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Having 26 series -312 varieties - over 1000 pump models
Focused on water pump research and development manufacturing for 36 years
Free training for operation and maintenance personnel/free installation guidance/free provision of installation drawings
ISW Horizontal Pipeline Centrifugal Pump
Traffic: 1–1500 m³/h
Head: 7-150m
Power: 0.18-2500kw
Efficiency: 19%–84%
Pump weight: 17-2200kg
Cavitation margin: 2.0-6.0m
Price: 0.15–2.98 ten thousand
The ISW horizontal centrifugal pump is a variable-frequency, horizontal, single-stage, single-suction pipeline centrifugal pump. Designed and manufactured by Zhonglian Pump Industry—a pipeline pump manufacturer—this pump combines the unique structural features of the IS-type centrifugal pump and vertical pumps. It is developed in strict accordance with the international standard ISO 2858 and the national pipeline centrifugal pump standard JB/T 53058-93, representing a new generation of energy-saving and environmentally friendly horizontal centrifugal pipeline pumps. This pump features an optimized hydraulic model based on advanced domestic technology. The ISW pipeline centrifugal pump is also tailored to specific requirements such as operating temperature and medium characteristics.
Hotline:
Pipeline pump
Horizontal Single-Stage Fire Pump
Product Parameters
Operating Conditions and Model Designations for ISW Horizontal Pipeline Centrifugal Pumps:
1. For horizontal pipeline pumps, the suction pressure shall not exceed 1.0 MPa, or the maximum working pressure of the pump system shall not exceed 1.6 MPa—i.e., the sum of the pump inlet pressure and the pump head shall not exceed 1.6 MPa. The static pressure test pressure for the pump is 2.5 MPa. Please specify the system’s working pressure when placing your order. If the pump system’s working pressure exceeds 1.6 MPa, this should be explicitly stated at the time of ordering so that the pump’s flow passages and connecting parts can be made of cast steel during manufacturing.
2. Ambient temperature < 40℃, relative humidity < 95%.
3. The volume content of solid particles in the conveyed medium shall not exceed 0.1% per unit volume, and the particle size shall be less than 0.2 mm.
Note: If the medium contains fine particles, please specify this when placing your order so that a wear-resistant mechanical seal can be used.
Application of ISW Horizontal Pipeline Centrifugal Pump:
1. The ISW horizontal pipeline pump is designed for conveying clean water and other liquids with physical and chemical properties similar to those of clean water. It is suitable for industrial and municipal water supply and drainage, pressurized water delivery in high-rise buildings, garden irrigation, fire-fighting boosting, and equipment integration. The operating temperature T shall not exceed 80℃.
2. The ISWR (WRG)-type hot water (high-temperature) circulating pump is widely used in applications such as boiler high-temperature hot water boosting and circulation in energy, metallurgy, chemical industry, textile, papermaking, hotels, and restaurants, as well as in urban heating systems. The ISWR model has a maximum operating temperature T of ≤120℃, while the WRG model has a maximum operating temperature T of ≤240℃.
3. The ISWH horizontal chemical pump is designed for conveying liquids that are free of solid particles, corrosive, and have a viscosity similar to water. It is suitable for use in industries such as petroleum, chemical engineering, metallurgy, power generation, papermaking, food processing, pharmaceuticals, and synthetic fibers. The operating temperature range is T: -20℃ to 120℃.
4. The ISWB horizontal oil pump is designed for conveying petroleum products such as gasoline, diesel, and kerosene, with an operating temperature range of T: -20℃ to 120℃.
Structural Diagram and Structural Features of the ISW Horizontal Pipeline Centrifugal Pump:
1 Base 2 Drain Hole 3 Pump Body 4 Impeller 5 Pressure-Taking Hole 6 Mechanical Seal 7 Water-Blocking Ring 8 End Cover 9 Motor 10 Shaft
The structural diagram of the horizontal pipeline pump is shown in the figure. This unit consists of three main components: the pump, the motor, and the base. The pump’s structure includes parts such as the pump body, impeller, pump cover, and mechanical seal. The pump is a single-stage, single-suction, horizontal centrifugal pump. The pump body and pump cover are split along the back side of the impeller, giving it a rear-opening design. Most pumps are equipped with sealing rings both at the front and back of the impeller, and a balance hole is provided on the back cover plate of the impeller to counterbalance the axial forces acting on the rotor. The pump’s inlet is designed for axial, horizontal suction, while the outlet is arranged vertically upward. The pump and motor share the same shaft; the motor shaft end features a double angular-contact ball bearing arrangement that can partially balance any residual axial forces in the pump. The pump is directly coupled to the motor, eliminating the need for alignment during installation. Both the pump and motor have a common base and are vibration-isolated using JG-type vibration dampers.
