OXIDATION STABILITY FOR GREASE

OXIDATION STABILITY FOR GREASE

Model Number : EIE-PTGT-139A

As per IP‑142 & ASTM D 942, IS 1448 (P‑94). Consists of Oxidation Oil bath, Oxidation Bombs, Dish Holder, Sample Dishes, Analog pressure gauges, Digital Temperature Controller and Thermometer.

TYPE OF OPERATION
  • WITH PRESSURE GAUGE SYSTEM
  • ELECTRONIC SYSTEM WITH PC SOFTWARE
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Compliance Standards:
ASTM D942, IP 142, IS 1448 (P-94)

Purpose:
This test method determines resistance of lubricating greases to oxidation when stored statically in an oxygen atmosphere in a sealed system at an elevated temperature under conditions of test

Summary of test method:
The sample of grease is oxidized in a pressure vessel heated to 99°C (210°F) and filled with oxygen at 110 psi (758 kPa). Pressure is observed and recorded at stated intervals. The degree of oxidation after a given period of time is determined by the corresponding decrease in oxygen pressure

Brief construction details :
Consists of Oxidation Oil bath, Oxidation Bombs, Dish Holder, Sample Dishes, Pressure Guges, Digital Temperature Controller and Thermometer. 

1) Oil Heating Bath:
  • Double walled Oil Bath/Aluminum Block Heating
  • Exterior body is fabricated from mild steel material, Powder coated in attractive shades
  • Inner chamber is  fabricated from Stainless Steel Material - S.S. - 304 Grade
  • Heavy insulation is provided between inner chamber and exterior body to prevent the Thermal Loss
  • Chamber is fitted with efficient heating element and PT‑100 Sensor to measure the temperature
  • Bath temperature is controlled by Touch Screen HMI & PLC controller.
  • Equipped with an efficient stirrer to maintain uniform temperature throughout the chamber
  • Fitted with a suitable arrangement for holding the Bomb (Pressure Vessel)
  • Temperature control accuracy  :  ±  0.5 °C
  • Temperature display : LCD Display
  • Temperature range : 5 °C above ambient to 150 °C
  • Pressure Indication  : On pressure Gauge
  • Supplied with over temperature protection safety
  • Operates on 230 Volt, 50 Hz, Single Phase, AC Supply
2) Pressure Vessel (Oxidation Bomb):
  • Oxidation vessel with body, cap, closure ring and stem,  constructed from Stainless Steel material
  • Stainless steel material ensures a proper rate of heat transfer.
  • The interior surface is given a smooth finish to facilitate cleaning.
  • Withstands working pressure of 180 psi (1241 kPa) at 99°C (210°F) 
  •  Provided with a lead and gasket for sealing. 
  • Two numbers of rotating pressure vessels are provided.
  • Volume without the dish holder and dishes is 185 ± 6 mL
3) Dish Holer:
  • Made of Stainless Steel S.S. - 304
  • 5 Places (Shelves) in the stand
4) Sample Dishes:
  • Made of borosilicate glass
  • Diameter : 41 mm
  • No of Dishes supplied : 05 Nos
5) Thermometer :
IP 24C/ASTM 22C thermometer having temperature range from 95 to 103 °C graduated in 0.2 °C intervals

6) Pressure gauges for Measurement and Analysis:
Pressure recording mechanism consists of high quality  pressure gauges.  Pressure gauge measures pressure inside Oxidation Bomb with accuracy of better than 0.5psi (3.45kPa) in accordance with ASTM specifications. Range : 0-160psi (0-1100kPa), graduated in 1 psi intervals. Cleaned for oxygen service.  The pressure gauges can be mounted directly on the vessel stem
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