Laserfiche WebLink
• <br />I� <br />or tWVVV The LD -2000 leak detector is a <br />mechanical, pressure sensitive, <br />continuous duty line monitor. <br />It has unique design and <br />function, yet it is designed for use in standard submersible pumps or adapter tees. <br />A patented, internal, free-floating check valve positioned at the downstream end of the leak <br />detector protects the leak detector against damage caused by hydraulic hammer (a rebounding <br />pressure wave formed when the dispenser nozzle is closed. The check valve also maintains <br />line pressure, sufficient to allow dispensation of fuel immediately, providing that the down- <br />stream dispensing line has no leak. <br />Maintains pressure in the delivery line when no leak is present <br />Detects leaks even if substantial hydrostatic shock occurs in the dispensing line <br />Reduces unscheduled pump maintenance due to check valve deterioration or <br />functional element deterioration <br />• Provides improved performance under extreme climatic conditions <br />• Sees a leak of 3 GPH or smaller at 10 psi for a full 18 months after date of installation- <br />• Overcomes problems caused by thermal contraction and line resiliency in larger <br />delivery systems <br />EST RESULTS - A nationally -recognized independent environmental consulting firm <br />conducted twice the mandated number of EPA protocol tests on the LD -2000. Here is what <br />they found: <br />The LD -2000 exceeds the EPA regulations that require detection of a 3 GPH leak at 10 psi <br />with a detection probability of 95 % and a false alarm probability of 5 %. Under conditions <br />of thermal expansion or contraction, the LD -2000 is capable of detecting a 3 GPH leak with <br />a probability of detection of 100% and a false alarm probability of 0%. <br />Under neutral test conditions, the LD -2000 detected leaks under 2 GPH. <br />From pump start-up, the average leak sensing time to full flow was less than 5 seconds. <br />125 mi vapor resiliency was added to the line system with no failures. <br />The LD -2000 detected leaks in the pipe system up to 10' above the leak detector. This test, <br />called a "Head Pressure Reset Test," ensures that all buried pipe is protected. <br />K <br />