Structural features of horizontal pipeline pumps:
1. Smooth Operation: The pump shaft’s absolute concentricity and the impeller’s excellent dynamic and static balance ensure smooth operation with absolutely no vibration.
2. Leak-proof: Hard alloy seals made of different materials ensure that there is no leakage regardless of the medium being conveyed.
3. Low Noise: The pump, equipped with two low-noise bearings, operates smoothly with virtually no noise except for a faint hum from the motor.
4. Low failure rate: The structure is simple and well-designed, with key components sourced from world-class suppliers, significantly extending the machine’s trouble-free operating time.
5. Easy maintenance: Replacing seals and bearings is simple and convenient.
6. More space-efficient: The outlet can be directed to the left, right, or upward, making pipe layout and installation more convenient and saving space.
Horizontal Pipeline Centrifugal Pump Maintenance and Servicing:
(1) Maintenance and upkeep of horizontal pipeline pumps during operation:
1. The inlet pipeline must be highly sealed.
2. Pumps are prohibited from operating for extended periods under cavitation conditions.
3. It is prohibited for the motor to operate under overcurrent conditions for an extended period when the pump is running at high flow rates.
4. Regularly check the motor current value during pump operation and strive to ensure the pump operates under standard conditions.
5. During operation, the pump should be supervised by a dedicated person to prevent accidents.
6. The bearings should be lubricated every 500 hours of pump operation. For motors with a power rating greater than 11 kW, a lubrication device is provided, allowing direct injection using a high-pressure grease gun to ensure excellent bearing lubrication.
7. After the pump has been in long-term operation, if mechanical wear causes increased noise and vibration in the unit, the pump should be stopped for inspection. If necessary, worn parts and bearings can be replaced. The general overhaul period for the unit is one year.
(2) Maintenance and Servicing of Mechanical Seals for Horizontal Pipeline Pumps:
1. The lubrication for mechanical seals should be clean and free of solid particles.
2. It is strictly prohibited to operate mechanical seals under dry-grinding conditions.
3. Before starting, rotate the pump (or motor) several times to prevent sudden starting from causing the sealing ring to break or get damaged.
Startup, Operation, and Shutdown of Horizontal Pipeline Centrifugal Pumps:
(1) Starting and Operating the Horizontal Pipeline Pump:
1. Use your hand to rotate the motor’s fan blades; the impeller should not exhibit any jamming or rubbing, and should turn smoothly.
2. Manually turn the pump to allow lubricant to enter the mechanical seal faces.
3. Perform priming and air removal: Open the inlet valve to allow liquid to fully fill the pump chamber until the entire pipeline is completely filled with liquid, and ensure that the inlet pipeline remains tightly sealed.
4. Close the outlet valve to reduce the starting current.
5. Connect the power supply and press the start button to confirm the correct rotation direction; when viewed from the motor’s fan blade end, the rotation should be clockwise.
6. Gradually adjust the opening of the outlet valve to keep the pump operating as close as possible to its rated conditions.
7. During operation, if you notice any noise or unusual sounds, stop the pump immediately and perform an inspection.
8. The leakage of a standard mechanical seal should be less than 3 drops per minute. Check that the temperature rise at the motor and bearing locations is below 70℃; if it exceeds this value, the cause should be investigated.
(2) Shutdown of horizontal pipeline pumps:
