Application scope
The CDL/CDLF series pumps are a versatile product, suitable for various media ranging from tap water to industrial liquids, and capable of adapting to different temperature, flow, and pressure ranges. The CDL is suitable for non-corrosive liquids, while the CDLF is suitable for slightly corrosive liquids.
Water Supply:
Water Plant Filtration and Distribution
Zone Water Supply at Water Plant
Main Pipe Pressurization
High-rise Building Pressurization
Industrial Pressurization: Process water system
Cleaning system
High-pressure flushing system
Fire protection system
Industrial liquid transportation:
Cooling and air conditioning systemBoiler feed water and condensation system
Machine tool accessories
Acid and alkali
Water treatment:
Ultrafiltration system
Reverse osmosis system
Distillation system
Separator separation Swimming pool
Irrigation:
Farmland irrigation
Sprinkler irrigation
Drip irrigation
Daily maintenance
During operation, impurities in the water may enter the pump and accumulate excessively, which will affect the performance of the pump. You can regularly open the sewage outlet of the pump body to discharge the debris and ensure the cleanliness inside the pump.The CDL vertical multi-stage centrifugal pump produced by Shanghai Yijia Pump Industry, with its wide range of applications and reliable performance, plays an important role in various fields. Through correct daily maintenance, the service life of the pump can be extended, the working efficiency can be improved, and greater economic benefits can be brought to users. During use, users should attach importance to maintenance work and ensure that the pump is always in a good operating condition.
cdlf High Building Stainless Steel Vertical Multistage Centrifugal Water Pump To ensure the long-term stable operation of the CDL vertical multi-stage centrifugal pump, daily maintenance is of vital importance. The first step is the visual inspection, which involves regularly checking whether the pump body has any damage or deformation. If cracks or obvious wear are found on the pump body, it should be repaired or replaced promptly to avoid major failures caused by minor issues. Check if the connecting bolts are loose to ensure the pump body is firmly fixed.
Secondly, the maintenance of the bearings is required. The bearings are one of the key components of the pump, and good lubrication is the key to ensuring their normal operation. Regularly check the lubrication condition of the bearings and add or replace the lubricating oil as per the regulations. If abnormal noises or overheating are detected from the bearings, it may be due to insufficient lubrication or severe bearing wear, and timely handling is necessary.
The function of the sealing piece is to prevent liquid leakage and ensure the normal operation of the pump. It is necessary to regularly check the wear condition of the sealing piece. If there is any damage, it should be replaced in time. Pay attention to whether the installation of the sealing piece is correct to ensure a good sealing effect.
In addition, it is necessary to regularly clean the debris inside the pump.
Product model parameters
| Model numberCDL(F) | Power kw |
Head m |
Traffic m³/h |
Model numberCDL(F) | Power kw |
Head m |
Traffic m³/h |
|
| CDL2-20 | 0.37 | 15 | 2 | CDL8-20 | 0.75 | 18 | 8 | |
| CDL2-30 | 0.37 | 22 | CDL8-30 | 1.1 | 27 | |||
| CDL2-40 | 0.55 | 30 | CDL8-40 | 1.5 | 36 | |||
| CDL2-50 | 0.55 | 37 | CDL8-50 | 2.2 | 45 | |||
| CDL2-60 | 0.75 | 45 | CDL8-60 | 2.2 | 54 | |||
| CDL2-70 | 0.75 | 52 | CDL8-80 | 3 | 73 | |||
| CDL2-90 | 1.1 | 67 | CDL8-100 | 4 | 92 | |||
| CDL2-110 | 1.1 | 74 | CDL8-120 | 4 | 111 | |||
| CDL2-130 | 1.5 | 98 | CDL8-140 | 5.5 | 130 | |||
| CDL2-150 | 1.5 | 112 | CDL8-160 | 5.5 | 148 | |||
| CDL2-180 | 2.2 | 136 | CDL8-180 | 7.5 | 167 | |||
| CDL2-220 | 2.2 | 165 | CDL8-200 | 7.5 | 186 | |||
| CDL2-260 | 3 | 198 | CDL12-20 | 1.5 | 20 | 12 | ||
| CDL4-20 | 0.37 | 15 | 4 | CDL12-30 | 2.2 | 30 | ||
| CDL4-30 | 0.55 | 24 | CDL12-40 | 3 | 40 | |||
| CDL4-40 | 0.75 | 32 | CDL12-50 | 3 | 50 | |||
| CDL4-50 | 1.1 | 40 | CDL12-60 | 4 | 60 | |||
| CDL4-60 | 1.1 | 48 | CDL12-70 | 5.5 | 70 | |||
| CDL4-70 | 1.5 | 56 | CDL12-80 | 5.5 | 80 | |||
| CDL4-80 | 1.5 | 64 | CDL12-90 | 5.5 | 91 | |||
| CDL4-100 | 2.2 | 81 | CDL12-100 | 7.5 | 101 | |||
| CDL4-120 | 2.2 | 94 | CDL12-120 | 7.5 | 121 | |||
| CDL4-140 | 3 | 113 | CDL12-140 | 11 | 141 | |||
| CDL4-160 | 3 | 129 | CDL12-160 | 11 | 162 | |||
| CDL4-190 | 4 | 153 | CDL12-180 | 11 | 183 | |||
| CDL4-220 | 4 | 178 |
FAQ
01.No water supply failure
- Air trapped in the suction pipe or the pump: Before starting the pump, if the suction pipe or the pump is not completely filled with liquid, air will be present, causing the pump to fail to draw water properly.
