Wanboke Environmental Protection Technology (Beijing) Co., Ltd

Product Center

STP-MLD 4 "pipeline mechanical leak detector

  Mechanical pipeline leak detector (for 4 "STP submersible oil pump)   The mechanical pipeline leak detector (MLD) has a precise production line and unique construction features to provide high flow rates and long service life for busy oil stations.

Category：

Submersible Pumping

Service Station Equipment

Key Word：

机械管线测漏器

管线测漏器

Product Accessories：

Design features

Three models meet precise applications: STP-MLD (blue) for gasoline, STP-MLD-D (tan) for diesel, and STP-MLD-E (grey) for some extended pipes
With a full 1-5/8-inch stroke, the solid copper piston fully moves the leak detection cone from the pipeline to provide a smaller flow limit and a maximum flow rate.
Polished brass cylinder liners and polished stainless steel piston rods ensure smooth operation and long PTFE seal life.
The 5.75 cubic inch volumetric heat compensation chamber helps reduce abnormal tripping due to heat shrinkage.

Liquid adaptability

Liquid viscosity limit: 70 SSU @ 15°C (60°F)
STP-MLD and STP-MLD-E models are listed by UL and cUL as suitable for fuel blends and contain up to 100% ethanol or methanol, and 20% methyl tert-butyl ether, 20% ethyl tert-butyl ether, or 17% methyl tert-butyl ether gasoline
The STP-MLD-D model can only be used with diesel or kerosene

Operational functions

All models are capable of detecting line leaks equivalent to 11.4 l/h at 10 psi.
By limiting the oil delivery flow rate to less than 11.4 l/h, all leak detector models are capable of detecting a 11.4 l/h leak signal at pressures equivalent to 10 PSI or more.
When no leak occurs and air is driven between the outlet of the leak detector and the dispenser solenoid, it takes 2 to 3 seconds for all models of leak detectors to complete a pipeline test.
With a test time of longer than 2 to 3 seconds, all leak detector models are capable of detecting a leakage signal of 11.4 liters per hour equivalent to 10 PSI or less.
When the pressure of oil delivered to the pumphead line is as low as 1 PSI after pump start-up, all models of leak detectors will remain in the "on" position.
All leak detector models are capable of detecting leaks in all pipelines approximately 3 meters above the leak detector installation location.
When the line pressure drops sharply below 3 PSI when the pump is turned off, all models of leak detectors will reset to the "trip" position

authentication

Third-party certification for continuous monitoring of pressure piping in accordance with EPA requirements 280.41(B) and 280.44(A)
All leak detector models are UL and cUL certified for installation of all 4" submersible pumps manufactured by FE Petro or similar submersible pumps manufactured by other brands

Quality certificate

The Franklin Gas Station Systems plant is ISO 9001 certified

Model	description
400500901	STP-MLD, Single Package - Mechanical Line Leak Testing for Gasoline (Blue)
400501901	STP-MLD-D, Single Package - Mechanical Line Leak Detection for Diesel or Kerosene (Sepia)
400502901*	STP-MLD-E, Single Package - Leak Testing for Mechanical Lines for Expandable Lines (grey)

Model	description
400500903	STP-MLD, Three One Pack - Mechanical Line Leak Detection, suitable for gasoline
400501903	STP-MLD-D, Three in One Package - Mechanical Line Leak Detection, suitable for diesel or kerosene
400502903*	STP-MLD-E, Three in One Package - Leak Testing for Mechanical Pipelines for Expandable Pipelines
400503903	Combined, three in one pack - containing two gasoline (STP-MLD) and one diesel (STP-MLD-D)

Remark:

STP-MLD and STP-MLD-E models are listed by UL and cUL as suitable for fuel blends and contain up to 100% ethanol or methanol, and 20% methyl tert-butyl ether, 20% ethyl tert-butyl ether, or 17% methyl tert-butyl ether gasoline
The STP-MLD-D model can only be used with diesel or kerosene
All of these models can only be mounted on the 2" NPT leak test port of a 4" submersible pump or on a leak detection "T" adapter

Mechanical Line Leak Detectors - Repair Parts & Accessories

Model	description
400518001	Leak detection "T" adapter
400449901	Leak Detector Hardware Pack (Accessories & Documentation)
400440101	Leak detector exhaust pipe

BACK

DHIB gun lift signal isolator

STP-MLD-HC 6 "pipeline mechanical leak detector

BACK

DHIB gun lift signal isolator

STP-MLD-HC 6 "pipeline mechanical leak detector