1. Close the discharge pipeline valve.
2. Cut off the power supply and stop the motor from running.
3. Close the inlet valve.
4. If the pump is to be left idle for an extended period, all liquid inside the pump should be drained out.
ISW Horizontal Pipeline Centrifugal Pump Model Parameters:
ISW25-110 | ISW50-250A | ISW80-250A | ISW150-250B | ISW250-250(I)A |
ISW25-125A | ISW50-250B | ISW80-250B | ISW150-250 | ISW250-250(I) |
ISW25-125 | ISW50-250 | ISW80-250 | ISW150-315(I)A | ISW250-250 |
ISW25-160A | ISW50-315(I)A | ISW80-315(I)A | ISW150-315(I)B | ISW250-300 |
ISW25-160 | ISW50-315(I)B | ISW80-315(I)B | ISW150-315(I) | ISW250-315A |
ISW32-100 | ISW50-315(I) | ISW80-315(I)C | ISW150-315A | ISW250-315B |
ISW32-125A | ISW65-100(I)A | ISW80-315(I) | ISW150-315B | ISW250-315 |
ISW32-125 | ISW65-100(I) | ISW80-315A | ISW150-315 | ISW250-400A |
ISW32-160A | ISW65-100A | ISW80-315B | ISW150-350A | ISW250-400B |
ISW32-160 | ISW65-100 | ISW80-315C | ISW150-350B | ISW250-400 |
ISW32-200A | ISW65-125(I)A | ISW80-315 | ISW150-350 | ISW250-500A |
ISW32-200 | ISW65-125(I) | ISW80-350A | ISW150-400A | ISW250-500B |
ISW40-100(I)A | ISW65-125A | ISW80-350B | ISW150-400B | ISW250-500C |
ISW40-100(I) | ISW65-125 | ISW80-350 | ISW150-400C | ISW250-500 |
ISW40-100A | ISW65-160(I)A | ISW100-100A | ISW150-400 | ISW300-235A |
ISW40-100 | ISW65-160(I)B | ISW100-100 | ISW150-500 | ISW300-235B |
ISW40-125(I)A | ISW65-160(I) | ISW100-125A | ISW200-200(I)A | ISW300-235 |
ISW40-125(I) | ISW65-160A | ISW100-125 | ISW200-200(I) | ISW300-250A |
ISW40-125A | ISW65-160B | ISW100-160A | ISW200-200A | ISW300-250 |
ISW40-125 | ISW65-160 | ISW100-160B | ISW200-200GA | ISW300-300A |
ISW40-160(I)A | ISW65-200(I)A | ISW100-160 | ISW200-200G | ISW300-300B |
ISW40-160(I)B | ISW65-200(I)B | ISW100-200A | ISW200-200 | ISW300-300 |
ISW40-160(I) | ISW65-200(I) | ISW100-200B | ISW200-250(I)A | ISW300-315A |
ISW40-160A | ISW65-200A | ISW100-200 | ISW200-250(I)B | ISW300-315B |
ISW40-160B | ISW65-200B | ISW100-250A | ISW200-250(I) | ISW300-315 |
ISW40-160 | ISW65-200 | ISW100-250B | ISW200-250A | ISW300-390A |
ISW40-200(I)A | ISW65-250(I)A | ISW100-250 | ISW200-250B | ISW300-390B |
ISW40-200(I)B | ISW65-250(I)B | ISW100-315A | ISW200-250GA | ISW300-390 |
ISW40-200(I) | ISW65-250(I) | ISW100-315B | ISW200-250GB | ISW300-400A |
ISW40-200A | ISW65-250A | ISW100-315 | ISW200-250G | ISW300-400 |
ISW40-200B | ISW65-250B | ISW100-350A | ISW200-250 | ISW300-500A |
ISW40-200 | ISW65-250 | ISW100-350B | ISW200-315(I)A | ISW300-500B |
ISW40-250(I)A | ISW65-315(I)A | ISW100-350 | ISW200-315(I)B | ISW300-500C |
ISW40-250(I)B | ISW65-315(I)B | ISW125-100A | ISW200-315(I) | ISW300-500 |
ISW40-250(I) | ISW65-315(I) | ISW125-100 | ISW200-315A | ISW350-235 |
ISW40-250A | ISW65-315A | ISW125-125A | ISW200-315B | ISW350-300 |
ISW40-250B | ISW65-315B | ISW125-125 | ISW200-315GA | ISW350-315 |
ISW40-250 | ISW65-315 | ISW125-160A | ISW200-315GB | ISW350-400 |
ISW50-100(I)A | ISW80-100(I)A | ISW125-160B | ISW200-315G | ISW350-450A |
ISW50-100(I) | ISW80-100(I) | ISW125-160 | ISW200-315 | ISW350-450 |
ISW50-100A | ISW80-100A | ISW125-200A | ISW200-400(I)A | ISW350-500 |
ISW50-100 | ISW80-100 | ISW125-200B | ISW200-400(I)B | ISW350-525A |
ISW50-125(I)A | ISW80-125(I)A | ISW125-200 | ISW200-400(I)C | ISW350-525B |
ISW50-125(I) | ISW80-125(I) | ISW125-250A | ISW200-400(I) | ISW350-525 |
ISW50-125A | ISW80-125A | ISW125-250B | ISW200-400A | ISW350-600A |
ISW50-125 | ISW80-125 | ISW125-250 | ISW200-400B | ISW350-600B |
ISW50-160(I)A | ISW80-160(I)A | ISW125-315A | ISW200-400C | ISW350-600 |
ISW50-160(I)B | ISW80-160(I)B | ISW125-315B | ISW200-400GA | ISW400-300 |
ISW50-160(I) | ISW80-160(I) | ISW125-315 | ISW200-400GB | ISW400-315 |
ISW50-160A | ISW80-160A | ISW150-125A | ISW200-400GC | ISW400-450A |
ISW50-160B | ISW80-160B | ISW150-125 | ISW200-400G | ISW400-450 |
ISW50-160 | ISW80-160 | ISW150-160A | ISW200-400 | ISW400-500A |
ISW50-200(I)A | ISW80-200(I)A | ISW150-160B | ISW200-500(I)A | ISW400-500B |
ISW50-200(I)B | ISW80-200(I)B | ISW150-160 | ISW200-500(I)B | ISW400-500 |
