Products Description
The end suction centrifugal pump for construction IS type horizontal centrifugal pump is a single-stage single-suction centrifugal pump, mainly used in fields such as agricultural irrigation, papermaking, urban water supply, and fire protection projects. It is designed to convey clear water-like liquids without solid particles and adopts a packing seal structure. It can be replaced with a mechanical seal as needed.
The end suction centrifugal pump for construction pump consists of a pump body, motor, base, coupling, and anchor bolts, forming an integrated structure. The coupling realizes the connection between the motor and the pump body, and the base is fixed to the foundation by the anchor bolts. The basic parameters include a maximum flow rate of 173 m³/h, a head of 60 meters, a motor power of 45 kw, and a rotational speed of 2900 r/min. It is suitable for medium and high head liquid transportation scenarios.
This end suction centrifugal pump for construction type of centrifugal pump is suitable for transporting clear water-like liquids without solid particle impurities. The sealing method is a packing seal. Under special circumstances, it can be changed to a mechanical seal.
The IS type horizontal centrifugal pump is mainly composed of the pump body, motor, base, coupling, and anchor bolts. The motor is connected to the pump through the coupling, and the anchor bolts fix the entire pump on the foundation.
Product structure
1. The IS centrifugal water pump is designed according to the performance and dimensions specified in the standard 2858. It mainly consists of the pump body, pump cover, impeller, shaft, sealing ring, shaft sleeve and suspension bearings, etc.
2. The casing (i.e., the pump body and pump cover) of the IS centrifugal water pump forms the working chamber of the pump. The impeller, shaft and rolling bearings are the rotor of the pump. The suspension bearing components support the rotor part of the pump, and the rolling bearings bear the radial and axial forces of the pump.
3. The pump body and pump cover part of the IS centrifugal water pump are separated from the back of the impeller, that is, the so-called rear-opening structure. The advantages of the pipeline centrifugal pump are that it is convenient for maintenance. During maintenance, the pump body, suction pipeline, discharge pipeline and motor do not need to be moved. Just remove the intermediate connecting piece of the extended coupling to withdraw the rotor part for maintenance.
4. The axial sealing ring of the IS centrifugal water pump is composed of the packing cover, packing ring and packing, etc. It is used to prevent air intake or excessive water leakage. If the impeller of the IS pump has balance, the cavity with soft packing and the impeller suction inlet are connected. If the liquid at the impeller inlet is in a vacuum state, it is easy to enter the pump through the surface of the shaft sleeve. Therefore, a packing ring is installed in the packing cavity through the small hole on the pump cover to guide the pressure water in the pump chamber to the packing ring for sealing. If the impeller of the pump does not have a balance hole, since the liquid pressure at the back of the impeller is greater than the atmospheric pressure, there is no problem of air leakage. Therefore, a packing ring does not need to be installed.
5. To avoid shaft wear, an O-ring seal is installed on the part of the shaft passing through the packing cavity. There is an O-ring seal between the shaft sleeve and the shaft to prevent air intake or water leakage along the mating surface.
6. The transmission method of the IS centrifugal water pump is connected to the motor through an extended elastic coupling. The rotation direction of the pump, from the driving end, is clockwise rotation.
7. To balance the axial force of the pump, most of the impellers of the IS centrifugal water pumps have sealing rings on both the front and back, and a balance hole is provided on the rear cover plate of the impeller. Since the axial force of some pumps is not large, no sealing ring and balance hole are provided at the back of the impeller.
Application scenario
Industrial wastewater
Suitable for wastewater discharge in chemical plants and construction sites, it features corrosion resistance and a compact structure. It can be installed quickly and operate stably.
Water treatment
It is commonly used in sewage treatment plants or industrial water treatment systems. When dealing with water bodies containing impurities, its filtration device can intercept the impurities and ensure the stable operation of the pump.
Clear water transportation
In scenarios such as municipal water supply and irrigation systems, this pump efficiently converts kinetic energy through its impeller to transport clean water.
Energy-saving optimization
Some models adopt double suction structure or modular design, which can reduce energy consumption by approximately 15% - 20% compared to traditional pumps. They are particularly suitable for medium and small flow rates (≤ 500 m³/h) and medium to low head (≤ 125 m) conditions.
Special conditions
The stainless steel version can be applied in food-grade or chemical-grade scenarios, such as beverage production, transportation of acidic and alkaline liquids, etc., for the transmission of corrosive media.
