Existent Gum Tester LEGT- B30

Labtron LEGT- B30 is manufactured and made as per ASTM D381-12 “Test Methods for Existent Gum in Engine Fuels”. It is suitable to determine the tendency of fuels (gasoline, coal oil, diesel oil) to form gum when used in the motor.

Bath type Oil bath
Bath capacity 5000 ml ± 50 ml
Ambient temperature Room temperature to 35 °C
Relative humidity ≤ 85 %
Temperature controlling range RT to 250 °C
Temperature controlling accuracy 150 °C ± 3 °C;180 °C ± 3 °C;250 °C ± 5 °C
Heating type Electric heater
Evaporation bath type and size
Constant temperature bath
Holes for testing
Size of holes for testing cylinder
Flow rate display
Working temperature
Temperature controlling methods
Temperature display
Working pressure for decompression valve
Gas source
Air flow rate at jet nozzle
Dimension 840 x 380 x 600 mm
Total power consumption ≤ 1200 W
Heating power 1000 W
Power supply AC 220 V ± 10 %, 50 Hz
  • Economical in design and size
  • High temperature oil bath and control box
  • Oil bath adopts stainless steel structure, durable

It is widely used in petroleum, chemical, automobile and development industries. It is also suitable for determining tendency of fuels (gasoline, kerosene and diesel oil) to form gum when the fuels are used in the engine.

Evaporation bath type and size Aluminum bath φ260 × 130 mm
Holes for testing 5 pieces
Size of holes for testing cylinder φ51 × 70 mm
Working temperature 160 ℃ ~ 165℃
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
Viscosity measurement range 10 ~ 2000000 MPa•s
Ambient temperature 5 °C ~ 35 °C
Ambient humidity Not more than 80 %
Spindles Four spindles of No.1 ~ 4
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
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
Evaporation bath type and size Aluminum bath φ260 × 130 mm
Holes for testing 5 pieces
Size of holes for testing cylinder φ51 × 70 mm
Working temperature 160 ℃ ~ 165℃
Bath type Oil bath
Bath capacity 5000 ml ± 50 ml
Ambient temperature Room temperature to 35 °C
Relative humidity ≤ 85 %
Ambient temperature (-10)℃ ~ 35 ℃
Relative humidity ≤ 85 %
Sample cup Inner diameter 31.0 ~ 32.0 mm
Sample cup Wall thickness 1.0 ~ 1.5 mm
Temperature controlling accuracy ± 0.5 ℃
Refrigeration system New-type refrigeration compressor
Cold trough Two holes in one trough, and same temperature
Ambient temperature ≤ 30 ℃
Refrigeration system New-type refrigeration compressor
Controlling temperature of cold trough Cold trough I: RT ~ (-51) °C, ± 1°; Cold trough II:RT ~ (-80) °C, ± 1 °C
Ambient temperature ≤ 30 ℃
Relative humidity ≤ 85 %
Sample hole 4 pieces
Speed of stirring motor 1400 rpm
Speed for sample stirring 1000 ± 50 rpm
Ambient temperature Room temperature to 35°C
Sample hole 2 pieces
Speed of stirring motor 1400 rpm
Ambient temperature 10 to 35°C
Temperature controlling range Room Temperature to 100°C
Sample hole 4 pieces
Sample quantity 4 to 12 pieces
Ambient temperature Room temperature to 35 °C
Temperature controlling range Room temperature to 100°C