ISW50-200(I) | ISW80-200(I) | ISW150-200A | ISW200-500(I)C | ISW400-600A |
ISW50-200A | ISW80-200A | ISW150-200B | ISW200-500(I) | ISW400-600B |
ISW50-200B | ISW80-200B | ISW150-200 | ISW200-500GA | ISW400-600C |
ISW50-200 | ISW80-200 | ISW150-250(I)A | ISW200-500GB | ISW400-600 |
ISW50-250(I)A | ISW80-250(I)A | ISW150-250(I)B | ISW200-500GC | ISW500-300 |
ISW50-250(I)B | ISW80-250(I)B | ISW150-250(I) | ISW200-500G | ISW500-315 |
ISW50-250(I) | ISW80-250(I) | ISW150-250A | ISW250-235 |
Friendly reminder: Click on the model above to view detailed specifications and performance curves. For more parameters, please visit the pump selection page directly.
Why choose us?
Changsha Zhonghlian Pump Industry Co., Ltd. was founded in 1989 and was independently established after the restructuring of Changsha Water Pump Factory. It is a comprehensive national high-tech enterprise integrating design, research and development, manufacturing, and service. The company was listed on the Hunan Provincial Equity Exchange on December 31, 2019, with the abbreviation "Zhonghlian Pump Industry" and the equity code: 600275HN. It is currently a key backbone enterprise in China's centrifugal pump industry and one of the major professional manufacturers of multi-stage pumps in the country. The headquarters is located in Changsha City, Hunan Province, a historical and cultural city in China.
Square meters of land area
100% factory pass rate
Square meters of land area
100% factory pass rate
Q
What is your typical delivery time?
A
Models in stock can be shipped the next day at the latest. All others are custom-made, with lead times generally ranging from 7 to 90 days depending on the product size and project specifics. Please contact our sales manager for details: 0731-88632200 。
Q
Do you have centrifugal pumps in stock?
A
Centrifugal pumps come in numerous models and configurations. Except for a small number of high-volume, standard models that are in stock, the vast majority are not stocked and are customized products. We need to select a pump based on your site's flow rate, head, media temperature, pH value, and installation conditions, etc., to determine the pump model and configuration before we can submit an order to the factory for production.
Q
What information should I provide when requesting a quote?
A
Generally, to obtain an accurate quotation, we recommend providing us with the following information: pump flow rate, head, on-site operating voltage and frequency, temperature, pH value, and solid particle content of the fluid being conveyed, and on-site installation conditions (horizontal or vertical installation), etc.
If you are not sure, don't worry, our business managers will assist you in determining this.
Q
What products do you mainly produce?
A
Zhonglian Pump Industry manufactures various large industrial centrifugal pumps. Main products include: self-balancing multi-stage pumps, multi-stage centrifugal pumps, single-stage centrifugal pumps, split-case pumps, chemical pumps, submersible pumps, pipeline pumps, long-shaft pumps, condensate pumps, etc.
Q
Why is it so slow to get a price quote?
A
Because centrifugal pumps are non-standard customized products with many models, the price range is also very large. Even for the same model, the price difference is also very large due to different materials and configurations. Taking the most common water pump accessory—the impeller—as an example, the price of a stainless steel impeller is several times that of a cast iron impeller. Therefore, we need to clarify the relevant information to give you an accurate price. Normally, if you provide relatively comprehensive information, we can quote within 5 minutes.
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Hotline:
+86 0731-88632200
Export Trade/Technical Support:
+86 153-4831-2290
Head Office Email:
zoomlian@yeah.net
No. 210, Huanbao Zhong Road, Yuhua District, Changsha City, Hunan Province, Leowoju Wisdom Valley Building B, 8th Floor
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