agricultural pump industry leader-Wel Pump

Wel Pump mainly engaged in various types of agricultural pump and control equipment research and development, production and sales. The company is China’s agricultural pump industry’s first brand, the company’s agricultural pump production and sales for nine consecutive years in China first.

Wel Pump agriculture pump contains of agriculture submersible pump,agriculture sewage pump,agriculture d-type pump,agriculture centrifugal pump and etc.with imported hydraulic mode, and high-grade, precision and advanced CNC production equipment, the reliability of the products it manufacturers is greatly improved and the technical indexes of its pumps are ensured to reach domestic advanced level.

In recent years, we have established branch companies in Henan, Shandong, Wuhan, Liaoning, and Inner Mongolia, etc. At the same time, our foreign trade department is popularizing “Weihu(WEL)” pumps all over the world. Our product brand and product quality has been recognized as reliable by customers from over 40 countries.

The company’s biggest advantage lies in its brand and channel advantages. The company’s products in the country with high visibility, at the same time, relying on the country’s first and second-class dealer channel advantage, the company already has continued to improve its market share of competitive advantage.

With the national policy to promote water conservancy, water-saving irrigation, water pollution prevention and control development, the pump industry growth will be maintained. The Company’s net profit of water pump business has maintained a high growth rate.

Agricultural irrigation submersible pump selection

Agricultural irrigation submersible pump is an important equipment in agriculture, especially in the absence of rain, which is more frequent. General irrigation is from the river, drains inside the water pumped to the farmland for irrigation, or under the pressure of the rated water to spray down to the air.

Agricultural Irrigation pumps are generally selected in the head of less than 30 meters, under special circumstances can choose more than 100 meters of the pump. The amount of water discharged from a farm irrigation pump depends on the size of the farmland, the soil conditions, and the climatic conditions. The customer needs to determine the amount of water required per hour depending on the actual operating conditions, but is usually 1 to 5 L / s.

Agricultural Irrigation submersible pump pressure less than 10 meters, you can choose axial flow pump and low-lift single-stage double-suction centrifugal pump. Lift greater than 10 meters, you can choose the submersible pump or self-priming pump as irrigation equipment, if you need a lot of pressure, you can choose low-flow high-lift centrifugal pump or high-lift submersible pump. No matter what type of pump, as long as it is used in agricultural irrigation above, we are generally referred to as irrigation pumps, in the selection of more than when taking into account the pump structure, installation, select.

Teach you to install agricultural submersible pumps

agricultural submersible pumps are small and light, cheap, easy to operate, in rural production and life plays an important role. The correct installation of agricultural submersible pumps is the majority of agricultural friends to learn and master the basic points, so that the use of safety science submersible pump.

1, before installing the agricultural submersible pumps carefully check: first check whether the rotation of the pump shaft is flexible; Second, check the water hose without damage, if cracked in time to repair; then check the tightening bolts without loosening, to tighten the loose bolts ; Finally check the pump motor windings, cable insulation resistance, only not less than 0.5 megohm to allow installation.

2, agricultural submersible pumps power cord should be selected according to the provisions of the cable to overhead, the power cord should not be too long, if the power supply and pump far away from the use of wiring cable cross-sectional area should be increased, the joints should be minimized to reduce Line voltage drop. To ensure safety, in the vicinity of the power supply or water in the wet buried a length of one meter above the metal rod as a ground.

3, the installation location of the agricultural submersible pumps to be correct, submersible diving depth of the pump is generally 0.35 ~ 3m. Submersible pump submerged in the water should be vertical lifting, can not be recumbent, but can not fall into the mud.

Correct installation of agricultural pumps, to reduce the failure of submersible pumps, extending the service life of agricultural submersible pumps is essential.

Reasonable Selection Method of Agricultural submersible pump

Agricultural submersible pump is widely used in rural areas of irrigation and drainage water treatment and industrial and mining sites for water supply and drainage. We have done market survey submersible pump of the actual application: which found a lot of agricultural submersible pumps due to the selection and installation is not appropriate, making the pump can not play its due role, the pump motor life shortened, and some even burned motor And personal injury accidents.

Many types of Agricultural submersible pump, must be based on the actual situation appropriate choice. According to our experience, can be considered from the following three aspects:

First, the choice of the main parameters of Agricultural submersible pump

(1) Head: refers to the pump pumping unit weight of liquid from the pump inlet to pump the value of the energy of the water, that is pumping the liquid column height of liquid. In H, the unit is m. It should be noted that when the submersible pump is used to raise the well water, the value of HD is determined according to the lowest point where the water level in the well may drop. In addition, the pipe length, elbow and pipe wall are rough and the water pressure is reduced. So that the head loss HL increases. In our experience, the value of HL is usually 10% of the length of the pipeline to consider. According to the above formula to determine the head H2N, we propose to increase the head margin of 5%, in order to avoid the actual use of inadequate head. But do not add too much waste.

