clearance is 9½" (241 mm).
Not position sensitive. Can be installed horizontally
to reduce clearance to 3" (76.2 mm).
− Compatible with all blends of motor fuels
Motor fuels
−
Approvals /
Certifications
including alcohol blends from 0 to 10% ethanol,
20% MTBE or ETBE with 80% gasoline, or 17%
TAME with 83% gasoline as well as diesel, fuel
oil, Avgas, jet fuel, or kerosene
Two models available: STP-MLD-HC for
gasoline, STP-MLD- HCD for diesel
− Consult factory for applicable approvals
− ISO 9001:2015 certified manufacturer
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