Technical support

Drum filter mesh replacement

Filtration mesh of a drum filter shall be replaced, if inlet water contamination level has changed or the mesh was damaged.

For the filtration mesh replacement, please:

1.     power off the pump and gear motor of the drum drive.

2.     remove the bands around the drum by means of tension screws disassembling.

3.     unscrew the nuts of the drum clamping strips and remove it.

4.     remove old filtration mesh and double-sided adhesive tape on metal clamping strips.

5.     stick on a new double-sided adhesive tape.

6.     fix a new filtration mesh from one side with a double-sided adhesive tape on the drum instead of previously installed one and smooth it down.

7.     place the other end of the filtration mesh around the drum, pull it slightly, fix it with a double-sided tape and smooth it.

8.     fit the clamping strips in place and tighten the nuts.

9.     place bands around the drum, tighten them with screws through the openings in the strip.

Drum filter mounting

1.     Check the tightening torque of bolted connections of the filter. If necessary, please set the displaced parts in their original position and tighten the bolted connections.

2.     Place the filter on a flat, solid surface (channel or container bottom), locate it properly and fix with anchor bolts on the bottom.

3.     Seal the gaps between the front wall (in the direction of the filtered liquid flow) of the drum filter and the walls of the channel or opening in the container. Please use rubber, silicone, polymer seals, any waterproof inserts and linings for sealing.

4.     Connect the branch pipe for removing sediment and flushing liquid to the pipeline of the sewer system or septic tank by means of couplings or other faucet joints. Seal the connections with silicone, if necessary.

5.     Connect the inlet of the flushing pump to a source of clean water (a tank with water from a well or municipal water supply system). Connect the outlet to a tee-joint on the injection nozzles pipe. Reinforced polymer hoses or a pipeline made of brazed polypropylene pipes (DN at least 25mm) can be used for the pump connection.

6.     Install the bracket with the liquid level sensor (electrode) on the filter frame above the inlet in the front wall. Fix terminals of the sensor wires: one terminal is attached to the frame through a bolt connection, which fixes the top of the case to the frame; the second one - through the bolted connection fixing the electrode on the bracket. The drum filter is shipped by the manufacturer with a preset sensitivity of the liquid level sensor. If necessary, the sensitivity can be adjusted with the adjusting screw on the level sensor relay installed in the control unit behind the front panel.

7.     Install the control unit in a room with a temperature of 15-30 ° C and normal humidity.

8.     Connect the gear motor, pump, water level sensor to the control unit in accordance with the Installation and Operation Manual of the control unit.

9.     Connect the control unit to a single-phase electrical network. Provide a backup power source in case of interruptions in the main source operation.

10. Immerse the filtration drum into the liquid to 30% of its height and start the drum filter in accordance with the Installation and Operation Manual of the control unit. Set the manual operating mode with automatic injection nozzles switch on (following the sensor signal). Feed the filtered liquid to the drum filter with a gradual increase in its volume to the design (operating) value. Check the drum filter for abnormal noise and vibrations.

When all of the above steps have been performed please switch the operating mode of the drum filter from manual to automatic one following the Installation and Operation Manual of the control unit.