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r MANUAL PRESSURE RELIEF: PRESSURE RELIEF VALVE: Another unique FE Petro ` The IST pressure relief valve is the same simpl( feature.When necessary valve used for years in our standard during maintenance to submersibles.Factory set to relieve •�l bleed line pressure to zero, at or above pump pressure. a vent screw is provided. This valve is protected i By turning this screw, from particles in the line pressure is diverted fuel by a fine back to the tank. mesh screen. s P S ®R � aF Reduces fuel discharge into the sump manhole or dispenser pan during servicing,further protecting By keeping static line pressure as high as service technicians and the environment. possible,mechanical leak detectors make fewer tests,and therefore last longer. A RELIABLE CHECK VALVE: The IST uses FE Petro's AIR ELIMINATOR: proven line check The IST uses the valve.At 2 3/4" in standard x diameter,this valve FE Petro air ' reduces pressure loss eliminator, at high flow rates, which has a resulting in faster double function fueling times and lower as the syphon power consumption. _ primer for tank syphon systems. The FE Petro check valve is proven to seal.You can avoid purchasing additional check valves when the IST is used with some electronic line The air eliminator is a one way valve,allowing' leak detectors because of this proven reliability. air to return to the tank,but not re-enter the piping system. SUPERIOR BEARING COOLING: The IST uses the SYPHON CHECK VALVE: exclusive Optional for syphoned tanks. FE Petro cooling Another time proven performer. system.This unique system continually 0 passes over 1 GPM through a fine bronze filter and \ directly through motor bearings whenever pump is operating. The FE Petro syphon check valve can be easily cleaned in the field.It is not necessary This system has been designed to extend critical to replace with a new valve if it becomes bearing and motor life. blocked from particles in the fuel tanks.