The BF-type corrosion-resistant chemical pump is a horizontal, single-stage, single-suction, cantilevered corrosion-resistant centrifugal chemical pump. Drawing on the features of various corrosion-resistant pumps from the 1990s, Zhonglian Pump Industry—a leading chemical pump manufacturer—has incorporated advanced hydraulic models, innovative structural designs, and high-strength combined single- and double-end-face mechanical seals into this pump. It boasts advantages such as high efficiency and energy savings, compact structure, stable performance, and reliable operation.

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Chemical pump

keyword：

Horizontal Single-Stage Fire Pump

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Product overview Product parameters Why choose us? Frequently Asked Questions

Product Overview

　　The BF-type corrosion-resistant chemical pump is a horizontal, single-stage, single-suction, cantilevered corrosion-resistant centrifugal chemical pump. It has been developed by Zhonglian Pump Industry by drawing on the features of various corrosion-resistant pumps from the 1990s, adopting advanced hydraulic models, innovative structural designs, and high-strength combined single- and double-end-face mechanical seals. This pump boasts advantages such as high efficiency and energy savings, compact structure, stable performance, and reliable operation.

BF-type corrosion-resistant chemical pump

　　The BF-type corrosion-resistant single-stage, single-suction chemical pump is suitable for conveying corrosive liquids that do not contain solid particles. The temperature of the medium being conveyed ranges from -40℃ to 105℃. With a dual-face sealing cooling system, this pump can also handle high-temperature media with temperatures up to 300℃.

　　The BF-type corrosion-resistant single-stage, single-suction chemical pump is entirely designed and optimized using computer-aided methods. The company boasts strong technical expertise, extensive manufacturing experience, and comprehensive testing facilities, thereby ensuring the consistent reliability of product quality.

Product Parameters

Technical Parameters and Model Significance of BF-Type Corrosion-Resistant Single-Stage Single-Suction Chemical Centrifugal Pumps

　　Flow rate: 2–191 m³/h;

　　Head: 5.2–70 m;

　　Rotational speed: 980/1480/2980 rpm;

　　Power: 0.75–75 kW;

　　Import diameter: 25–150 mm;

　　Maximum working pressure: 2.0 MPa.

　　Model description example: 100FB-37A

　　100 - Pump suction diameter (mm)

　　F—Single-suction, single-stage, cantilevered corrosion-resistant chemical pump

　　The flow parts of the B pump that come into contact with the conveyed medium are made of stainless steel 1Cr18Ni9Ti.

　　37 - Pump design point head value (m)

　　A—First cutting of the impeller outer diameter.

Structural Description of the BF Type Corrosion-Resistant Single-Stage Single-Suction Chemical Centrifugal Pump

Structural Diagram of BF-Type Corrosion-Resistant Chemical Pump

　　The rotation direction of a single-stage, single-suction chemical pump is clockwise when viewed from the suction inlet toward the motor end.

　　The single-stage, single-suction chemical pump and the motor are mounted on the same base via an elastic coupling.

　　The shaft seal assembly of the single-stage, single-suction chemical pump adopts a new structure featuring a secondary impeller for pressure reduction and a double-face mechanical seal. The sealing cavity is filled with high-quality calcium-based grease and is equipped with an oil cup.

Application of BF Type Corrosion-Resistant Single-Stage Single-Suction Chemical Centrifugal Pump

　　The FB-type corrosion-resistant chemical pump is widely used in sectors such as chemical industry, petroleum, metallurgy, light industry, synthetic fibers, environmental protection, food, and pharmaceuticals. This product series features a double-end-face mechanical seal, which plays a significant role in enhancing product quality, reducing leakage, preventing contamination, and improving the environment. It boasts advantages including stable and reliable performance, excellent sealing performance, attractive design, and convenient operation and maintenance.

Installation and Removal of Corrosion-Resistant Chemical Pumps

　　1. Before installing the mechanical seal, check whether all components are damaged. If any components are damaged, they should be repaired or replaced.

　　2. Strictly inspect the friction surfaces of the rotating ring and the stationary ring; there must be absolutely no slightest scratches or blemishes from impact. Before assembly, apply a thin layer of clean machine oil to the end faces of both the rotating ring and the stationary ring.

　　3. During assembly, pay attention to eliminating deviations and properly adjusting the spring compression to ensure it is neither too loose nor too tight. When tightening the fastening screws, apply even pressure to avoid skewing, which could lead to sealing failure.

　　4. When disassembling, pay attention to the correct disassembly sequence of the pump.

Instructions for Use of Corrosion-Resistant Chemical Pumps

　　Start:

　　1. Prepare the necessary wrenches and tools.

　　2. Check whether grease has been added to the oil cup of the sealing device.

　　3. Check whether the rotation direction of the corrosion-resistant chemical pump is correct. Reversing the rotation is strictly prohibited, as a wrong rotation direction can cause the impeller nut to loosen, allowing corrosive media to enter the shaft neck and induce corrosion, ultimately rendering the pump inoperable. It could also cause the impeller nut to fly off, leading to a serious accident. Before starting the pump, be sure to cover the coupling properly to ensure safe operation.

　　4. When the pump is installed at a position lower than the liquid level (in backflow conditions), before starting the pump, open the gate valve on the pipeline to ensure that the pump is completely filled with liquid. If the pump is installed at a position higher than the liquid level (in vacuum conditions), before starting the pump, you must prime the pump and bleed air to ensure that both the pump itself and the suction pipeline are fully filled with liquid and all air is expelled from the pump.

　　5. After starting the motor, slowly open the discharge outlet gate valve. Once the pump is running normally, gradually open the valve to the desired degree.

　　Stop:

　　1. Close the gate valve on the pressure pipeline.

　　2. Stop the motor.

　　3. Close the gate valve on the suction pipeline.

　　4. When the ambient temperature falls below the liquid’s freezing point, drain all the liquid remaining in the pump.

　　5. If the corrosion-resistant chemical pump is to be left idle for an extended period, the corrosive medium inside the pump should be drained completely and the pump should then be thoroughly rinsed with clean water. After cleaning, the pump must be properly stored.

　　Operation:

　　1. The temperature rise of the pump and motor should be checked regularly, with particular attention paid to the bearing temperature rise. The bearing temperature must not exceed 73°C.

　　2. During operation, if you detect any noise or other abnormal sounds, immediately stop the machine for inspection and resume operation only after troubleshooting and resolving the issue.

　　3. Pay attention to the oil cup of the sealing device—ensure it remains filled with oil and replenish it promptly to guarantee proper lubrication.

　　4. Mechanical seals should be used in clean media free of suspended particles. Therefore, special attention must be paid to cleaning the piping system when installing a new pipeline system.

Friendly reminder: For performance parameters of the BF-type corrosion-resistant single-stage single-suction chemical centrifugal pump, please click on the → [Pump Selection] page to view.

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.

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+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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