Product parameters
| Product name | Clean water pump |
| Color | Customized Color |
| Material | Brass/Cast iron/stainless steel/Customized |
| Head | 4.6-200m/Customized |
| Speed | 1450-2900r/min/Customized |
| Capacity | 3.8-1200m³/h/Customized |
| Maximum temperature of conveyed liquid |
150°℃/Customized |
| Structure | Horizontal single stage centrifugal pump |
| Advantage | Wearresistant,corrosionresistant,energysaving,easy to install maintain |
| Applicaion scope | heating cooling cycle boosting,Industrial,urban,chemical,firefighting |
FAQ
01.How to select the type of horizontal centrifugal pump?
Flow (Q): Flow refers to the volume of liquid that the pump transports in a unit of time. Based on the actual system requirements, determine the required flow to select the appropriate pump type.
Head (H): Head is the energy provided by the pump, indicating the height that the pump lifts the liquid under the unit gravitational acceleration. Based on the conveying height of the system and the pipeline resistance, determine the required head.
Working pressure: Consider the system working pressure and the maximum working pressure of the pump to ensure that the pump does not exceed the design pressure during normal operation.
Liquid properties: The density, viscosity, and corrosiveness of the liquid will all affect the pump selection. For different liquid properties, select the corresponding pump materials and structures.
Operating conditions: Consider the working temperature, ambient temperature, and altitude of the pump, to ensure that the pump can operate normally under the actual operating conditions.
Efficiency: The efficiency of the pump is the ratio of the output power to the input power. When selecting, try to choose pumps with higher efficiency to reduce energy consumption and operating costs.
Installation and maintenance: Based on the on-site installation conditions, select the appropriate pump type and installation method. At the same time, consider the ease of pump maintenance to reduce maintenance costs.
Brand and price: Under the premise of meeting the technical requirements, make a comprehensive comparison based on factors such as brand, price, and after-sales service to select the pump with better cost performance.
02.What are the differences between horizontal centrifugal pumps and vertical centrifugal pumps?
From the literal meaning, we can understand that a vertical centrifugal pump is a centrifugal pump with a vertical structure. Similarly, a horizontal centrifugal pump is also a centrifugal pump with a horizontal structure.
II. Usage Differences:
Vertical centrifugal pump: It is used for transporting clear water and other liquids with physical and chemical properties similar to clear water. It is suitable for industrial and urban water supply, high-rise building booster water supply, garden sprinkling, fire booster, long-distance transportation, heating and ventilation refrigeration circulation, bathroom cold and hot water circulation booster and equipment matching. The operating temperature is T < 80℃.
Horizontal centrifugal pump: It is used for transporting liquids without solid particles, with corrosive properties, and with viscosity similar to water. It is suitable for petroleum, chemical, metallurgy, power, papermaking, food, pharmaceutical and synthetic fiber industries. The operating temperature is T: -20℃ to 120℃.
III. Connection Forms Differences:
Vertical pump has a bottom-up stacking connection form, while horizontal pump has a left-right longitudinal arrangement on the base.
IV. Floor Space Differences:
Since the vertical centrifugal pump has a vertical structure, in terms of floor space, the vertical pump does not require much space. While the horizontal centrifugal pump, due to its horizontal structure, has much larger floor space than the vertical pump.
V. Installation Forms Differences:
These two different structures of vertical and horizontal also lead to different installation methods. For example, the vertical pump is connected as a whole, and the installation is very simple. While the horizontal pump needs to be adjusted for accuracy after installation.
VI. Maintenance Difficulty Differences:
The maintenance of vertical pumps is difficult. For example, to repair the impeller, the upper part needs to be removed completely. While the horizontal pump is relatively easier. For example, for the IS type pump, the impeller can be repaired by removing the inlet pipe.
03.What situations do horizontal centrifugal pumps and vertical centrifugal pumps respectively apply to?
Horizontal centrifugal pump:
Structure: The main components (pump body, impeller, bearings, etc.) of the horizontal centrifugal pump are arranged horizontally, and the motor is connected to the pump through a coupling.
Floor space: It is relatively large because both the pump and the motor are placed horizontally.
Maintenance: Maintenance is relatively easy because the main components of the pump are easily accessible and can be disassembled.
Applicable scenarios: Horizontal centrifugal pumps are suitable for various industrial, municipal, and construction fields, especially in situations requiring large flow and head, such as water supply and drainage, fire protection, cooling, petrochemicals, etc.
Vertical centrifugal pump:
Structure: The main components (pump body, impeller, bearings, etc.) of the vertical centrifugal pump are arranged vertically, with the motor located above the pump.
Floor space: It is relatively small because both the pump and the motor are placed vertically, saving space.
Maintenance: Maintenance may be relatively difficult because the main components of the pump are located on the vertical axis and require special tools or equipment for disassembly.
Applicable scenarios: Vertical centrifugal pumps are suitable for spaces with limited space or where space savings are needed, as well as for situations requiring high head. Common applications include water supply for high-rise buildings, municipal water supply, industrial circulating cooling water systems, axial flow pumps, and mixed flow pumps, etc.
