The metering fuel nozzle LLY-25 series is a combination of horizontal screw-wing flow meter and fuel gun. It is a meter instrument used to measure the volume flow rate of liquid (petrol, diesel, engine oil, hydraulic oil, etc.) flowing through the pipeline. In virtue of reliable performance, this metering fuel nozzle LLY-25 is suitable for filling petrol and other light oil products. Metering fuel nozzle LLY-25 is used for on-farm accounting, both in stationary installations and in ground-based refueling and pumping facilities. It is used as a pistol for refueling in small settlements at gas stations of a local scale. Technical Parameter â??Conditional pass â?? 25 mm â??Working pressure â?? 1 MPa â??Permissible error: �±1% â??Min.flow â?? 25 L/min â??Max flow â?? 120 L/min â??Division price â?? 1 L â??Max. set dose â?? 9999 L â??Operating temperature from -20 to +50 Working Principle Having roller pointers for a one-time count of the amount of liquid, the gun with a counter serves to count the amount of fuel that has passed through it. Roller disposable pointer crane LLY has a device for setting the readings to zero. Accounting for the amount of liquid that has passed through the counter gun is based on counting the number of revolutions of the drive screw inside the fuel dispenser gun. The flow of the measured fuel, entering the meter and passing through the volume meter, loses part of the pressure to create a torque that causes the screws to rotate. The measurement of the amount of liquid by a pistol with a counter occurs due to the periodic cutting off of certain volumes of it contained in the cavities between the cylindrical bores of the holder and the screws. This device is a combination of the simplest fuel dispenser gun and fuel meter, the accuracy and performance of which are inferior to industrial designs. Pressing the lever opens the valve, fuel flows through the gun. When the faucet lever is released, the valve closes under the action of a spring, blocking the flow of liquid. The adjusting screw is intended for equipment calibration. The drain pipe of the dispensing gun with a counter is used to direct the liquid into the container when refueling.
