Changsha Zhonglian Pump Industry Co., Ltd.

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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

Self-balancing multistage pump

Multistage pump

Coal Mine Safety Certified Multi-stage Pump

Vertical multistage pump

Integrated pump station

Vacuum pump

Fire pump

Constant-pressure water supply equipment

Other pumps

Genuine accessories

IRG-type high-temperature vertical hot water pipeline pump

IRG-type high-temperature vertical hot water pipeline pump

Traffic: 1–1200 m³/h

Head: 8-150m

Power: 0.18-2500kw

Efficiency: 19%–84%

Pump weight: 17-2200kg

Cavitation margin: 2.0-6.0m

Price: 0.19–3.15 ten thousand

Hotline:

+86 0731-88632200

classification：

Pipeline pump

keyword：

Horizontal Single-Stage Fire Pump

Product consultation

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Product overview Product parameters Why choose us? Frequently Asked Questions

Product Overview

　　The IRG vertical hot-water pipeline pump series—single-stage, single-suction pipeline centrifugal pumps—belong to the high-temperature pump family. These pumps are jointly developed by our company’s technical staff and domestic pump experts, who have selected outstanding hydraulic models from China and adopted the performance parameters of IR-type centrifugal pumps. They are ingeniously designed and assembled based on conventional pipeline pumps. Furthermore, depending on different operating temperatures and media conditions, this series has been further refined into specialized pumps suitable for hot water, high-temperature applications, corrosive chemical environments, and oil pumping. This product series boasts advantages such as high efficiency, energy savings, low noise levels, and reliable performance. It complies with the standards set forth by the National Ministry of Machinery, JB/T53058-93. The products are designed and manufactured in accordance with the international ISO 2858 standard.

Product Parameters

Working Parameters and Model Designations for IRG Vertical Hot Water Pipeline Centrifugal Pumps:

　　1. The maximum working pressure of the IRG hot-water pipeline pump system shall be ≤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 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. The ambient temperature for the hot water pipeline pump should be below 40℃, and the relative humidity should be below 95%.

　　3. The solid particle volume content in the medium conveyed by the hot water pipeline pump shall not exceed 0.1% per unit volume, with particle sizes less than 0.2 mm.

　　Note: If the medium contains fine particles, please specify this when placing your order so that the manufacturer can equip the pump with a wear-resistant mechanical seal.

　　Model Description: IRG 50 160 (I) A(B)

　　IRG—IRG Single-Stage Single-Suction Pipeline Centrifugal Pump

　　50 —— Nominal diameter (mm) of pump inlet and outlet

　　160——Nominal outer diameter of the impeller (mm)

　　(I)——Traffic Classification

　　A(B)—The impeller has undergone its first cutting.

Meaning of ISG Type Hot Water Pipeline Pump Model

Application of IRG Vertical Hot Water Pipeline Centrifugal Pump:

　　The ISG-type pipeline centrifugal pump is designed for conveying clean water and other liquids whose physical and chemical properties are similar to those of clean water. It is suitable for industrial and municipal water supply and drainage, pressurized water delivery in high-rise buildings, landscape irrigation, fire-fighting boosting, long-distance water transportation, HVAC and refrigeration circulation, cold and hot water circulation boosting in bathrooms, and equipment配套. The operating temperature is T < 80℃.

　　The IRG-type high-temperature hot-water pipeline pump is widely applicable to applications such as boosting and circulating high-temperature hot water in boilers for energy, chemical, textile, paper-making industries, as well as hotels and restaurants, and also for circulating in urban heating systems. The IRG-type pump is suitable for operating temperatures T < 120℃. The GRG-type high-temperature hot-water pump is suitable for operating temperatures T < 240℃.

　　The IHG vertical chemical pipeline 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 and pharmaceuticals, and synthetic fibers. The operating temperature range is from -20℃ to 120℃.

　　The YG-type explosion-proof centrifugal pump and vertical centrifugal oil pump are designed for conveying petroleum products such as gasoline, kerosene, and diesel. The temperature of the medium being conveyed ranges from -20℃ to +120℃.

