China Custom Complete Heads Sewage Pump Centrifugal Vacuum Pump Sewage Water Pump with Float Switch vacuum pump design

Product Description


Product Description

The WQK/QG belt cutting device sewage pump has a particularly strong sewage passing capacity and good belt cutting performance. It can chop long fibers, plastics, paper, belts, cloth strips, straw, rope and other impurities in the sewage and discharge them. WQK/QG sewage pump with cutting device is an excellent combination of dry motor and water pump. WQK series sewage submersible sewage pump is mainly used to discharge domestic wastewater, sewage, human feces and CZPT suspended solids and non-corrosive media containing short fiber paper scraps, wood chips, starch, sediment, ore particles, etc., and pumps liquids The temperature does not exceed 40°C, the density does not exceed 1200kg/m³, and the ph value is 5 to 9. This electric pump uses double-end mechanical seals and a rotating impeller. The impeller is made of stainless steel, is wear-resistant, non-clogging, non-winding, has the advantages of small size, compact structure, and easy portability.

Product Parameters

Product Name WQ/QW/WQD/WQP/WQB
Material Stainless steel/cast iron
Flow rate(m³/h) 7-2500m³/h
Head(m) 8-80m
Power(KW) 0.55KW-250KW
Caliber(mm) 25-500mm
Speed(r/min) 1450/2980 r/min
Efficiency(%) 45%-85%
Application area 1. The discharge of severely polluted wastewater from factories and businesses.
2. Urban sewage treatment plant drainage system.
3. A sewage drainage station in a residential area.
4. Water supply devices for civil air defense drainage stations and water treatment plants.
5. Sewage discharge from hospitals and hotels.
6. Municipal engineering and construction sites.
7. Exploration and mining supporting machinery.
8. Rural areas, biogas digesters, and farmland irrigation

Product Features
 1. It adopts the design of large flow channel anti-clogging hydraulic components, which greatly improves the dirt passing capacity and can effectively pass through 5 times the fiber material of the pump diameter and CZPT particles with a diameter of about 50% of the pump diameter.
2. Reasonable design, reasonable matching motor, high efficiency and energy saving.
3. The mechanical seal adopts double-pass series sealing, made of hard wear-resistant tungsten carbide, which is durable and wear-resistant, allowing the pump to operate safely and continuously for more than 8,000 hours.
4. The pump has a compact structure, small size, easy movement and installation. There is no need to build a pump room and it can work when submerged in water, which greatly reduces the project cost.
5. There is an oil-water probe in the oil chamber of the pump. When the mechanical seal on the water pump side is damaged, water enters the oil chamber and the probe generates a signal to protect the pump.
6. A fully automatic safety protection control cabinet can be equipped according to user needs to monitor water leakage, electric leakage, overload and over-temperature of the pump to ensure reliable and safe operation of the pump.
7. The double guide rail automatic coupling installation system brings great convenience to the installation and maintenance of the pump. People do not have to enter and exit the sewage pit for this purpose.
8. The float switch can be changed according to the required water level. Automatically controls the start and stop of the pump without the need for special supervision.
9. Ensure that the motor is not overloaded within the operating lift range.
10. Depending on the usage occasion, the motor can adopt a water-jacketed external third-party circulating cooling system, which can ensure the safe operation of the electric pump in a waterless (dry) state.
11. There are 2 installation methods: fixed automatic coupling installation and mobile free installation, which can meet different usage occasions.

Scope of application of WQK/QG cutting sewage pump:
·Used in construction sites, engineering foundation construction, municipal facilities, and water plants.
·Sewage discharge from basements of various high-rise buildings, civil air defense pits, subways and other underground layers.
·Sewage treatment and circulating water transportation for small and medium-sized enterprises.
·Pumping of slag slurry in factories and mines such as food, papermaking, brewing, steel and non-ferrous metals, tHangZhou, textiles, pharmaceuticals, cement plants, etc.
·It is used in chicken farms, pig farms, various breeding industries, fish ponds for pumping water to clear ponds, increasing oxygenation, pumping human and animal excrement and urine in septic tanks and other occasions.

