ASTM D3427 PDF

More D If the residence time in the reservoir is too short to allow the air bubbles to rise to the oil surface, a mixture of air and oil will circulate through the lubricating oil system. This may result in an inability to maintain oil pressure particularly with centrifugal pumps , incomplete oil films in bearings and gears, and poor hydraulic system performance or failure. The significance of this test method has not been fully established.

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The ideal test to determine the air release properties of petroleum oils. This innovative instrument is commonly used to determine the ability of a turbine, hydraulic or lubricating oil to separate entrained air. This is a key performance characteristic in applications where agitation causes a dispersion of air bubbles in the oil.

The test method In order to discern air release properties, the sample is heated to a specified test temperature and blown with compressed air. After the air flow is ceased, the time required for the air entrained in the oil to reduce in volume to 0. Key features Includes an integrated touch screen control panel, which guides the user from start to finish of the test operation, and provides density calculations and timing operations for measuring the air release value of the test sample. Included is an integrated circulating bath and balance, an air bath for the sinker, an automatic lift system that moves the test vessel from air source to balance sinker, and also automatically measures the time for air release for maximum convenience and reliability.

Other state-of-the-art features include an integrated circulation bath with water level indicator, integrated balance, air tube security clamp mechanism and automatic jacketed test vessel draining. Safety features include compressed air heater overtemperature and overpressure protection circuitry. Included accessories.

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The ideal test to determine the air release properties of petroleum oils.

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