AIR RELEASE VALUE TEST APARATUS OF LUBRICATING OIL - (ASTM D3427)

Compliance with following International Standards:

ASTM D3427, IP 313 and IS : 1448 (P‑102)

Purpose:

The ability of 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.

Construction Details :

The entire assembly consists of following parts and accessories to form the complete test apparatus.

1. The main unit comprises of an air heater, fine control pressure regulator (Flow meter), pressure gauge, and mounting clip for the test vessel.
2. Steel wire for sinker suspension
3. Moisture trap
4. Pressure gauge specifications : 0.35KPa with divisions at least every 2KPa and an accuracy of 1.5KPa with needle valve
5. Manual lifting in slider area to move test vessel from air source to sinker facility
6. Integrated touch screen programmable controller with data logging facility
7. Integrated Digital automated density balance with stand and sinker to directly measure the density value
8. Integrated Digital constant temperature circulating bath with circulating pump of flow rate 10 LPM
9. Automatic calculation of final sample density for determination of air release value

Technical Specifications of Density Balance:

• Capacity               : 220 grams
• Readability             : 0.1 mg
• Repeatability          : 0.2 mg
• Linearity                : 0.2 mg
• Pan size                 : 90 diameter
• Response time (sec) : <5‑8
• Calibration             : Auto calibration
• Supplied with under weighing hook and steel wire for sinker suspension

Technical Specifications of circulating waterbath:

• Excellent control accuracy and uniformity due to its modular and innovative design.
• Outer chamber is made from Galvanized Sheet ‑ which is powder coated in attractive shades
• Inner chamber is fabricated from S.S.304 ‑ Mirror polished material
• Fully argon welded design
• 50mm thick Glass wool Insulation is provided between the inner chamber and exterior body to prevent the direct thermal loss
• Specially designed immersion Heater for heating within the set point temperature
• ISI marked immersion Heater ‑ U shaped
• Built ‑ in boost for initial heating
• Temperature Range        : Ambient + 5 °C to 120 °C
• Temperature Accuracy   : ± 0.1 °C at 20 °C, 50 °C & 75 °C
• Temperature Uniformity : ± 0.2 °C at 37 °C
• Overall size                     : 57 cm L x 30 cm W x 22 cm D
• Working size                   : 35 cm L x 30 cm W x 17.5 cm D
• Bath Volume                   : 18 Liters
• Rating                              : 1.5 KW
• Stirring is achieved by an efficient, continuously rated, self cooling motor with SS shaft and propeller of anti ‑ corrosive Material,
•  Stirrer is fitted on side of the bath allowing obstruction free usage of working area.
• Circulatory Pump to circulate the bath water to external apparatus
• Entire instrument Works on 230 Volt, 50 Hz, Single phase, AC Supply