Existent Gum Tester LEGT- B32

Labtron LEGT-B32 is designed with unique air compressor and flowmeter to meet industrial requirements. This instrument is designed and made as per ASTM D381 Standard test method for gum content in fuels by jet evaporation.

Bath type
Bath capacity
Ambient temperature
Relative humidity
Temperature controlling range
Temperature controlling accuracy
Heating type
Evaporation bath type and size Aluminum bath φ260 × 130 mm
Constant temperature bath
Holes for testing 5 pieces
Size of holes for testing cylinder φ51 × 70 mm
Flow rate display
Working temperature 160 ℃ ~ 165℃
Temperature controlling methods
Temperature display
Working pressure for decompression valve 0.07 MPa
Gas source
Air flow rate at jet nozzle 600 ml / s
Dimension 590 x 480 × 340 mm
Total power consumption
Heating power
Power supply AC 220 V ± 10 %, 50 Hz; 3.5 kW
  • Metal bath as the heating system
  • Rapid heating speed and uniform bath temperature
  • Five samples can be determined simultaneously
  • Efficient and convenient
  • High quality air compressor
  • Automatic temperature controlling method
  • Independent flow meter
  • Flow rate can be manually controlled and displayed using float ball flow meter

It is widely used in petroleum, chemical, automobile and development industry. It is the best choice for aviation gasoline and automotive gasoline manufacturing, using, and researching companies for existent gum determination.

Evaporation bath type and size Aluminum block bath, φ260 × 130 mm
Holes for testing 3 pieces
Size of holes for testing cylinder φ51 × 70 mm
Flow rate display Flow meter
Bath type Oil bath
Bath capacity 5000 ml ± 50 ml
Ambient temperature Room temperature to 35 °C
Relative humidity ≤ 85 %
Temperature controlling range 10 ℃ ~ 35 ℃
Temperature resolution 0.001 ℃
Mean value of heat capacity 15 kJ / K
Ambient temperature 20 ℃ ± 5 ℃
Temperature measurement range 10 ~ 35 ℃
Repeatability error ≤ 0.2 % (Grade C)
Endured pressure in oxygen bomb 20 MPa
Operation environment temperature 15 ~ 28 ℃
Heat capacity 14000 ~ 15000 J / K
Temperature measurement range 10 ~ 35 ℃
Repeatability error ≤ 0.2 % (Grade C)
Endured pressure in oxygen bomb 20 MPa
Graduated flasks 100 ml
Scale division of graduated flask 1ml
Distillation flask 125 ml
Ambient temperature ≤ 35 °C
Ambient temperature -10°C to 35°C
Relative humidity ≤ 85 %
Thermometer Each one for 70°C to 90°C , 100°C to120°C , and 125°C to 150°C
Scale division 0.1 ℃
Heating power 2 kW
Cooling power 0.5 kW
Steam temperature 0 to 400℃
Oven temperature 0 to 500℃
Coking furnace Metal furnace
Heating mode Electric heating
Test unit 5 units
Temperature range Ambient to 550°C
Porcelain crucible 30 ml
Inner iron crucible 75 ml
Outer iron crucible 190 ml
Burner Mig Burner
Bath type Four holes with a furnace
Heating type Electric resistance furnace
Temperature controlling range 0 ~ 520 °C
Temperature controlling accuracy ± 5 °C
Capacity 2.0 kVA
Speed of voltage increase 2 k V/ s
Voltage inspection accuracy 0.01
Breakdown sensitivity < 0.1 kV
Vessel Volume  4000 ml × 2
Power of Vacuum pump 160 W
Negative power 3.7 kPa(27.75 mmHg)
Power of shaking machine 30 W