CDL Centrifugal Pump

The CDLF vertical stainless steel light-duty multistage pump is manufactured with international advanced technology. Its major advantage lies in the adoption of an advanced hydraulic model design, which ensures high efficiency and energy conservation. The internal impeller, pump casing and main components are formed by stainless steel stamping, with particularly smooth flow channels. The bearing bush and shaft sleeve are made of hard alloy, which guarantees an extremely long service life and avoids secondary pollution. The shaft seal adopts a wear-resistant mechanical seal, ensuring no leakage. The motor features an aluminum casing, imported bearings, and an insulation class of F. The pump operates smoothly with low noise. The entire machine is reliable in quality, aesthetically pleasing in appearance, compact in size, light in weight, and convenient for transportation and installation. It is an ideal green, environmentally friendly and energy-saving pump.

1. Advanced manufacturing processes have significantly enhanced the performance and service life of the pump.
2. Due to the adoption of mechanical seals made of hard alloy and fluororubber for the shaft seal, the reliability of the pump operation and the temperature of the conveyed medium can be enhanced.
Due to the adoption of mechanical seals made of hard alloy and fluororubber for the shaft seal, the reliability of the pump operation and the temperature of the conveyed medium can be enhanced.3.
3. The flow-through parts of the pump are made by stamping and welding stainless steel plates, which enables the pump to be suitable for slightly corrosive media.
The flow-through parts of the pump are made by stamping and welding stainless steel plates, which enables the pump to be suitable for slightly corrosive media.
4. The overall structure is compact, with small volume, light weight, low noise, remarkable energy-saving effect and convenient maintenance.
The overall structure is compact, with a small volume, light weight, low noise, remarkable energy-saving effect and convenient maintenance.
5. The water inlet and outlet of the pump are on the same horizontal line on the pump base and can be directly used in the pipeline.
The water inlet and outlet of the pump are on the same horizontal line on the pump base, which can be directly used in the pipeline.
6. Standard motors are adopted, allowing users to conveniently equip motors as needed.
Standard motors are adopted, allowing users to conveniently equip motors as needed.
7. According to the user's needs, an intelligent protector can be equipped to effectively protect the pump from dry running, phase loss, overload and other conditions. According to the user's needs, an intelligent protector can be equipped to effectively protect the pump from dry running, phase loss, overload and other conditions.

1. A thin, clean, non-flammable and non-explosive medium without solid particles or fibers.
2. Such as mineral water, softened water, pure water, refined oil and other light chemical media.
3. The main material of the pump is stainless steel, which can be used for pumping mild corrosive media.
Water supply: Water treatment and distribution at the water plant, water supply to different areas within the water plant, booster pumping at the main pipes, and booster pumping for high-rise buildings.
Industrial pressurization: Process water system, cleaning system, high-pressure flushing system, fire protection system.
Industrial liquid transportation: Cooling and air conditioning systems, boiler feedwater and condensation systems, machine tool accessories, transportation of acidic and alkaline media.
Water treatment: Ultrafiltration system, reverse osmosis system, distillation system, separator and swimming pool water treatment system.
Irrigation: Field irrigation, sprinkler irrigation, drip irrigation.

1. The CDLF type vertical stainless steel multi-stage centrifugal pump should be installed vertically on the ground. During installation, ensure that sufficient cold air can enter the cooling fan of the motor. The arrow at the bottom of the pump indicates the direction of fluid flow through the pump.
2. To minimize the noise that the pump may generate, it is advisable to install anti-vibration fixing devices on both sides of the pump and between the foundation and the pump body. The connecting flanges, gaskets, bolts, and PJE couplings are provided as accessories and must be ordered separately. If cleaning, repair, or replacement of the pump is necessary, isolation valves should be installed on both sides of the pump to prevent system drainage. When installing pipes for multi-stage centrifugal pumps, it is necessary to avoid air blockage, especially on the suction side of the pump. The pipes should be installed in such a way that any stretching caused by temperature changes will not affect the pump. If the pump is installed on a long pipe, it should be properly supported at the front and back as indicated.
3. If multi-stage centrifugal pumps are at risk of being clogged by stones, leaves, small branches, etc., measures should be taken to prevent such incidents. Installing a filter screen at the suction port will suffice.
4. In some installation scenarios, the drainage pipes are already installed horizontally or inclined downward by the pump. In such cases, the water in the pump will either flow out or must do so at some intervals. The pump should be protected to prevent the impeller from running idle. A section of pipe with a vacuum valve installed near the pump can avoid this situation. The high point of the ring pipe should be at least at the same level as the connection plate of the pump's motor. In this way, the drainage pipe can drain water from the pump independently, and vice versa.
5. When the drain valve is closed, the pump is prohibited from running because this would cause an increase in the temperature/vapor formation inside the pump, thereby leading to pump damage. If there is any danger in allowing the pump to run when the drain valve is closed, a bypass or discharge pipe should be connected to the outlet. This ensures that a small amount of liquid flows through the pump. The discharge pipe, for example, can be connected to a water tank.
6. Small quantities of QDL and QDLF light multi-stage pumps.