• High Temperature ‘Sequence IV’ Liquid Foam Test Bath

High Temperature ‘Sequence IV’ Liquid Foam Test Bath



Foaming of lubricating oils in applications involving turbulence, high speed gearing or high volume pumping can cause inadequate lubrication, cavitation, overflow and premature oxidation. The sample is blown with a controlled volume of air at 150°C. The resultant foam is measured at the end of each aeration period and at different intervals afterward. The amount of time required for the foam to collapse to “0” after the aeration period is also measured.

  •  High temperature liquid bath for ‘Sequence IV’ tests

For two tests at 150°C with a flow rate of 200mL/min. in accordance with ASTM D6082 specifications. Consists of a constant temperature bath with 1000mL test cylinders, certified diffusers, air delivery tubes and flowmeters. Microprocessor PID control provides quick temperature stabilization without overshoot and the bath is protected by an overtemperature control circuit that interrupts power should bath temperature exceed a programmed cut-off point. Dual LED displays provide actual and setpoint temperature values in °C/°F format. Quick response copper immersion heaters provide efficient high temperature operation, and a stirrer unit provides complete circulation for temperature uniformity of better than ±1°F (±0.5°C). Locking cams hold the test cylinders in a vertical position, and a separate rack is provided to hold the cylinders after removal from the bath. For operator safety, an acrylic heat shield surrounds the Borosilicate Glass bath jar.

  • Test Cylinders, 1000mL (2)
  • Bath Jar (1)
  • Diffuser Stones, calibrated and certified (2) 
  • Support Rack (1)
  • Air Delivery Tube Assemblies (2) 
  • Rubber Stoppers (2)
  • Air Outlet Tube (2) 
  • Acrylic Safety Shield, 18”

Conforms to the specifications of: ASTM D6082

Temperature Control: Digital Setpoint and Displays °C/°F switchable

Built-in Overtemperature Cut-off Protection
Bath Temperature: 150°C (302°F)
Air Flow Rate: 200 mL/min
Bath Capacity: 9 gal (38.5L) 

lxwxh,in.(cm): K43041/ K43049 16 3⁄4x15x31 1⁄4 (42.5x38x79.4)
Net Weight: 62 lbs (28.1kg)

Shipping Weight: 95 lbs (43.1 kg)

Dimensions: 28x24x44 in. (71.1x61.0x111.8 cm)

  • K43041 Sequence IV Foam Test Bath 
  • K43025 Diffuser Stone Test Apparatus 
  • K43026 Wet Test Gas Meter 
  • 332-005-005 Drying Tower 
  • 387-115-001 Air Pump 
  • 250-000-41C ASTM 41C Thermometer 
  • 344-005-001 Stainless Steel ‘Mott’ Diffuser
  • 344-005-01C Stainless Steel ‘Mott’ Diffuser Certified