Diesel Fuel Nozzle Shear Stability Tester in ASTM D6278 for Polymer Oil

>>> The apparatus for measuring the shear stability of polymer-containing oils, diesel nozzle method, the measurement sample before and after the movement of the shear viscosity, its value drop divided by the kinematic viscosity values of viscosity before shear test results as a percentage. The device is currently the only test instrument meets ASTM D6278 Method.      
>>> The apparatus consists of motor, coupler, gears, oxygen bomb tray, oxygen bomb, heater, temperature controller, touched LCD screen and pressure transmitter.

>>> This test method covers the evaluation of the shear stability of polymer-containing fluids. The test method measures the percent viscosity loss at 100°C of polymer-containing fluids when evaluated by a diesel injector apparatus procedure that uses European diesel injector test equipment. The viscosity loss reflects polymer degradation due to shear at the nozzle.
>>> This test method evaluates the percent viscosity loss for polymer-containing fluids resulting from polymer degradation in the high shear nozzle device. Thermal or oxidative effects are minimized.

1.Original German Brand jet pump with nozzle and atomizing chamber;
2. Bowch-type axial nozzle injector, the nozzle bracket has a filter cartridge;
3. The spherical cooler is equipped with a cooling jacket, which can effectively cool the oil sample and ensure that the temperature of the oil sample is between 30 and 35 °C;
4. The liquid flow meter controls the flow rate, digital display, 170cm3±5cm3/min;
5. The automatic stroke counter can automatically cut off the power supply;
6. Three-phase motor, power 1100W, speed 925±25r/min;
7. There is a distribution plate in the glass test tube, and there is a three-way piston at the cooling outlet;
8. Microcomputer temperature controller, digital display, accuracy ±1ºC, PT100 sensor;
9. Fully enclosed compressor refrigeration, large cooling capacity and low noise;
10. Digital timer records the test time with wind sound;
11. Independent desktop controller, highly integrated function buttons, easy to operate;
12. There is an electronic controller to control the pressure on the pressure pipeline, and the digital display pressure is 17.5Mpa±0.35Mpa.
13. Instrument size: host: 800*250*1100mm; circulating water bath: 240*510*670mm;
14. Net weight: 56KG

Fluid reservoir is open on the top, has approximately a 250mL capacity, has a 45-mm inner diameter, and is calibrated in units of volume. It is fitted with an internal fluid distributor. A 40-mm diameter watch glass with serrated edges is an acceptable distributor plate. The distributor reduces the tendency of fluid channeling. Temperature is measured by a thermometer suspended in the center of the fluid reservoir. The bottom of the thermometer bulb shall be 10 to 15mm above the entrance to the drain tube opening. Other temperature measuring equipment positioned at the same location may also be used. The outlet is equipped with a three way stopcock. The three way stopcock is of a cone type with a non exchangeable solid plug with an 8-mm nominal bore size. Transparent, plastic tubing, is used to connect the three-way stopcock to the pump inlet.

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