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npr 15 04 0e_20a Va* "%-tj Pacific Petroleum 2091"-'13 Isis P• 10 'Message Page 3 of 4 1.The Tripped or Bottom x,Leak$engin Position 3. Non-Leak or Full Frow Position 9 Position f _ Y When the system is less than in this position the system This position allows full flow, 1 psi,the piston and poppet pressure has increased to The poppet will remain in are in the"bottom"or"tripped" approximately 12 psi and all the approximately this position as position.in this position of the flow must travel around the long as the system pressure poppet,product flows through metering pin which Limits it to remains at-aboutpumping the horizontal hole In the approximately a 3 GPH rate tat pressure.If thepressurein the poppet and around the 10Psi).If there is a leak in the system drops when the pump metering pin at a rate of system which will allow leakage is turned off,either due to approximately 2 GPM flow into to exceed this amount,the line thermal contraction of the the delivery line when the pressure will not build beyond product or due to a leak,the submersible pump is running_ this point and the valve will piston moves downward and In normal operations the piping remain in the leak sensing the poppet engages and seals remains full of fluid and when position with the main flow inside the cage at about 3 psi, the submersible pump is blocked.If them is an attempt or approximately 10 feet of turned on,with a flow rate of 2 to dispense while the valve is In head, in gasoline_Any time the GPM through the poppet, this position,the line pressure pump is turned on attar the pressure builds rapidly and the will drop to less than 1 psi,the seal on the poppet is inside poppet moves to the leak < piston will respond,and the the cage,a line test will be sensing position. poppetwill return to Position 1 performed, where 2 GPM will flow to the dispensers.Leaks smaller than 3 GPH will be indicated by the STP-MLO taking longer than three seconds to open _ -- ----__— -- comgl_etely because-same-of--- -- the flow teaks out of the system and the rest builds pressure. If there is no leakage in the system,the small flow around the metering pin increases the line pressure and in approximately three seconds the piston will move the poppet to Position 3. MLOSO01 Rev.071" _® "Left elIck'ro VIEW pd To5AVE pdf"Rig ht Click'&choose Corporate Submemble EMPD-FracUanat HPMMom Fuelinosystems International TOP t 4113/04 bT 39Vd NOG- I HlAT 1 9!rt1caatc.a7 i7:CT baa7icrica