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Gum Evaporation Baths

Evaporate aircraft turbine fuel, motor gasoline and aviation gasoline samples under controlled conditions in accordance with ASTM specifications Conforms to ASTM D 381;

Koehler

Gum Evaporation Baths

Evaporate aircraft turbine fuel, motor gasoline and aviation gasoline samples under controlled conditions in accordance with ASTM specifications

  • Conforms to ASTM D 381; IP 131; ISO 6246; DIN 51784; FTM 791-3302
  • Choice of three- or six-unit models
  • Microprocessor programmable high accuracy temperature control
  • Built-in pressure regulators and air flowmeters
  • Maximum temperature:
  • 475°F (±1°F)/ 246°C (±0.5°C)

Gum formed during fuel storage can deposit on induction system surfaces, intake valves, stems and guides. To test for gum content, a 50 mL sample is evaporated in an aluminum block bath for a specified period under controlled conditions of temperature and flow of air. Electrically heated baths for determining existent gum in aircraft turbine fuels by steam-jet evaporation and in motor and aviation gasolines by air-jet evaporation. Unit consists of a high temperature evaporation bath with 100 mL test beakers and, for aircraft turbine fuels, a steam generator and steam superheater. Air/steam pressure regulator with gauge and a flowmeter adjusts air flow per ASTM specifications. Stainless steel jets deliver air or steam flow to the test wells through removable brass conical adapters. Microprocessor PID control provides quick temperature stabilization without overshoot. Fully insulated, aluminum block design assures safe, efficient high temperature operation. Dual LED displays provide actual and setpoint temperature values in °C/°F format. The bath is protected by an overtemperature control circuit.

Model K33800 (7151L10) is a six-unit bath with a built-in, thermostatically controlled superheater which delivers dried steam to the bath inlet for steam-jet method testing of aircraft turbine fuels. Digital-indicating solid state bath temperature controls have digital setpoint and display. Heater range: 0-3000 W. Electrical requirements: 220-240 V 50/60 Hz, Single Phase, 20.4A. Dimensions (W x D x H, inches): 32 1/2 x 20 x 20; weight: 230 lbs.

Model K33700 (7151L13) is a six-unit bath without the built-in superheater. Controls are housed in a separate cabinet connected to the bath by multi-conductor cable. Heater range: 0-3000 W. Electrical requirements: 220-240 V 50/60 Hz, Single Phase, 13.6A. Dimensions (W x D x H, inches): Bath - 28 x 20 x 16; control cabinet - 9 x 8 x 6 1/2; weight: 203 lbs.

Models K33780 and K33781 (7151L16 and L19) are three-unit baths without the built-in superheater. Controls are housed in the bath cabinet. Heater range: 0-1500 W. Electrical requirements: 115 V 60 Hz, Single Phase, 13.0A or 220-240 V 50/60 Hz, Single Phase, 6.8A. Dimensions (W x D x H, inches): 32 1/2 x 11 x 19; weight: 85 lbs.

 


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