Product Overview
The DCC - M series precision multistage canned pumps are vertical in - line multistage canned pumps. They feature high efficiency, energy - saving, low noise, low vibration, long service life, a compact structure, small size, and an aesthetically pleasing appearance.
Product Features
- The pump and motor are designed in an integrated manner. A canned motor and an energy - efficient impeller - diffuser stacked structure scheme are adopted, making the pump and motor an absolutely sealed unit, ensuring high efficiency, no leakage, and maintenance - free operation.
- The pump selects an efficient hydraulic model and adopts CFD optimization design. The impeller and diffuser are made using stainless - steel stamping and laser - welding technology, with a smooth surface, which improves the pump's hydraulic efficiency and cavitation performance.
- The finite - element analysis method is used for strength calculation, making the pump operate more reliably and durably and extending its service life.
- The outer surface of the motor is decorated with polished stainless - steel pipes. The junction box is arranged on top of the motor. The canned motor cooling adopts an external - circulation form with a modular structure, making it easy to disassemble for inspection and maintenance.
- The pump part adopts a hydraulic balance disc structure, which automatically balances the axial force, resulting in almost no axial load during operation.
- The bearings can be made of SiC or graphite materials, and their installation dimensions are interchangeable.
- There is only a static seal without a mechanical seal. The motor housing adopts a welded structure, achieving complete leak - free operation.
- The motor bearings are cooled and lubricated by the self - conveyed medium circulation, eliminating the need for oiling.
- The motor is cooled by the self - conveyed medium circulation liquid instead of a fan, and a hydrodynamic bearing is used, resulting in smooth operation, low vibration, and low noise.
Product Applications
- Water Supply: High - rise building pressurization, water plant filtration and transportation, water plant zonal water delivery, main pipe pressurization; Industrial Pressurization: Process water systems, cleaning systems, high - pressure flushing systems, fire - fighting systems.
- Industrial Liquid Transportation: Cooling and air - conditioning systems, boiler feed - water and condensation systems, machine - tool matching; Water Treatment: Ultrafiltration systems, distillation systems, separators.
- Conveyed Medium: Clean water or other media with physical and chemical properties similar to clean water, with a temperature range of -15°C - 95°C. The temperature of the conveyed medium shall not be higher than the specified maximum temperature of the conveyed medium for the motor.
Advanced Performance
- The product development utilizes the latest achievements in hydraulic research. Through the three - dimensional design theory, model optimization design, and dynamic characteristic analysis method of pumps, it maximizes the improvement of pump efficiency, broadens the high - efficiency area of the pump, and reduces pump noise.
- The impeller and diffuser adopt stainless - steel stamping and laser - welding technology. This impeller has obtained a utility model patent issued by the National Intellectual Property Administration, with the patent number ZL 2013 2 0534632.7.
- A canned motor is adopted, and an integrated pump - motor design scheme is implemented, making the pump and motor a sealed unit. This eliminates the wear - prone and expensive mechanical seal, truly achieving complete leak - free operation of the pump. It not only avoids the waste of water resources but also keeps the pump room clean and tidy, greatly improving the working environment of the pump room.
- An efficient electromagnetic model for the canned motor is selected. Through computer simulation technology, continuous optimization is carried out to reach the optimal design values. High - quality and low - consumption silicon steel sheets and electromagnetic wires are used. The power factor, efficiency, electromagnetic noise and other indicators of the motor are all higher than the industry standards.
- The pump and motor adopt an overall modular design, making the installation and maintenance of the pump more convenient. The stator and rotor of the motor are completely welded with high - quality stainless - steel shielding sleeves, completely isolating the stator winding and rotor core from the conveyed medium, so they will not be eroded by the medium.
- The motor rotor is individually balanced at G1.0 dynamic balance level. All rotating parts of the pump, including the impeller, shaft sleeve, and thrust plate, are then balanced as a whole at G1.0 dynamic balance level, further reducing vibration and noise for smooth operation.
- Each pump model is adjusted through an automatic balance structure and axial thrust test system, keeping the rotor in a suspended state during operation to reduce the axial force on the bearing.
- With the adoption of a canned motor, one of the main noise sources of the pump, the motor cooling fan, is eliminated. Meanwhile, the space around all rotating parts such as the rotor and bearing is filled with water, and the sound generated is further reduced by the isolation of water.
- The electro - pump components adopt the "cathodic electrophoretic coating" process, which greatly improves the corrosion resistance of pump components and effectively extends the service life of the pump.
- The hydraulic model of this series of products is independently developed and manufactured by our company, featuring a wide high - efficiency area and high efficiency. Compared with GB/T 13007 Efficiency of Centrifugal Pumps, the overall efficiency is increased by 3 - 8%. The introduction of this series of products is the best choice to replace imported products.
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