By Dachnial Dan Imansyah
Filter Cart is an integrated oil filtering system or kidney looping system in mobile-based. Oil from the source (this can be mobile equipment) is to be circulated through the kidney loop filter system until the specified cleanliness is achieved.
Main Component
This filter cart equipped with one unit Diaphragm pump with air operated. This pump capable to deliver free flow of 360 liters per minute.
However, due to the fine micron filtration of the filters and the viscosity of the oil, the same flow capacity is not possible. Nevertheless tests while filtering SAE 20w/50 weight oil have shown flow rates up to 35 lpm have been gained. However, it is not advisable to run the unit at maximum capacity for extended lengths of time.
The flow rate will fill an empty 200-liter drum in 5.75 to 6 minutes, and the same time is required for one cycle of the kidney loop. The number of cycles through the kidney loop to achieve specified cleanliness is dependent on the initial condition of the oil and the filtration effectiveness.
Magnetic screen filter
This filter cart is equipped with a Magnetic screen in the pump filtration line. A magnetic screen filter is to help to catch ferrous debris from the oil. Before the magnetic screen filter, the oil will have to go through 3 oil filters with 3 different meshes. First is 15-micron mesh, 10-micron mesh, and the final 5-micron mesh.
Air Regulator and Control Valve
This equipment is completed by 1/2“ Pressure Regulator and Pneumatic Control valve with Pressure Gauge.
Incorporates Sample Access Port. Allows for (in operation) Oil Sampling. Useful to test the quality of oil after the filtration process.
OPERATIONAL
Pre-start starting Checks.
Before starting, please check the following instructions :
- Ensure Pneumatic connections from airlines and Small Filter Cart are securely attached. Unit is supplied with an Air Quick Disconnect Coupler.
- Check inlet and outlet hose and fittings are securely connected.
- Check the filter elements, make sure that they are fit enough into the filter heads.
- Check the suction and delivery lines, make sure all lines are fitted already to the sources. Use proper quick-disconnect couplers for easy operation and to avoid oil spillages.
Operational Continued.
Oil is to be circulated through the kidney loop filter system until the specified cleanliness is achieved. To filter the oil proceeds as follows :
- Set Air Regulator to 30 psi by pulling black control knob down, one click, and rotate clockwise to increase or anti-clockwise to decrease to appropriate pressure to attain desired flow.
- Slowly position the air control ball valve to OPEN position.
- The diaphragm pump should be heard operating.
- Observe the filter restriction indicator on the gauge panel, make sure the needle is not reaching the red indicator 25 psi).
- If the needle is reaching the red indicator then slow down the air pressure by adjusting the air regulator and air control ball valve.
- If the Pump continues is running at a slow speed and the needle is still reaching the red indicator, this indicates the filter element is blocked and requires replacement.
- If the oil is cleaned to specification :
- Switch the Large Filter Cart airline control ball valve to the OFF position.
- Switch the airline source to the CLOSED position.
8. After the process’s done. Make sure all hoses are put into their places to avoid contaminants.
Note :
This Large Oil Filter Cart is built and the property of PT. Fluidcon Jaya and its client PT Trakindo Utama.
The author is one of the designer of Fluidcon Large Oil Filter Cart