Working environment:
The electric pump should be able to work continuously and normally under the following conditions of use
1. The water temperature does not exceed 40C;
2. The pH value is between 6.5-8.5;
3. The ratio of CZPT impurities in water does not exceed 0.1%, and the particle size is not greater than 0.2mm;
4. The diving depth does not exceed 5m

Product Show

Technical Parameter

50WQ15-15-1.5 1.5 380 15 15 50
50WQ9-22-2.2 2.2 380 9 22 50
65WQ27-15-2.2 2.2 380 27 15 65
80WQ45-9-2.2 2.2 380 45 9 80
50WQ15-30-3 3 380 15 30 50
65WQ25-20-3 3 380 25 20 65
80WQ43-13-3 3 380 43 13 80
100WQ50-10-3 3 380 50 10 100
50WQ15-35-4 4 380 15 35 50
65WQ25-26-4 4 380 25 26 65
80WQ40-16-4 4 380 40 16 80
100WQ60-10-4 4 380 60 10 100
50WQ15-40-5.5 5.5 380 15 40 50
80WQ30-30-5.5 5.5 380 30 30 80
100WQ65-15-5.5 5.5 380 65 15 100
80WQ45-22-7.5 7.5 380 45 22 80
100WQ65-20-7.5 7.5 380 65 20 100
150WQ100-10-7.5 7.5 380 100 10 150

100WQ110-10-5.5 5.5 380 1450 110 10 100
150WQ150-7-5.5 5.5 380 1450 150 7 150
80WQ80-20-7.5 7.5 380 1450 80 20 80
100WQ100-15-7.5 7.5 380 1450 100 15 100
150WQ145-9-7.5 7.5 380 1450 145 9 150
100WQ100-25-11 11 380 1450 100 25 100
150WQ130-15-11 11 380 1450 130 15 150
200WQ300-7-11 11 380 1450 300 7 200
250WQ400-5-11 11 380 1450 400 5 250
100WQ100-30-15 15 380 1450 100 30 100
150WQ130-20-15 15 380 1450 130 20 150
200WQ250-11-15 15 380 1450 250 11 200
250WQ400-7-15 15 380 1450 400 7 250
100WQ100-35-18.5 18.5 380 1450 100 35 100
150WQ180-20-18.5 18.5 380 1450 180 20 150
200WQ250-15-18.5 18.5 380 1450 250 15 200
250WQ500-7-18.5 18.5 380 1450 500 7 250
100WQ100-40-22 22 380 1450 100 40 100
150WQ180-25-22 22 380 1450 180 25 150
250WQ300-15-22 22 380 1450 300 15 200
250WQ500-8-22 22 380 1450 500 8 250
150WQ180-30-30 30 380 1450 180 30 150
200WQ250-22-30 30 380 1450 250 22 200
250WQ600-9-30 30 380 1450 600 9 250
300WQ800-7-30 30 380 1450 800 7 300
150WQ200-30-37 37 380 1450 200 30 150
200WQ350-25-37 37 380 1450 350 25 200


150WQ200-35-45 45 380 1450 200 35 150
200WQ400-25-45 45 380 1450 400 25 200
250WQ600-15-45 45 380 1450 600 15 250
300WQ800-12-45 45 380 1450 800 12 300
350WQ1200-8-45 45 380 1450 1200 8 350
150WQ200-45-55 55 380 1450 200 45 150
200WQ300-40-55 55 380 1450 300 40 200
250WQ600-20-55 55 380 1450 600 20 250
300WQ800-15-55 55 380 1450 800 15 300
350WQ1100-10-55 55 380 1450 1100 10 350
400WQ1300-9-55 55 380 1450 1300 9 400
150WQ200-57-75 75 380 1450 200 57 150
200WQ350-45-75 75 380 1450 350 45 200
250WQ600-25-75 75 380 1450 600 25 250
300WQ800-20-75 75 380 1450 800 20 300
350WQ1300-12-75 75 380 1450 1300 12 350
400WQ1500-10-75 75 380 1450 1500 10 400
150WQ200-65-90 90 380 1450 200 65 150
200WQ300-55-90 90 380 1450 300 55 200
250WQ600-30-90 90 380 1450 600 30 250
300WQ800-25-90 90 380 1450 800 25 300
350WQ1500-15-90 90 380 1450 1500 15 350
400WQ1800-12-90 90 380 1450 1800 12 400
200WQ300-65-110 110 380 1450 300 65 200
250WQ600-35-110 110 380 1450 600 35 250
300WQ1000-25-110 110 380 1450 1000 25 300
350WQ1500-18-110 110 380 1450 1500 18 350
200WQ300-75-132 132 380 1450 300 75 200
250WQ600-40-132 132 380 1450 600 40 250
300WQ1000-30-132 132 380 1450 1000 30 300
350WQ1500-20-132 132 380 1450 1500 20 350


