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DLR Vertical Pipeline Booster Hot Water Pump



classification:

Hot water pump

keyword:

Horizontal Single-Stage Fire Pump

Product overview Product parameters Why choose us? Frequently Asked Questions

Product Overview

  The DLR vertical pipeline booster hot-water pump is a vertical, single-suction, multistage, sectional centrifugal pump. Thanks to the adoption of the hydraulic model from the IS-type pump—a highly efficient and energy-saving product recommended by national standards—the DLR pump boasts high efficiency and an extensive performance range, better meeting user requirements. Structurally, it features a vertical, sectional design, ensuring safe and smooth operation, long service life, a compact footprint, and convenient installation and maintenance. This pump is equipped with a 4-pole motor running at 1,450 rpm; alternatively, it can be fitted with a 2-pole motor operating at 2,900 rpm. The pump is suitable for municipal water supply and centralized heating systems, and is designed to convey clean water or liquids with physical and chemical properties similar to those of clean water. The DL-type pump is applicable to media with temperatures below 80℃, while the DLR-type pump is suitable for media with temperatures below 150℃.

 Vertical Pipeline Booster Hot Water Pump

   The DLR vertical hot-water pipeline circulation pump is suitable for applications including industrial and municipal water supply and drainage, pressurized water delivery in high-rise buildings, fire-fighting booster systems, long-distance water conveyance, heating systems, bathroom applications, boosting and circulating cold and hot water in boilers, water supply for air-conditioning refrigeration systems, and equipment integration.

Product Parameters

Parameter Range and Model Description for DLR Vertical Pipeline Booster Hot Water Pumps:

  Flow rate Q: 4.9–200 m³/h; Head H: 21.6–239 m

  Model: 80DLR20×4

  80 - Inlet diameter (mm)

  20 - Single-stage head (m)

  DLR Vertical Multi-stage Segmented Hot Water Pipeline Pump

  Level 6-6

Structural Type and Features of the DLR Vertical Pipeline Booster Hot Water Pump:

 DLR Hot Water Pipe Circulation Pump Structural Diagram
 DLR Hot Water Pipe Booster Pump Installation Diagram

  The DLR-type hot-water pump features a vertical, multistage, sectional design. The suction section, middle section, and discharge section are tightly clamped together using bolts to form a single unit. Each stage of the pump is equipped with one impeller and one guide vane. The axial force of the pump is balanced through a specific balancing mechanism; any residual axial force is borne by a ball bearing lubricated with grease. The shaft seal can be configured either with soft packing or a mechanical seal.
The DLR pump is driven by a vertical electric motor via an elastic coupling. When viewed from the motor end, the pump rotates clockwise. The pump’s suction inlet is located at the bottom, while the discharge outlet is at the top. At the factory, the suction and discharge ports are installed at a 180° angle relative to each other (with the inlet and outlet aligned on the same axis). However, during installation, users can rotate the discharge section by 90°, 180°, or 270°, depending on the actual situation. To adjust the installation position of the discharge outlet, simply remove the tension bolts.

  Product features:

  1. Novel structure and reliable operation: The balance drum (disc) has been eliminated, and axial forces are hydraulically balanced, completely resolving the issues of easy rusting, seizing, and wear associated with traditional balance drums, thereby ensuring more reliable operation.
  2. Lower operating and maintenance costs: Utilizing a reliable mechanical seal with a low failure rate, it requires fewer operating and maintenance expenses.
  3. Smooth operation and low noise: This pump series features a low-speed motor, ensuring smooth operation and low noise levels.
  4. Unique components for noise reduction: The uniquely designed hydraulic components deliver excellent flow performance and minimize flow-induced noise to the greatest extent.

  Rotation direction: When viewed from the motor end, the pump rotates counterclockwise.

  The main components of the DLR-type hot water pipeline circulation pump include: the inlet section, the middle section, the outlet section, the motor base, the impeller, the guide vanes, the final-stage guide vanes, the shaft, the shaft sleeve, the sealing ring, the upper bearing, the lower bearing, and the retaining sleeve, among others.

  Complete set scope: Supply pumps and motors as a complete set.

 

Friendly reminder: For more performance parameters of the DLR vertical pipeline booster hot water pump, please click on the → [Pump Selection] page to view them.

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

Image Name

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

Could you help me with the selection?

A

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.

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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