In summary, horizontal centrifugal pumps and vertical centrifugal pumps have their own advantages and disadvantages. The choice should be based on actual needs and site conditions.
04.What phenomena will occur if the regulating valve of a centrifugal pump gets stuck? How should it be operated?
The direct connection is of inverted S flow pattern, with complex flow paths and many dead zones in the upper and lower chambers, providing areas for the sedimentation of the medium. The angular connection, where the medium flows like passing through a 90-degree bend pipe, has good erosion characteristics and small dead zones, making it easy to be designed into a streamlined shape. Therefore, when a regulating valve causes a mild blockage, it can be changed to an angular valve for application.
2. Expand the clearance method of the throttle valve
If the medium contains solid particles or the erosion products from the pipeline, such as weld splices and rust, etc., which cannot pass through the throttle valve opening, causing blockage, jamming, and other common faults, the throttle valve with a large clearance can be used - the total area of the throttle valve is like a ventilated window or a valve core with an open mouth, with its total area concentrated rather than evenly distributed on the circle. Common faults can be easily removed by this method. If it is a single or double-seat valve, the valve core of the piston pump can be changed to a "V"-shaped mouth valve core, or it can be changed to a sleeve valve, etc.
3. Cleaning method
Weld splices, rust, and debris in the pipeline can cause blockage or jamming at the throttle valve opening, guiding position, and the balance hole wall of the lower valve cover, causing damage and scratches on the valve core's inclined surface, guiding surface, and protruding surface. This often occurs during the commissioning of new systems or the early stage of re-commissioning after maintenance. It is a common fault. In such cases, the valve must be disassembled for cleaning, removing the debris, and grinding the damaged protruding surface if necessary. At the same time, the bottom plug should be opened to flush out the debris that falls into the lower valve cover from the balance hole, and the pipeline should be cleaned. Before operation, fully open the regulating valve, allow the medium to flow for a period of time, and then return to normal operation.
4. Installation of pipeline filter method
For regulating valves with a certain diameter, especially those with very small flow regulation, the throttle valve clearance is very small. There should not be any debris in the medium. If there is a blockage due to such conditions, install a filter device on the pipeline before the throttle valve to ensure the smooth passage of the medium. For regulating valves with a positioning instrument, if the working of the positioning instrument is abnormal, the blockage of the hydraulic valve block at the throttle valve opening is a common fault. Therefore, when the positioning instrument is working, it is necessary to ensure the air source. The general method is to install a gas filter and pressure reducing valve in the air source pipeline in front of the positioning instrument.
5. Media erosion method
Using the erosion energy of the medium itself to erode and remove items that are prone to sedimentation and blockage, thereby improving the anti-blocking effect of the valve. Common methods include: changing to a flow-closed application; using a moving oil circuit plate; placing the throttle valve opening at the most erosive position, and this method requires special attention to improving the erosion resistance of the valve component materials.
6. External erosion method
For certain media that are prone to sedimentation and contain liquid particles, when adjusting the general valve, blockage often occurs at the throttle valve opening, guiding position, and the bottom plug of the valve cover. An external erosion gas and steam can be connected at the bottom plug of the valve cover. When the valve is blocked or jammed, open the external gas or steam valve to clean the valve without moving the regulating valve, so that the valve can operate normally.
The above six methods can basically solve the common blockage phenomenon of regulating valves in centrifugal pumps.
05.Can the outlet valve of a centrifugal pump be kept closed for a long time during operation?
Overheating: When the outlet valve of the centrifugal pump is closed, the liquid inside the pump cannot flow. This causes the liquid to continuously circulate, resulting in a gradual increase in temperature. If the temperature is too high, it may cause damage to the internal parts of the pump and even lead to accidents.
Increased wear: Due to the inability of the liquid inside the pump to flow, the impeller will continuously rotate in the same liquid, which may lead to accelerated wear of the impeller and other components.
Overload of the motor: When the outlet valve of the centrifugal pump is closed, the pump's head pressure increases, which may cause the motor to overload and affect its service life.
Excessive internal pressure in the cavity: Long-term closure of the outlet valve will cause the pressure inside the pump cavity to continuously rise, which may lead to severe accidents such as pump body rupture.
Therefore, during the operation of the centrifugal pump, it is advisable to avoid closing the outlet valve for an extended period. If it is necessary to adjust the output flow of the pump, it is recommended to use control devices such as frequency converters to achieve safer and more reliable pump operation.
06.What kind of valve should be installed on the outlet pipe of the centrifugal pump?
Our address
Baoding Cloud Center, Hebei, China
Phone Number/whatsapp
+86 18626366701
postmaster@jovidiapump.com
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