Pump installation

Blindly starting the motor is strictly prohibited. Only after confirming the correct direction of the motor can the coupling be installed and cancelled.

1. Remove the grease and dirt from the base and place it on the foundation.

2. Insert the anchor bolts into the foundation holes of the base, attach a nut above and below the base holes of the anchor bolts, and place a support rail or wedge iron (with a support height of 50 millimeters) under the base to align the pump inlet and suction pipe flanges.

3. Use a spirit level to roughly adjust the levelness of the pump in both vertical and horizontal directions on the inlet and outlet flanges.

4. For the first grouting, pay attention to ensuring that the anchor bolts are vertical and do not touch the equipment.

5. After the concrete is completely dry and solidified, tighten the upper and lower nuts of the base evenly, and then perform the second grouting.

6. Remove the coupling cover and check the gap between the couplings. There should be a certain gap between the couplings, usually 4 millimeters. Check if the pump shaft and motor shaft are concentric, and adjust them with a thin gasket. The difference between the outer circle of the coupling should not exceed 0.1 millimeters, and the maximum and minimum difference between the end face clearance should not exceed 0.3 millimeters.

7. The suction pipe diameter should be the same as or slightly larger than the inlet diameter of the pump, so as to avoid cavitation of the pump and prevent the slurry from depositing in the pipeline.

8. To minimize the deposition of slurry in the pipeline and snail shell, a discharge valve (the diameter of the valve depends on the particle size of the medium) should be installed below the parallel pipe section between the suction pipeline and each gate for discharge after parking.

9. For the convenience of pump maintenance, an inlet valve should be installed with a diameter equal to the suction pipe diameter of the pump. Expansion joints should be installed between the suction inlet and suction pipe of the pump for easy disassembly and assembly.

10. The discharge pipe diameter should be the same as or slightly larger than the outlet diameter of the pump.

11. The pipeline should have its own support, and the weight of the pipeline should not be added to the pump to avoid damaging it.

12. When installing the pump position, try to keep the pump as low as possible below the liquid level to achieve the best performance.

Installation Guide for ZJE Filter Press Feed Pump

Pump usage, maintenance, and upkeep

① Start up
1. Check if the lubricating oil level is at half of the oil level gauge (the lubricating oil has been added before leaving the factory)
2. If it is a double end mechanical seal (water tank structure), clean water (or engine oil) should be injected into the water tank to the specified water level first, and then the water tank should be sealed to circulate the water as required.
3. Start the motor and ensure the correct direction of rotation before installing the coupling pin. Do not blindly start the motor to prevent the impeller from falling off.
4. Open the inlet pipeline valve, and after the water pump is completely filled with water (for the sealed pump, check whether the sealed water tank or external water injection is normal), connect the power supply, and gradually open the outlet pipeline valve when the pump reaches normal speed. It is strictly prohibited to turn on all pumps before starting them.
② Stop it
Turn off the motor. If the pump has been out of service for a long time, the night body inside the pump should be drained. To prevent the pump from freezing in winter.
③ Repair and maintenance
1. Regularly replace with new oil, with a cycle of 2-3 months.
2. When sealing the packing, regularly check the leakage of the shaft seal water. If the leakage is severe, adjust the packing gland or replace the new packing in a timely manner to prevent the external water from leaking in droplets.
3. When using a double end mechanical seal, regularly check the water level and turbidity of the water tank, and add water or replace it with clean water in a timely manner.
4. If the pump is not used for a long time in winter, the inlet valve should be closed, and the pump should be started and run idle for a few minutes to remove residual slurry from the pump to avoid freezing and cracking of the pump body.

Material configuration

Sealing form

According to different job requirements and the working conditions of the pumped medium, different sealing forms can be selected

Packing seal double end mechanical seal

Containerized single mechanical seal

Pump structure diagram

Disassembly and assembly of ZJE filter press feed pump

Disassembly of pump and assembly of pump

Loosen the flange bolts of pump body 1 and outlet pump body I, and remove the bent pipe pump. The assembly and disassembly sequence is basically opposite,
2. Loosen the pull rod nut and remove the pump body II. The disassembly ring is installed in place after installing the water blocking plate
3. Loosen the disassembly ring (loosen the three hexagon socket bolts on the disassembly ring to separate it)
Remove impeller II, pump body I, impeller I, and guard plate in sequence
From the direction of the pump, rotate impeller I counterclockwise to remove it
Loosen the connecting bolts between the cover plate and the inlet pump body, remove the fish plate, auxiliary impeller, and spacer sleeve
Loosen the connecting nut between the inlet pump body and the bracket, and remove the inlet pump body (including the seal)
Disassembly and assembly of bearing body components

Disassembly of bearing body components

1. Loosen the round nut, remove the bearing cover, bearing sleeve, and oil seal
2. Loosen the bolts between the front cover of the bearing and the bearing body, and remove the water blocking plate and the front cover of the bearing
3. Pull out the shaft from the back cover direction and make diagonal contact with the bearing and cylindrical roller bearing,
Assembly of bearing body components
The installation sequence is opposite to the disassembly sequence
Dismantling and assembly of packing seals
Dismantling of packing seal:
Loosen the nut, remove the packing gland, packing, and shaft sleeve
Assembly of packing seal:
Reverse the disassembly sequence

Disassembly and assembly of containerized single mechanical seals

Dismantling of mechanical seals for container bills

1. Loosen the fastening bolts between the machine seal and the shaft sleeve
2. Loosen the nuts of the gland and the inlet pump body, and extract the machine seal
Assembly of mechanical seals for container bills
Reverse the disassembly sequence

Dismantling of dual mechanical seals

1. Loosen the nuts of the water tank and machine seal cover
2. Loosen the nuts of the machine seal box and machine seal cover
3. Loosen the fastening bolts of the dynamic ring and shaft sleeve, and remove the dynamic ring
4. Loosen the machine seal box and the nut of the golden water pump body, and remove the machine seal box (along with the static ring)

Cause and solution of malfunction

Main technical parameters of direct drive