Company Profile


Q1: Are you a factory or a trading company?
A: We are manufacturer.
Q2: What are your payment terms?
A: 30% T/T in advance, balance should be paid after receiving BL copy or LC at sight.
Q3: Can you do OEM?
A: Yes,we can. Any OEM are welcome!
Q4: How about the MOQ?
 A: Usually, it is 50-100 PCS for each modelBut sample order is highly welcome.
Q5:How about the delivery time?
A: 15-30 days after receiving customersdeposit.
Q6: How long is your warranty?
A: 1 year.
Q7:What can we do in one-year warranty?
A: 1.Providing Spare parts; 2.Engineer is available to service

For more details.pls send us your details need. 
we will feedback ASAP.

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After-sales Service: Online After-Sales Service
Warranty: 1year
Max.Head: >150m
Max.Capacity: >400 L/min
Driving Type: Motor
Material: Stainless Steel


Vacuum Pump

Basic knowledge of vacuum pump

A vacuum pump is a device that draws gas molecules from a sealed volume and maintains a partial vacuum. Its main job is to create a relative vacuum within a given volume or volumes. There are many types of vacuum pumps. This article will describe how they work, their types, and their applications.

How it works

A vacuum pump is a mechanical device that removes gas from a system by applying it to a higher pressure than the surrounding atmosphere. The working principle of the vacuum pump is based on the principle of gas transfer and entrapment. Vacuum pumps can be classified according to their vacuum level and the number of molecules that can be removed per cubic centimeter of space. In medium to high vacuum, viscous flow occurs when gas molecules collide with each other. Increasing the vacuum causes molecular or transitional flow.
A vacuum pump has several components that make it a versatile tool. One of the main components is the motor, which consists of a rotor and a stator. The rotor and stator contain coils that generate a magnetic field when excited. Both parts must be mounted on a base that supports the weight of the pump. There is also an oil drain that circulates oil throughout the system for lubrication and cooling purposes.
Another type of vacuum pump is the liquid ring vacuum pump. It works by positioning the impeller above or below the blades. Liquid ring pumps can also adjust the speed of the impeller. However, if you plan to use this type of pump, it is advisable to consult a specialist.
Vacuum pumps work by moving gas molecules to areas of higher or lower pressure. As the pressure decreases, the removal of the molecules becomes more difficult. Industrial vacuum systems require pumps capable of operating in the 1 to 10-6 Torr range.


There are different types of vacuum pumps. They are used in many different applications, such as laboratories. The main purpose of these pumps is to remove air or gas molecules from the vacuum chamber. Different types of pumps use different techniques to achieve this. Some types of pumps use positive displacement, while others use liquid ring, molecular transfer, and entrapment techniques.
Some of these pumps are used in industrial processes, including making vacuum tubes, CRTs, electric lights, and semiconductor processing. They are also used in motor vehicles to power hydraulic components and aircraft. The gyroscope is usually controlled by these pumps. In some cases, they are also used in medical settings.
How a vacuum pump works depends on the type of gas being pumped. There are three main types: positive displacement, negative displacement, and momentum transfer. Depending on the type of lubrication, these principles can be further divided into different types of pumps. For example, dry vacuum pumps are less sensitive to gases and vapors.
Another type of vacuum pump is called a rotary vane pump. This type of pump has two main components, the rotor and the vacuum chamber. These pumps work by rotating moving parts against the pump casing. The mating surfaces of rotary pumps are designed with very small clearances to prevent fluid leakage to the low pressure side. They are suitable for vacuum applications requiring low pulsation and high continuous flow. However, they are not suitable for use with grinding media.
There are many types of vacuum pumps and it is important to choose the right one for your application. The type of pump depends on the needs and purpose of the system. The larger ones can work continuously, and the smaller ones are more suitable for intermittent use.
Vacuum Pump


