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Stainless Steel Horizontal Multistage Pump CUC8-30 50HZ
The pump is used for secondary pressurization by centrifugal pump because the water pressure is insufficient and low enough to meet the demand. Recommended equipment: nonnegative pressure variable frequency water supply equipment, which can be directly used without changing or replacing other parts of the whole process.
It is recommended to install a pump which is used for secondary pressurization by centrifugal pump because the water pressure is insufficient and low enough to meet the demand. It can achieve stable water pressure, which can promote the normal operation of equipment and ensure the health of users.
Product parameters
| 50Hz | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Driving motor P2(KW) | Q (m3/h) | 4.0 | 5.0 | 6.0 | 7.0 | 8.0 | 9.0 | 10 |
| CUC8-30 | 1.85 | H(m) | 50 | 46 | 44 | 40 | 36 | 30 | 26 |
Product Advantage
- The structure is simple and compact. For the same delivery volume, the centrifugal pump occupies a small area, is light in weight, consumes fewer materials, and has high requirements for the foundation. Therefore, the manufacturing and installation costs are low.
- It can operate at high speed, and can adopt a 2-pole or 4-pole motor for direct connection. The transmission structure is simple and easy to install.
- There is no valve in the centrifugal pump, so it is suitable for conveying suspension. The special design can also transport suspension of large solids.
- The pump can be made of chemical resistant materials, and is suitable for conveying corrosive solutions.
- Because of its simple structure, fewer parts, fewer failures, durability, fewer maintenance costs, convenient management and reliable work.
- The output can be adjusted or even fully closed by the discharge valve, without the risk of infinite rise of the pressure head.
- The centrifugal pump is most suitable when the liquid volume to be transported is large and the pressure head is not required to be large.
- The discharge is even without pulse.
Product Application
Buildings
In the construction process, the water demand is relatively large; We also call it temporary construction water, which includes construction water and daily water for construction personnel. At this time, equipment supply of centrifugal pump is required.
Supercharging application
It is used for secondary pressurization by centrifugal pump because the water pressure is insufficient and low enough to meet the demand. Recommended equipment: nonnegative pressure variable frequency water supply equipment.
Well pumping
It is commonly used in the rural household water supply systems.
Fire protection system
There are centrifugal pumps for fire fighting, and pressure boosting, and stabilizing systems for fire fighting, which are also centrifugal pumps.
Hot water circulation
It is used to pressurize the sealed thermal insulation hot water system to circulate the water in the system. Keep the temperature constant through the heating system.
Basic knowledge of centrifugal pump that must be understood
What happens when the centrifugal pump is evacuated?
When the running pump starts to evacuate, it will suddenly make noise and vibration, accompanied by the reduction of pressure, flow, and current. When the evacuation is serious, the pump will vibrate strongly, the pressure will return to zero, and there is no liquid in the pump.
What are the causes of bearing housing heating?
The pump shaft is not concentric with the motor shaft.
The lubricating oil (grease) is too much or too little, and the oil (grease) deteriorates.
The oil ring breaks or jumps out of the fixed position.
Axial thrust increases.
Insufficient or interrupted cooling water.
The bearing is worn.
The flow is too small, making the pump close to the evacuation state.
Pump vibration is caused by an unstable foundation, unbalanced rotor, loose bolts, and other reasons.
Why should the pump freeze in winter?
The volume expansion of water occurs below zero. If the water left in the pump is not cleaned out, the force generated by the volume expansion at low temperatures will make the pump expand and crack, causing unnecessary damage. Anti-freezing methods mainly include the following:
Drain the water stored in the idle pump.
Keep the cooling water flowing.
Keep the pump warm or use steam and hot water for heat tracing.
The standby pump keeps the inlet and outlet flow.
How to deal with the frozen pump?
After the pump is frozen, never blow it directly with steam to prevent it from cracking due to uneven thermal expansion of the pump body.
After the pump is frozen, pour it with cold water first, and then pour it with steam or hot water after the motor car is turned.
Why should the pump body be cooled?
During the operation of the pump, the fluid friction between the liquid and the pump body, and the friction between the rotating part and the fixed part, such as the ball and inner and outer rings of the bearing, the shaft sleeve, and the packing, will generate heat due to friction. At the same time, due to the high temperature of the medium, it will be transmitted to the pump, making the pump body hot. The purpose of cooling is to reduce the temperature of the pump body, pump seat, bearing box, and shaft seal, to prevent these parts from deformation, aging, and damage due to temperature rise.
Under what circumstances does the motor have to stop in an emergency?
Endanger personal safety.
When the motor is smoking, smelly, or on fire.
When great vibration or axial cascade occurs.
When the body or bearing is heated to the limit.
The motor speed is slow and accompanied by abnormal sound.
How to distinguish cavitation?
There is a violent noise in the pump.
When the outlet pressure is unstable and serious, it cannot be measured.
The pump body vibrates.
The medium temperature rises.
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. pumps 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
