'determination of air release value of lubricating oil'

ASTM D-3427, IP 313 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

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Leakage Tendencies of Wheel Bearing Grease tester, As per ASTM D 1263 This test method for Grease testing determines the tendency of grease to separate oil or grease under prescribed laboratory operating conditions. The test is performed at a high temperature in a modified automotive spindle-hub assembly rotated at the speed of 660 rpm. Any leakage of oil or grease during the test period is collected and weighed. The equipment is made of stainless steel oven with forced air circulation.The temperature is controlled by PID Controller. The accessories included are Wheel bearing spindle, front wheel hub, driving belt pulley, grease leakage collector, front roller bearing, rear roller bearing.

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As per ASTM D4217 , DIN 55990- P8 Gel Time Apparatus is used for determination gel time of powder coating or sample at which time it turns into gel on a polished metal surface at specific temperature. Gel time is the time at which the sample turns into gel from solid and it is not able to be used further. Gel time apparatus is made from non corrosive material. The top plate is made up of aluminium and it is provided with a sensor. It has a long lasting heating coil, temperature controller and digital timer display. It is widely used in plastic industries, powder coating.

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Abel Flash Point Apparatus. Electrically operated having Thermostatic control As per IP 33, 170 & IS 1448 (PT I) For Determination of flash point of petroleum products and mixture having flash point below 49°C ( 120°F ) The apparatus consists of Brass Cup fitted with test flame arrangement. Stirrer is placed for maual stirring during testing. The Outer Jacket of the water bath is fitted with a stand. Heating is by 500 watts coil heater fitted to the stand. Heating is controlled by Energy Regulator. Country of Origin : INDIA

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WATER SPRAY OFF TESTER As per ASTM D 4049 Water spray off tester evaluates the ability of a lubricating grease to adhere to a metal surface when subjected to a direct water spray under controlled conditions. The percentage of grease sprayed off a stainless steel test panel after a specified period is determined by weight. - It Conforms to ASTM D4049 specifications The equipment including spray chamber, delivery system and constant temperature reservoir. It Sprays water at the specified rate and temperature on a test panel coated with sample grease. To test for water spray resistance, fill reservoir with 8L of tap water and set the temperature comtroller at test temperature. Circulate the water through the system to attain temperature equilibrium and insert the coated test panel in the spray chamber. Adjust water spray to 40psi (276kPa) and continue for 5 minutes. Water spray system includes 1.3hp positive displacement pump; spray nozzle with snubber fitting: 0-60psi pressure gauge; bypass valve; shut-off and drain valves; and flexible high pressure water lines. Hinged acrylic spray chamber cover is recessed into the chamber housing to insure watertight operation. Standardized grease application fixture coats test panel with the required thickness of sample grease. Uses tap water; does not require water hook-up. The system includes: Stainless steel test panel Grease application fixture Thermometer holders Pressure gauge Salient feature – Dital Temperature Controller Unit for temperature accuracy 0.03°C Temperature range : 35.00 to 150.0°C Power supply: 230 Volt AC. 1 phase, 50Hz Country of Origin : India

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