(2) flow: refers to the pump in a unit of time pumping out the amount of liquid. Expressed in Q, in m³ / h. The choice of submersible pump flow should pay attention to two points: First, the well water running submersible pump, the flow should be less than or equal to the amount of water in the well. Otherwise it will drain the water in the wells, causing the motor burned; Second, the actual work of the submersible pump flow to be 0.7 to 1.2 times the rated flow between the pump. Because the efficiency of the pump in this flow range is high.

Second, the choice of the structure of Agricultural submersible pump

(1) According to the structure of the pump motor type, dry, oil-immersed, water-filled and shielded. Dry-type motors like ordinary closed-type motor, the stator and rotor in the air; oil-filled motor filled with oil; filled motor filled with water; shielded motor set, the rotor is separated, the stator part is dry , The rotor part of the oil-filled or water-filled.

Dry-type motor sealing performance is relatively poor, but the price is cheap; oil-filled motor and water-filled motor can improve the sealing conditions, so that outside water is not easy to enter the motor interior, wide application; shielded motor sealing performance and insulation Performance is better, the price is more expensive.

(2) according to the structure of the pump itself to points, axial flow, centrifugal and mixed flow, etc., each for different occasions. Axial flow pump for low head, large flow; centrifugal pump for high-head, small flow; Francis pump is suitable for head and flow are relatively modest.

We just follow the above two aspects, combined with the actual application of the specific circumstances, we can on the structure of the submersible pump to make the appropriate choice.

Third, the choice of Agricultural submersible pump water piping

A variety of submersible pumps have a certain requirements on the outlet pipe, ID size does not match the length or length will affect the flow, reduce efficiency and waste of electricity. But also the consumption of pump head, less than the use of submersible pump requirements. So be sure to pump in accordance with the requirements of the inner diameter of the outlet pipe matching the water pipe, the length to reach the height of the minimum height of the length of the principle to determine. As a result of shortage of water supply and other issues need to replace, the substitute pipe water flow rate should be controlled in the general 4m / s or less.

correct installation of small agricultural submersible pump

small agricultural submersible pump is small and lightweight, cheap, easy to operate, in rural production, life plays an important role. The correct installation of small agricultural submersible pump is the basic point of learning and mastering of the majority of agricultural friends, so that the safety and scientific use of submersible pumps.

1, before installing the submersible pump carefully check: first check the pump shaft is flexible; second check the water hose for damage, if cracking to timely repair; and then check the fastening bolts are loose, to tighten the loose bolt ; Finally check the pump motor winding, cable insulation resistance, only not less than 0.5 megohms before allowing the installation and use.

2, submersible pump power cord should be selected according to the provisions of the cable to be overhead, the power cord should not be too long, if the power supply and the pump from the use of distance, wiring cable cross-sectional area should be appropriate to increase the joints should be as little as possible to reduce Line drop. To ensure safety, a metal rod with a length of one meter or more can be buried in the wetlands near the power supply or pump.

3, submersible pump installation location to be correct, submersible pump diving depth is generally 0.35 ~ 3m. Submersible pump in the sinking into the water should be vertical lifting, can not lie, but can not fall into the mud.

Proper installation of small agricultural submersible pump is essential to reduce the failure of submersible pumps and to extend the service life of agricultural submersible pumps.

agricultural irrigation pump introduction and classification

agricultural irrigation pump is a submersible motor as the driving force, the motor and the pump assembled into one into the underwater operation of the water lifting machinery, there are small submersible pumps, sewage submersible pumps, submersible pumps and submersible screw pump And so on several types. agricultural irrigation pump is small and lightweight, cheap, easy to operate, in rural production and life plays an important role. With the development of rural economy, submersible pump products are widely used in farmland irrigation, sewage removal and extraction of well water reference and so on.

agricultural irrigation pump type

1, axial flow pump, mixed flow pump, diagonal pump and screw pump
There are many types of agricultural irrigation pump, in some large irrigation and drainage stations are mostly use axial flow pump, mixed flow pump, diagonal pump and screw pump. Their common characteristics are large flow, low head, simple structure, easy to install and use. They are mainly used in large area watershed irrigated farmland and flood control floods. Axial and diagonal pump The impeller on the impeller can be divided into two kinds of fixed and adjustable, so change the installation angle of the blade can change the working conditions of the pump. Axial pump due to changes in the angle can cause changes in the head, but the magnitude is not, the flow is a big change. Oblique flow pump can change the angle can cause the head and the flow has the big change.

