Email format error
Email cannot be empty
Email already exists
6-20 characters(letters plus numbers only)
The password is inconsistent
Email format error
Email cannot be empty
Email does not exist
6-20 characters(letters plus numbers only)
The password is inconsistent
PUMPS CM4-60 50HZ
If you need continuous running water, the Pump Express is your solution. With a maximum head of 16 ft and a maximum suction lift of 26 ft, this heavy-duty water pump works fast and efficiently to get the job done.
Our Continuous Water Pump is an excellent choice for your next gardening or irrigation project. With its heavy duty construction, fast motor speed and high suction lift, it is a powerful tool that will move water with ease.
With 1 HP, and a motor speed of 3450 RPM, this water centrifugal pump is ideal for circulating water, pressure boosting, and more! Whether you’re using it for garden maintenance, lawn upkeep, or other large-scale needs. Take control of water transfer with our trusted Continuous Water Pump.
Product parameters
| 50Hz | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Model | Driving motor P2(KW) | Q (m3/h) | 2.0 | 3.0 | 4.0 | 5.0 | 6.0 | 7.0 |
| CM4-60 | CHLF2460 | 1.1 | H (m) | 53 | 50 | 45 | 40 | 33 | 24 |
Pump selection steps
Confirm environmental conditions
Including ambient temperature, relative humidity, atmospheric pressure, air corrosivity, dangerous area grade, dust, and waterproof requirements.
Confirm the operating conditions
It refers to the liquid level pressure at the suction side (absolute), the liquid level pressure at the discharge side, intermittent or continuous work, fixed position or movement, and the convenience of installation and maintenance.
Confirm the nature of the medium
Including medium name, temperature, density, viscosity, saturated steam pressure, solid particle diameter and content, gas content, corrosivity, volatility, flammability, and toxicity.
Select the material of the flow passage parts of the pump
According to the physical and chemical properties of the pumped medium, the following aspects are mainly considered:
(1)Corrosivity of medium
The corrosion resistance of the flow passage parts of the pump can meet the use requirements. Do not pursue too high corrosion resistance, otherwise, the purchase cost of the pump will be greatly increased.
(2)Whether the medium contains solid particles
Because the hardness and content of solid particles are directly related to the durability of pump flow parts.
(3)Temperature (pressure) of medium
The higher the temperature (pressure) of the medium, the higher the material strength of the flow passage parts of the pump. Generally, when the temperature is >250 ℃, steel castings or steel parts should be selected.
(4)Media with sanitary grade or prohibited pollution requirements
Select the corresponding flow passage component material. In addition, the structure of the pump should be easy to clean.
Select pump type
Refer to "I. pump selection principle" in this article.
Select pump performance parameters
(1)Calculation method
- Flow: it is directly related to the production capacity and transportation capacity of the whole device. For example, the normal, minimum, and maximum flows of the pump can be calculated in the process design. When selecting a pump, take the maximum flow as the basis and consider the normal flow. If there is no maximum flow, 1.1 times the normal flow is usually taken as the maximum flow.
- Head: generally, the head after enlarging the margin of 5%-10% shall be used for model selection. Special attention: the margin of centrifugal pump flow, especially the head, should not be too large, otherwise, cavitation may occur when the pump is working, resulting in the flow and head failing to meet the requirements. Once this happens, generally, remedial measures such as cutting the outer diameter of the impeller or turning down the pump outlet valve can be taken.
- Power: generally, the powder form and size of the pump are selected by the manufacturer and marked in the product sample.
- NPSH
Check whether the NPSH and necessary NPSH of the pump device match. When it cannot be met, effective measures should be taken to achieve it.
(2)Analogy method, test method
When the resistance value of the pump pipeline system cannot be accurately calculated, the flow, head, and other performance parameters of the required pump can be determined by analogy or test method.
Select the pump installation type
According to the pipeline layout and installation site, horizontal, direct connection, vertical and other types (right angle type, variable angle type, angle type, double connection type, removable type) shall be selected.
Determine the number of pumps and standby rate
Generally, only one pump is used for normal operation, because a large pump is equivalent to two small pumps working in parallel (referring to the same head and flow), and the efficiency of the large pump is higher than that of the small pump, so from the perspective of energy conservation, it is better to choose a large pump instead of two small pumps, but in case of the following situations, the parallel cooperation of two pumps can be considered:
(1)The flow is large, and one pump cannot reach this flow.
(2)For pumps requiring a 50% standby rate, three pumps can be configured as two-purpose and one standby.
(3)For some large pumps, the pumps with 70% flow requirements can be selected for parallel operation without standby pumps. When one pump is overhauled, the other pump still undertakes 70% of the product delivery.
(4)One pump that must operate continuously for 24 hours should be operated, one for standby and one for maintenance. There are three pumps in total. If necessary, the pump supplier can assist in the selection.
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
