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

Hot water submersible pump for deep wells

Hot water submersible pump for deep wells

Traffic: 2-125 m³/h

Head: 15-260m

Power: 0.75-75kw

Pipe diameter: 40-200mm

Rotational speed: 2900r/min

Price: 0.071–61,500

Hot-water submersible pumps for deep wells are suitable for use in geothermal wells to extract geothermal water. Geothermal energy is an inexpensive and clean energy source that is widely utilized in heating, healthcare, bathing, aquaculture, agriculture, industrial and agricultural production, and recreational services. These hot-water submersible pumps, when submerged in geothermal wells, offer advantages such as heat resistance, corrosion resistance, high efficiency, energy savings, and ease of installation and maintenance—making them ideal for geothermal applications.

Hotline:

+86 0731-88632200

classification：

Submersible 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 hot-water submersible pump for deep wells is designed specifically for geothermal wells and is used to extract geothermal water. Geothermal energy is an inexpensive, clean energy source that is widely utilized in heating, medical treatments, bathing, aquaculture, agriculture, industrial and agricultural production, and recreational services. When submerged in a geothermal well, this hot-water submersible pump offers advantages such as heat resistance, corrosion resistance, high efficiency, energy savings, and ease of installation and maintenance—making it a next-generation replacement for conventional geothermal water extraction equipment. Moreover, the hot-water submersible pumps manufactured by our company can operate normally in hot-water environments up to 120°C, representing domestically advanced technology.

Deep-well submersible pump

The submersible deep-well hot-water pump is suitable for enterprises and institutions such as bathhouses, community heating systems, and companies that harness geothermal energy for power generation and extract high-temperature underground hot water. We offer various specifications and models to suit different well diameters, giving users a wide range of choices. This equipment features low noise levels, high efficiency, and energy savings.

Product Parameters

Technical Parameters and Operating Conditions for Hot Water Submersible Deep Well Pumps
Size: 6 inches – 12 inches
Flow rate: 5–600 cubic meters/hour
Head: 6–600 meters
Power: 3–250 kilowatts
Power supply: Voltage 380V ±5%, frequency 50Hz ±1 Hz, three-phase AC.
Production standards: NEMA standards, national standards, and enterprise standards.

Usage conditions:

1. The hot-water submersible pump is designed to operate on a three-phase AC power supply with a rated voltage of 380V ±5% and a frequency of 50Hz ±1%. The rated voltage at the motor terminals must remain within the allowable deviation range of the rated voltage.

2. The control cabinet must be equipped with basic protection functions such as short-circuit protection, phase-loss protection, overcurrent protection, and overload protection. Moreover, during installation, it is crucial to adjust the setpoints to positions that ensure stable operation and sensitive protection. This step is extremely important and must be properly calibrated by qualified technical personnel.
3. The motor is of the flush-type; before installation, the motor’s internal cavity must be completely filled with distilled water (or clean fresh water).
4. The impeller of the pump’s first stage must be submerged at least 3 meters below the dynamic water level. For electric pump units, the submergence below the static water level must not exceed 70 meters, and the bottom of the motor must be no less than 5 meters above the well bottom.
5. When selecting a model, the well diameter must match the pump model. Under no circumstances should you choose a pump with a smaller diameter for a well with a larger diameter—this would hinder the motor’s heat dissipation.
6. The water temperature should not exceed 120℃. (Temperatures above 120℃ require special customization.)
7. The water contains no oil substances.
8. Mineralization and Water Quality Specifications: (Key Specifications for Corrosive Substances)

Diagram of Material and Water Quality for Hot Water Deep Well Submersible Pumps

Material Selection and Structural Description for Hot Water Submersible Deep Well Pumps

1. Impeller: Cast iron or tin bronze.

2. Pump casing: Cast iron or stainless steel.

3. Pump shaft: Cold-drawn steel with chrome plating or stainless steel.

4. Motor seals: rubber seals, O-rings, mechanical seals. The motor expansion compensation bladder is made of rubber.

Structural Description:

The entire hot-water deep-well pump unit consists of a heat-resistant pump, a heat-resistant submersible motor, a piping system (including the lift pipe, pump base, and other components), a heat-resistant cable, a gate valve, and a control cabinet. The pump and motor are directly connected via a coupling and are submerged in geothermal water to operate.
1. The pump’s working section is the core of the unit. It consists of components such as an impeller, a middle casing, an upper casing, a pump shaft, bearings, an inlet nozzle, a check valve, and a valve body.
2. The submersible motor serves as the power source for the unit. It consists of components such as the stator, rotor, upper and lower guide bearings, thrust bearing, base, connecting frame, and sealing device.

Device advantages:

1: Careful assembly at the factory ensures quick and reliable installation on-site.
2: Employs either a single-stage impeller or multi-stage impellers connected in series, resulting in extremely low noise levels. It boasts excellent temperature resistance and a long service life.
3: The unit can operate completely submerged in water, thereby avoiding the drawback of vacuum pumps being prone to air intake and thus becoming ineffective.

Motor parameters:

Length of the submersible motor cable: 3 meters. If users require a longer cable, please call us in advance. The submersible motor is lubricated with clean water; before use, you must completely fill the motor cavity with clean, fresh water. (Note: Be sure to fill it completely—otherwise, the motor’s service life will be significantly reduced.) If you forget to add water, the motor will quickly burn out.

Motor protection rating: IPX8; the electromagnetic wire used is high-temperature and waterproof. The power supply is 380V, with a tolerance of no more than ±5%; the frequency is 50Hz, with a tolerance of no more than ±1%. If the customer requires a special voltage or special frequency, please inform us in advance.

Friendly reminder: For the performance parameters of hot-water submersible pumps, please click → [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.

BQS Series Mine-Proof Explosion-Proof Submersible Sewage and Sand-Removal Pump

High-temperature and high-pressure submersible pump

BQS Series Mine-Proof Explosion-Proof Submersible Sewage and Sand-Removal Pump

High-temperature and high-pressure submersible 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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