2, water pump, water hammer pump and self-priming pump (medium water and mud two)

A water pump and a water hammer pump are a pump that does not require mechanical power. They are using a certain gap and flow of small streams of water as the driving force. Mostly in the mountains of small pieces of land irrigation, irrigation or drip irrigation. This pump as long as the dam after the repair canal, a certain drop of water into the pump which can be high to the water. Self-priming pump works is: before the pump starts in the pump casing filled with water (or pump itself with water). After the start of the high-speed rotation of the impeller so that the impeller channel flow of water to the volute, then the entrance to form a vacuum, so that the water back door open, the suction pipe into the pump air, and impeller channel to the outer edge. Self-priming pump is a self-priming centrifugal pump. It has the advantages of compact structure, convenient operation, smooth operation, easy maintenance, high efficiency, long life and strong self-priming ability. Pipeline do not need to install the end of the valve, just before the work to ensure that the pump can be stored within the quantitative solution can be. Different liquids can use different materials from the suction pump.

agricultural irrigation pump category

In the province of rural areas, deep well pumping, pond irrigation and drainage, land irrigation is often used in QJ deep well submersible pumps, QS large diameter flow cast iron pumps, etc., in environmental protection, sewage treatment, excavation of small rivers, dig pond fish , The use of sewage pump, mud pump, sand pump, no plug pump and other pumps. These pumps can transport sewage, both the discharge of sludge water, but also the river water to mention the established emissions, easy to use and convenient, so more popular with rural users

QS agriculture small submersible electric pump

QS agriculture small submersible electric pump widely used in farmland irrigation, spray irrigation, well water drawing, water supply and drainage for industrial or civil buildings, also the water drawing system for hills, mountain areas, drainage of stagnant water in low-lying areas, urban and rural mining water supply, drainage and other water conservancy facilities. Its Characteristics are that the motor and pump are assembled into a simple structure, easy to install, maintain or disassemble, covering little area. It works in a safe and reliable way, will not pollute water source.

we are a professional agriculture pump manufacturer,we supply agriculture submersible pump and agriculture sewage pump.

QS agriculture small submersible electric pump Service Conditions:

1. Power: 50 Hz frequency and voltage of 380 volts (allowing deviations +5%, -10%) three-phase AC power. Pumps should be totally immersed under water for operation, diving depth not less than 0.5 meters, no more than 5m.
2. Water source: common non-corrosive water, sand content no more than 0.02%.
3. PH: 6.5 ~ 8.5, temperature of the water being pumped shall be no higher than 30 ° C.
4. Before usage, the chamber of the motor must be filled with clean water; running with water shortage is strictly prohibited.

QS agriculture small submersible electric pump Characteristics:

(1). motors and pumps assembled into one,
(2). simple structure,
(3). easy installation and removal , small area,
(4). simple using and maintenance , safe and reliable operation,
(5). no pollution to water, etc.

QY agriculture oil filled submersible pump

QY agriculture oil filled submersible pump is widely used in farmland irrigation, spray irrigation, well water drawing, water supply and drainage for industrial or civil buildings, also the water drawing system for hills, mountain areas, drainage of stagnant water in low-lying areas, urban and rural mining water supply, drainage and other water conservancy facilities. Its Characteristics are that the motor and pump are assembled into a simple structure, easy to install, maintain or disassemble, covering little area. It works in a safe and reliable way, will not pollute water source.

we are a professional agriculture pump manufacturer,we supply agriculture submersible pump and agriculture sewage pump.

get quotation: sales@agriculturepump.com

• Flow: 10~100m3/h


• Lift： 5~54m


• Caliber： Ф51~Ф200mm


• Power： 2.2-15kw


• Temperate： ≤40℃

QY agriculture oil filled submersible pump Service conditions

1. The submersible shall be immersed no more than 5m deep under water.
2. Water temperature shall not be higher than 40℃.
3. The sand content shall not be higher than 0.1%. The volume ratio of solid particles insoluble in water shall not be higher than 0.1%, size no bigger than 0.2mm.
4. The water shall be non-corrosive, PH value 6.5~8.5, for example common clean water, well water, river water and lake water at room temperature.