Vacuum pumps are used in a variety of industrial and scientific processes. For example, they are used in the production of vacuum tubes, CRTs, and electric lamps. They are also used in semiconductor processing. Vacuum pumps are also used as mechanical supports for other equipment. For example, there may be multiple vacuum pumps on the engine of a motor vehicle that powers the hydraulic components of an aircraft. In addition, they are often used in fusion research.
The most common type of vacuum pump used in the laboratory is the rotary vane pump. It works by directing airflow through a series of rotating blades in a circular housing. As the blades pass through the casing, they remove gas from the cavity and create a vacuum. Rotary pumps are usually single or double-stage and can handle pressures between 10 and 6 bar. It also has a high pumping speed.
Vacuum pumps are also used to fabricate solar cells on wafers. This involves a range of processes including doping, diffusion, dry etching, plasma-enhanced chemical vapor deposition, and bulk powder generation. These applications depend on the type of vacuum pump used in the process, and the vacuum pump chosen should be designed for the environment.
While there are several types of vacuum pumps available, their basic working principles remain the same. Each has different functions and capacities, depending on the type of vacuum. Generally divided into positive displacement pump, rotary vane pump, liquid ring pump, and molecular delivery pump.


The party responsible for general maintenance and repairs is the Principal Investigator (PI). Agknxs must be followed and approved by the PI and other relevant laboratory personnel. The Agknx provides guidelines for routine maintenance of vacuum pump equipment. Agknxs are not intended to replace detailed routine inspections of vacuum pump equipment, which should be performed by certified/qualified service personnel. If the device fails, the user should contact PI or RP for assistance.
First, check the vacuum pump for any loose parts. Make sure the inlet and outlet pressure gauges are open. When the proper pressure is shown, open the gate valve. Also, check the vacuum pump head and flow. Flow and head should be within the range indicated on the label. Bearing temperature should be within 35°F and maximum temperature should not exceed 80°F. The vacuum pump bushing should be replaced when it is severely worn.
If the vacuum pump has experienced several abnormal operating conditions, a performance test should be performed. Results should be compared to reference values ​​to identify abnormalities. To avoid premature pump failure, a systematic approach to predictive maintenance is essential. This is a relatively new area in the semiconductor industry, but leading semiconductor companies and major vacuum pump suppliers have yet to develop a consistent approach.
A simplified pump-down test method is proposed to evaluate the performance of vacuum pumps. The method includes simulated aeration field tests and four pump performance indicators. Performance metrics are evaluated under gas-loaded, idle, and gas-load-dependent test conditions.
Vacuum Pump


The total cost of a vacuum pump consists of two main components: the initial investment and ongoing maintenance costs. The latter is the most expensive component, as it consumes about four to five times the initial investment. Therefore, choosing a more energy-efficient model is a good way to reduce the total system cost and payback period.
The initial cost of a vacuum pump is about $786. Oil-lubricated rotary vane pumps are the cheapest, while oil-free rotary vane pumps are slightly more expensive. Non-contact pumps also cost slightly more. The cost of a vacuum pump is not high, but it is a factor that needs careful consideration.
When choosing a vacuum pump, it is important to consider the type of gas being pumped. Some pumps are only suitable for pumping air, while others are designed to pump helium. Oil-free air has a different pumping rate profile than air. Therefore, you need to consider the characteristics of the medium to ensure that the pump meets your requirements. The cost of a vacuum pump can be much higher than the purchase price, as the daily running and maintenance costs can be much higher.
Lubricated vacuum pumps tend to be more durable and less expensive, but they may require more maintenance. Maintenance costs will depend on the type of gas that needs to be pumped. Lighter gases need to be pumped slowly, while heavier gases need to be pumped faster. The maintenance level of a vacuum pump also depends on how often it needs to be lubricated.
Diaphragm vacuum pumps require regular maintenance and oil changes. The oil in the diaphragm pump should be changed every 3000 hours of use. The pump is also resistant to chemicals and corrosion. Therefore, it can be used in acidic and viscous products.

China Custom Complete Heads Sewage Pump Centrifugal Vacuum Pump Sewage Water Pump with Float Switch   vacuum pump design		China Custom Complete Heads Sewage Pump Centrifugal Vacuum Pump Sewage Water Pump with Float Switch   vacuum pump design
editor by Dream 2024-04-26