• Mesure des propriétés d'échappement d'air

Mesure des propriétés d'échappement d'air

ASTM D3427; IP 313; ISO 9120; DIN 51381; NF E 48-614


The ability of a turbine, hydraulic, or lubricating oil to separate entrained air is a key performance characteristic in applications where agitation causes a dispersion of air bubbles in the oil.

To determine air release properties, the sample is heated to a specified test temperature and blown with compressed air. After the air flow is stopped, the time required for the air entrained in the oil to reduce in volume to 0.2% is the air bubble separation time.

Features

  • Conforms to ASTM D3427, IP 313 and related specifications
  • High accuracy temperature control with digital setpoint and display
  • Digital control panel leads user from start to finish of test operation
  • Automatic calculation of final sample density for determination of air release value
  • Redundant overtemperature protection circuitry assures safe operation


The Koehler Air Release Value Apparatus consists of a test vessel and air flow control equipment for delivering heated air at the specified flow rate to a lubricating oil sample maintained at constant temperature. Microprocessor based control panel guides user from start to finish of test operation and provides density calculation and timing operation for measuring the air release value of the test sample. The system includes drying oven for warming test oil at temperatures of up to 100°C; circulating bath with digital temperature controller and air bath for sinker; compressed air heater with digital temperature controller, overtemperature and overpressure protection circuitry; pressure gauge; thermometer. Optional Windows® software automatically measures the time for air release.


Included Accessories

  • ASTM 12C Thermometer
  • Sinkers, 5mL and 10mL
  • Drying oven
  • Pressure gauge
  • Circulating Bath
  • Air Bath for Sinker
  • Balance
  • Platinum Wire
  • Jacketed Test Vessel

Standards

ASTM D3427; IP 313; ISO 9120; DIN 51381; NF E 48-614

  • Temperature Range: ambient to 75°C (167°F)
  • Electrical Requirements: 115V 60Hz, 3.0A
  • Dimensions : LxWxH,in.(cm): 24x28x381⁄4 (61x71x97)
  • Net Weight: 165 lbs (74.8 kg)
  • Shipping Information: Dimensions: 34x29x37 in. (86.4x73.7x94 cm)
  • Shipping Weight: 209 lbs (94.8 kg)