QJG high lift agriculture submersible pump

QJG high lift agriculture submersible pump is widely used in farmland irrigation, spray irrigation and water-use, industrial and civil buildings, mountain diversion and in low-lying areas dunes, urban and rural mining supply, drainage and other water conservancy facilities.

we are a professional agriculture pump manufacturer,we supply agriculture submersible pump and agriculture sewage pump.

get quotation: sales@agriculturepump.com

• Flow: 10-500m3/h


• Lift： 10-600m


• Caliber： φ32-φ203mm


• Power： 1.5-160KW


• Temperate： -15-80°C

QJG high lift agriculture submersible pump Material:

Impeller: Cast iron HT200,or stainless steel
Pump bowl: Cast iron HT200,or stainless steel,such as ss304 ss316
Pump shaft : Cold-drawn steel with chrome plating,or stainless steel ss304 ss316
Motor Seal: Rubber O-ring seal,mechanical seal
Motor regulating sleeve: rubber

QJG high lift agriculture submersible pump Using condition:

(1). 380V voltage deviation is no more than ±5%,frequency is 50HZ, three -phase power deviation is no more than ±1%.
(2). Motor cavity must be filled with water.
(3). The first stage impeller of the pump should be more than 2mm below the moving water surface, pump unit should be less than 70m below the static water level.
(4). The distance from the motor bottom to well bottom must be more than 3m.
(5). Water temperature should be no more than 20°C.
(6). Sand content of the water ( by mass) should be no more than 0.01%.
(7). PH value of water 6.5-8.5.
(8). Hydrogen sulfide content of the water should be no more than 1.5mg/L.
(9). Chloride ion content of the water should be no more than 400mg/L.
(10). Water yield of water source should ensure the requirements of pump continuous working.

agriculture stainless steel submersible pump

agriculture stainless steel submersible pump is widely used in various kinds of water conservancy facilities such as farm irrigation, sprinkler irrigation with water, industrial and supply and drainage system of civil building, draining water in hills or mountainous area, diversion in low-lying areas, urban and rural industrial and mining enterprises water supply, drainage, etc. 

agriculture stainless steel submersible pump 

• Flow: 10-500m3/h 
• Lift： 10-600m 
• Caliber： 32-203mm 
• Power： 0.4-160KW 
• Temperate： 15~40℃ 

agriculture stainless steel submersible pump Application: 

 Irrigation, drip irrigation, lift irrigation Industry: cooling tower, high pressure Domestic: high rise building, long distance puming,fountain, water parks, washer etc.

agriculture stainless steel submersible pump using condition: 

1.  380V voltage deviation is no more than ±5%,frequency is 50HZ, three -phase power deviation is no more than ±1%. 
2. Motor cavity must be filled with water. 
3. The first stage impeller of the pump should be more than 2mm below the moving water surface, pump unit should be less than 70m below the static water level. 
4. The distance from the motor bottom to well bottom must be more than 3m. 
5. Water temperature should be no more than 20°C. 
6. Sand content of the water ( by mass) should be no more than 0.01%. 
7. PH value of water 6.5-8.5. 
8. Hydrogen sulfide content of the water should be no more than 1.5mg/L. 
9. Chloride ion content of the water should be no more than 400mg/L. 
10. Water yield of water source should ensure the requirements of pump continuous working.

QJ agriculture deep well submersible pump for sale

QJ agriculture deep well submersible pump is widely used in various kinds of water conservancy facilities such as farm irrigation, sprinkler irrigation with water, industrial and supply and drainage system of civil building, draining water in hills or mountainous area, diversion in low-lying areas, urban and rural industrial and mining enterprises water supply, drainage, etc.

Its motor and water pump assembly into one, with simple structure, convenient installation remove, cover an area small, easy to use and maintain, safe and reliable operation, no water pollute, etc.

QJ agriculture deep well submersible pump Applicable scope:

1. the three phase power which voltage 380 V, deviation no more than 5%, frequency 50 HZ ac, deviation no more than 1%.
2. motor lumen must be filled with the clean water.
3. the first level of pump impeller should be put into the dynamic water level at least 2 m, the electric pumping unit in the following static water level must not be more than 70 m from the bottom, the motor shall no less than 3 m from the well bottom.
4. water temperature is not higher than 20 ℃, QJR type hot water submersible pump temperature can reach to 80℃.
5. sand content of water (according to the quality) no more than 0.01%.
6. the PH of the water is among 6.5-8.5.
7. the water content of hydrogen sulfide is no more than 1.5 mg/L.
8. the content of chlorine ion in the water is not more than 400 mg/L
9. water yield shall ensure the need of the water pumping continuous operation .

QJ agriculture deep well submersible pump work principle

QJ deep welll submersible pump is a combination of motor and pump. It works under water. It can draw water in an efficient and energy saving way. It is composed of submersible motor, water pump, lifting pipe, etc. It uses vertical water filling wet squirrel cage three-phase asynchronous motor. It is filled with clean water inside to cool the motor and lubricate the bearing. Its motor winding uses polyethylene insulation nylon sleeve and water-resistant magnet wire. The top part of the motor is sealed with deflector and framework oil, preventing medium leakage inside and outside the motor. The pump is vertical type, with single stage/multistage closed centrifugal impeller. Its discharge bowel delivers liquids.