• 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.
• Color coded covers easily identify the model to the application (gold for diesel and blue for gas).
• 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.

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 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
• 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
• Detects leaks up to 10 feet (3 meters) above the point of installation
• Max. liquid viscosity of 70 SSU at 60 °F (15 °C)
• 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 (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.

Standard Fuel MLD+ Mechanical Leak Detectors

Biofuel MLD+ Mechanical Leak Detectors

• MLD+G are listed for compatibility with fuel mixtures containing up to 10% ethanol with gasoline, up to 5% biodiesel with diesel fuels, and 20% MTBE, 20% ETBE, or 17% TAME with gasoline.
• MLD+D models are listed for compatibility with diesel fuels with up to 5% biodiesel and kerosene applications only.
• MLD+AG models are listed for fuel mixtures containing up to 85% ethanol with gasoline and 20% MTBE, 20% ETBE, or 17% TAME with gasoline as well as diesel fuels, fuel oils, kerosene, Avgas and jet fuels.
• MLD+BD models are listed for diesel with up to 20% biodiesel or 100% biodiesel and kerosene applications only.
• All above models will only mount in the 2″ NPT leak detector port of a 4″ submersible turbine, including competitive models, or in a leak detector adapter tee (sold separately below).
• MLD+ models are listed for use with rigid pipelines up to 165.1 gallon capacity, with flexible pipelines up to 109.8 gallon capacity, and with combination rigid/flexible pipelines up to 274.9 gallon capacity.

MLD+ Mechanical Leak Detector Repair Parts & Accessories

MLD+ Downloads