Suction pipe blockage: Debris, sediment, etc. may clog the suction pipe, hindering the intake of liquid.
Motor reversal: Incorrect wiring of the motor may cause the motor to reverse, making the impeller of the pump rotate in the opposite direction to the designed direction and unable to generate sufficient head.
Impeller damage: Long-term use or impact by foreign objects may cause wear or fracture of the impeller, affecting the drainage capacity of the pump. Solution
Remove air: Open the exhaust valve to allow the liquid to fill the suction pipe and the pump body, then discharge the air inside.
Clean the suction pipe: Turn off the pump, disassemble the suction pipe, and remove any debris or obstructions from it.
Adjust motor wiring: Check the motor wiring, correct any incorrect connections, and ensure the motor rotates in the forward direction.
Replace the impeller: If the impeller is severely damaged, a new one should be replaced promptly.
02.Insufficient traffic fault
Insufficient pump speed: Low power supply voltage, loose belt, etc. may cause the pump speed to decrease, thereby reducing the flow rate.
Wear of the impeller: Wear of the impeller will reduce the pump's efficiency and flow rate.
Excessive pipeline resistance: Long pipelines, small pipe diameters, too many elbows, etc. will increase pipeline resistance, affecting the flow of the liquid and resulting in insufficient flow.
Wear of the sealing ring: Wear of the sealing ring will increase leakage in the pump, reducing the actual flow rate of the pump. Solution
Check the power supply and belt: Verify if the power voltage is normal, adjust the tension of the belt to ensure that the pump's speed reaches the rated value.
Replace the impeller: When the impeller wears to a certain extent, it should be replaced with a new one in time.
Optimize the piping system: Select the pipe diameter and length reasonably, reduce the number of bends, and lower the pipeline resistance.
Replace the sealing ring: If the sealing ring is severely worn, a new one should be replaced to reduce leakage inside the pump.
03.Insufficient head failure
Too small impeller diameter: The selected impeller diameter does not meet the design requirements of the pump, which will result in insufficient pump head.
Insufficient speed: Similar to the cause of insufficient flow rate, insufficient speed will also reduce the pump head.
High viscosity of the liquid: If the liquid being transported has a high viscosity, it will increase the resistance of the pump and reduce the pump head.
Air in the pump: The presence of air in the pump will affect the normal transportation of the liquid, leading to insufficient pump head. Solution
Replace the appropriate impeller: According to the design requirements of the pump, replace the impeller with the appropriate diameter.
Increase the speed: Check the power supply and transmission device to ensure that the pump's speed reaches the rated value.
Reduce the liquid viscosity: If the liquid viscosity is too high, heating or other methods can be used to lower the viscosity of the liquid.
Remove air: Follow the method of removing air to discharge the air inside the pump.
04.Excessive vibration and noise faults
Installation of pump and motor is not secure: Loose anchor bolts of the pump and motor, or uneven installation conditions can cause vibration and noise during the operation of the pump.
Unbalanced impeller: Imbalance during the manufacturing or installation of the impeller will cause centrifugal force when the pump rotates, resulting in vibration and noise.
Damaged bearings: Wear of bearings or poor lubrication can lead to bearing damage, causing vibration and noise.
Pipeline resonance: When the natural frequency of the pipeline is close to the vibration frequency of the pump, resonance will occur, intensifying the vibration and noise. Solution
05.Motor overheating fault
Overload of the motor: If the pump's flow rate is too high, the head is too great, or the viscosity of the liquid is too high, the motor load will increase, leading to overheating of the motor.
Poor ventilation: If the cooling fan of the motor is damaged or the ventilation ports are blocked, it will affect the motor's heat dissipation, causing the motor temperature to rise.
Short circuit in the motor winding: If the motor winding gets damp or its insulation is damaged, it may cause a short circuit, generating a large amount of heat. Solution
Adjust the operating parameters of the pump: Based on the actual situation, adjust the flow rate and head of the pump to avoid motor overload.
Clean the ventilation ports and replace the fans: Remove debris from the motor ventilation ports, check if the cooling fans are functioning properly, and replace any damaged ones in time.
Inspect and repair the motor windings: If the motor windings are short-circuited, the motor needs to be inspected and repaired or the damaged windings need to be replaced.
jovidia Pump One-stop Expert
Our address
Baoding Cloud Center, Hebei, China
Phone Number
+86 150 7625 8596
admin@jovidiapump.com
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