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Horizontal Multistage PumpS CUC2-20 50HZ
The water pump uses a brushless motor to support continuous operation. Over 24 hours. It is the gospel of people who need to use water for a long time. The flow of 5.5GPM provides high volume water flow with reduced pump cycling and smooth flow. Self-Priming up to 9.8 vertical feet, lift to 131 feet. The flow of water makes it perfect to use in various settings.
Equipped with an on-demand pressure switch which turns it on immediately when the faucet is on. It is set to 55PSI. Your safe water source from high flow faucet and hydrant pressure
The pump provides a high flow output with a max speed of 2,800 RPM. A flow rate of 5.5 GPM allows for fast filling and easy washing when gravity feed is not an option. The pressure switch provides a reliable on demand feature designed to initiate proper flow when the faucet is turned on at 55 PSI.
Product parameters
| 50Hz | ||||||||
|---|---|---|---|---|---|---|---|---|
| Model | Driving motor P2(KW) | Q (m3/h) | 1.0 | 1.5 | 2.0 | 2.5 | 3 | 3.5 |
| CUC2-20 | 0.37 | H(m) | 18 | 16 | 14 | 13 | 11 | 10 |
About this item
Brushless Motor
The water pump uses a brushless motor to support continuous operation. Over 24 hours. It is the gospel of people who need to use water for a long time.
Flow of 5.5GPM
The water pump provides high volume water flow with reduced pump cycling and smooth flow. Self-Priming up to 9.8 vertical feet, lift to 131 feet. The flow of water makes it perfect to use in various settings.
On-Demand Pressure Switch
Upgrade waterproof protection. Equipped with an on-demand pressure switch which turns it on immediately when the faucet is on. It is set to 55PSI.
Multiple Application
Great for use in the home water system. It is also a great partner for camping, sprayer, garden sprinkler, faucet, and agricultural irrigation as you like. The pump is super quiet, thermally protected, and can run dry without damage.
Our Customer Service
Commitment to providing a 2-year warranty for all WATER PUMP. If for any reason you are not satisfied contact us immediately via the order. We have a strong customer service team working for it.
Attention
- Please connect all parts closely to avoid leakage or combine seal tape with our RV Pump Strainer to better prevent leaks on pipes and plumbing.
- To avoid leakage to the pump rotor in case of some product failure, the correct operation is to put the pump head down or flat during when installation.
- The built-in pressure switch is subject to the outlet pressure to automatically turn on or off.
When the outlet pressure exceeds 45psi, the pump will automatically turn off itself.
- We have a water pumping test for each product to strictly ensure that the quality is qualified. The partial remaining water drops are normal and do not affect the use.
- Thermal overload and ignition protection( temperatures above 70℃/ 158℉ temporarily stop working ), recommend turning off the power and waiting for the temperature to drop before coming into service again.
Generation and harm of axial force
During the normal operation of the water pump, its main shaft will produce axial force. Due to the fluid flow in the pump cavity, the dynamic reaction force will inevitably be generated on the main shaft, so the axial force is inevitable when the pump works. Under the action of axial force, the rotor produces axial displacement, causing mutual grinding and collision between the dynamic and static parts, resulting in serious damage to the water pump. The existence of axial force will make the pump unable to run smoothly for a long time, reduce its service life and overall performance, and even endanger the safety of operators in serious cases. Therefore, balancing the axial force of the water pump is the key to improving the performance of the main shaft of the water pump, to improve the overall performance and safety of the water pump.
In addition to the above inevitable factors causing the axial force to the pump rotor, other unreasonable factors will also cause axial force, mainly including the following:
When the pump is in normal operation, the pressure at the suction inlet of the impeller is P1, and the pressure at the back of the impeller is P2, and p2>p1. Therefore, a thrust F1 will be generated along the axial direction of the pump.
The dynamic reaction force F2 is generated by the change of flow direction after the liquid flows through the impeller. In multi-stage centrifugal pumps, fluid usually flows into the impeller from the axial direction and flows out from the radial direction. The change of flow direction is due to the force of the impeller, so the liquid also reacts to give the impeller a force of equal size and opposite direction. Axial force F is caused by asymmetric pressure distribution on the blade.
The pressure on the working surface of the blade is greater than that on the back of the blade, and the pressure difference formed by it will also produce axial force.
Axial force F4 due to asymmetric pressure distribution in the impeller passage.
For vertical pumps, the internal rotor has gravity, which will become a part of the axial force; For horizontal pumps, this axial force does not exist.
The front and rear cover plates of the impeller are asymmetric.
Unreasonable factors exist in the structural design of shaft steps and shaft ends.
Other factors cause the rotor to produce axial force, such as the inner diameter of the pump cavity flowing upward.
Among the many factors that produce axial force, the dynamic reaction of the fluid in the pump cavity and the asymmetry of the front and rear cover plates of the impeller are the main reasons for the axial force of the rotor.
Calculation of relationship between flow and axial force
The calculation of the relationship between the axial force of the pump rotor and the fluid flow is complex and has various forms. Different forms of balance structures are used, and the calculation methods of the balancing force are correspondingly different. In this paper, the test object is proposed to adopt two different structures of a single balance drum or the combined mechanism of balance disc and balance drum as the axial force balance device of the pump, and the best performance is selected as the final balance scheme. According to two different structures, the relationship between the total axial force and the flow after balancing by the balancing device is determined.
①Using a single balance drum as the axial force balance device, the relationship between the fluid flow in the pump body and the total axial force of the rotor is calculated.
②Taking the combined mechanism of the balance disc and balance drum as the axial force balancing device, the relationship between the fluid flow in the pump body and the axial force of the rotor is calculated.
Application field
① In the production of chemical and petroleum sectors, most of the raw materials, semi-finished products, and finished products are liquids, and the production of semi-finished and finished raw materials into semi-finished products and finished products needs to go through complex technological processes. During these processes, pumps play a role in transporting liquids and providing pressure flow for chemical reactions. In addition, in many installations, pumps are used to adjust the temperature.
② In agricultural production, pumps are the main irrigation and drainage machinery. my country's rural areas are vast, and a large number of pumps are needed in rural areas every year. Generally speaking, agricultural pumps account for more than half of the total output of pumps. Pumps are also the most used equipment in the mining and metallurgical industries. The mine needs to be drained by pumps, and in the process of beneficiation, smelting, and rolling, pumps are needed to supply water.
③ In the power sector, nuclear power plants need nuclear main pumps, secondary pumps, and tertiary pumps, and thermal power plants need a large number of boiler feed pumps, condensate pumps, oil and gas mixing pumps, circulating pumps, and ash pumps.
④ In national defense construction, the adjustment of aircraft flaps, tail rudders, and landing gear, the rotation of warships and tank turrets, and the ups and downs of submarines all require pumps. High pressure and radioactive liquid, and some also require the pump without any leakage.
⑤ In short, whether it is aircraft, rockets, tanks, submarines, drilling, mining, trains, ships, or everyday life, pumps are needed everywhere, and pumps are running everywhere. That's why the pump is listed as a general-purpose machine, which is a major product in the machinery industry.
⑥ Electric pumps i.e. pump driven by electricity. The electric pump is composed of a pump body, a water lift pipe, a pump base, a submersible motor (including cables), and a starting protection de