Features of the IRG Vertical Hot Water Pipeline Centrifugal Pump:

　　1. The hot-water pipeline pump features a vertical design with identical inlet and outlet diameters located on the same centerline, allowing it to be installed in pipelines just like a valve. It boasts a compact and aesthetically pleasing appearance, occupies a small footprint, and requires low initial construction investment. With the addition of a protective cover, it can even be used outdoors.

　　2. The impeller of the hot-water pipeline pump is directly mounted on the motor’s extended shaft, resulting in a short axial dimension and a compact structure. The pump and motor bearings are arranged reasonably, effectively and smoothly accommodating the radial and axial loads generated during pump operation, thereby ensuring stable pump performance with minimal vibration and low noise.

　　3. The shaft seal of the high-temperature pipeline pump uses tungsten carbide paired with materials such as graphite and hard alloy, effectively extending the service life of the mechanical seal.

　　4. The high-temperature pipeline pump is easy to install and maintain; there’s no need to disassemble the piping system. Simply remove the nut from the pump coupling base to extract the entire rotor assembly.

　　5. Pipeline pumps can be operated in series or parallel configurations according to the specific requirements of flow rate and head.

　　6. The pump can be installed vertically or horizontally according to the requirements of the piping layout.

Pump Instructions:

　　I. Preparations Before Starting:

　　1. Verify that the motor’s rotation direction is correct: when viewed from the top of the motor toward the pump, the rotation should be clockwise. The test duration should be brief to prevent dry friction and wear on the mechanical seal.

　　2. Open the exhaust valve to allow the liquid to fill the entire pump body. Once full, close the exhaust valve.

　　3. Before starting the IrG vertical centrifugal pump, check whether all components are functioning properly.

　　4. Manually turn the pump to allow lubricant to enter the mechanical seal faces.

　　5. For high-temperature applications, preheating is required first, with a heating rate of 50°C per hour to ensure uniform heating throughout all components.

　　II. Starting:

　　1. Fully open the inlet valve.

　　2. When starting a vertical centrifugal pump, close the discharge pipeline valve.

　　3. Motor: Observe whether the pump is operating correctly.

　　4. Check the shaft seal for leaks. Under normal conditions, mechanical seal leakage should be less than 3 drops per minute.

　　5. Check that the temperature rise at the motor and bearing locations is ≤70℃.

　　6. Adjust the opening of the outlet valve to achieve the desired operating conditions. If the user has installed a flow meter or pressure gauge at the pump outlet, adjust the outlet valve opening so that the pump operates at the rated point specified in the performance parameter table. Similarly, if the user has installed a flow meter or pressure gauge at the pump outlet, adjust the outlet valve opening and measure the motor current of the pump to ensure that the motor operates within its rated current range. Otherwise, the pump may run under overload conditions (i.e., with excessive current), potentially leading to motor burnout. The appropriate opening degree of the adjusted outlet valve depends on both the size of the valve and the pipeline operating conditions.

　　3. Parking:

　　1. Close the discharge pipeline valve.

　　2. Stop the motor.

　　3. When shutting down a vertical centrifugal pump, close the inlet valve.

　　4. If the pump is to be parked for an extended period, the liquid inside the pump should be drained completely.

　　5. For high-temperature types, first cool down; cooling rate:

Friendly reminder: For performance parameters, please refer directly to the pump selection page.

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.

41000 m²

Square meters of land area

100 %

100% factory pass rate

41000 m²

Square meters of land area

100 %

100% factory pass rate

What is your typical delivery time?

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 。

Do you have centrifugal pumps in stock?

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.

What information should I provide when requesting a quote?

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.

What products do you mainly produce?

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.

Could you help me with the selection?

Certainly! If the water pump model is not selected accurately, there will be big problems. If you choose a smaller one, it won't meet your needs; if you choose a larger one, it will waste electricity and fuel, increasing your costs.

Why is it so slow to get a price quote?

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.

IHG Vertical Chemical Pipeline Centrifugal Pump

IHW Horizontal Stainless Steel Pipeline Centrifugal Pump

IHG Vertical Chemical Pipeline Centrifugal Pump

IHW Horizontal Stainless Steel Pipeline Centrifugal Pump

+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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Self-balancing multistage pump

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Coal Mine Safety Certified Multi-stage Pump

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Constant-pressure water supply equipment

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