Foaming Characteristics Apparatus
Performs two tests at 75°F (24°C) and two tests at 200°F (93.5°C). Consists
of two 12x18" (30.5x45.7cm) constant temperature baths with 1000mL test
cylinders, certified diffusers, air delivery tubes, and flowmeters
(94mL/min.) for each sample. Baths are equipped with microprocessor temperature
controls, copper immersion heaters and 1/20hp circulation stirrers to
maintain temperature uniformity of ±1°F (±0.5°C). 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. Test cylinders are
held securely in place by quick-locking cams in the bath cover assembly. A
separate stainless steel support rack is provided to hold the test cylinders
after removal from the bath. Cold bath (24°C) has built-in coils for
circulating exit air from the high temperature test cylinders prior to
passing to a volume meter, and a separate coil for circulating cooling water
or refrigerant when the ambient temperature exceeds the test temperature.
Supplied with rubber stoppers and glass air outlet tubes for each cylinder.
Bath controls are enclosed in a finished steel base with chemical resistant
polyurethane enamel finish. Communications software (RS232, etc.),
ramp-to-set and other enhanced features are available as extra cost options.
Contact your Koehler representative for information.
FTM 791-3213 Aircraft Lubricants Test
Employs more severe conditions – smaller sample, increased air flow, longer
aeration period – to test the foaming characteristics of aircraft-turbine
lubricants. All models are available on special order for FTM 791-3213
testing. Please contact us for specifications and ordering information.
In addition to the standard configurations described, Koehler liquid-bath
foaming characteristics test equipment can be ordered in the following custom
• Dual-Twin 24°C/D892-150°C/D6082
• Dual-Twin 93.5°C/D892-150°C/D6082
• Single-Bath model for ASTM D892 (for 24°C and 93.5°C tests)
Custom models have the same operating features and characteristics as the
standard models and each bath is equipped with the necessary air flow and
control accessories required to perform the applicable test method. Contact
your Koehler representative for ordering information and pricing.
Test Cylinders, 1000mL
Diffuser Stones, calibrated and certified
Air Delivery Tube Assemblies
Air Outlet Tubes
Conforms to the specifications of:
ASTM D892; IP 146; DIN 51566; FTM 791-3211, 791-3213*; NF T 60-129
*Requires modifications to standard equipment.
Air Flow Rate: 94mL/min
Bath Temperature: 24°C (75°F) and 93.5°C (200°F) - Operator Variable
Bath Capacity: 9 gal (38.5L) each bath
Digital Setpoint and Displays °C/°F switchable
Built-in Overtemperature Cut-off Protection
115V, 50/60Hz, 16A
220-240V, 50/60Hz, 8A
K43002: 108 lbs (49kg)
K43003: 118 lbs (53.5kg)
K43002: 217 lbs (98.4kg)
K43003: 227 lbs (103kg)
K43002: 29.6 Cu. ft.
K43003: 33 Cu. ft.