-
Product
-
-
Service Policy
-
-
Blog
-
Join Us
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
DLR Vertical Multi-stage Hot Water Pipeline Pump
Traffic: 4.9 ~ 200 m³/h
Head: 21.6-239m
Power: 3-160kw
Efficiency: 50%-76%
Pump weight: 20-165kg
Cavitation margin: 2.1-5.5m
Price: 6,100–59,800
The DLR vertical multistage centrifugal pump for hot water pipelines is suitable for municipal water supply and centralized heating systems. It is used to convey clean water or liquids whose physical and chemical properties are similar to those of clean water. The temperature of the medium conveyed by the DLR pump must be below 150℃.
Hotline:
Vertical multistage pump
Horizontal Single-Stage Fire Pump
Product Parameters
Parameter Range and Model Description for DLR Vertical Pipeline Multistage 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 Multistage Pump
Level 6-6
Structural Types and Features of DLR Vertical Pipeline Multistage Pumps
|
|
↑Structural Diagram of DLR Vertical Pipeline Multistage Pump↑ | ↑Installation Reference Drawing for DLR Vertical Pipeline Multistage Pump↑ |
The DLR vertical multistage centrifugal pump for hot water pipelines is installed in a vertical configuration and features a compact structure, low noise level, and small footprint. The pump’s shaft seals are available in both packing seal and mechanical seal designs. The suction port is located on the lower part of the pump’s inlet section, while the discharge port is situated on the upper part of the outlet section—both ports are oriented horizontally. Depending on user requirements, the pump’s discharge port can be positioned at 90°, 180°, or 270° relative to the suction port (in standard installation, it is aligned at 0°). The pump primarily consists of components such as the inlet section, middle section, outlet section, bearing bracket, motor bracket, impeller, guide vanes, shaft, bearings, shaft sleeve, balance drum, and balance sleeve. The inlet section, middle section, outlet section, guide vanes, and bearing bracket together form the working chamber, while the shaft, impeller, balance drum, and shaft sleeve comprise the rotor assembly. Axial forces are balanced by the balance drum, and any remaining axial force is borne by the radial thrust ball bearing located at the upper end. The inlet section and middle section are each equipped with sealing rings designed to minimize leakage of high-pressure water back into the suction chamber.
The upper end of the shaft is fitted with a thrust ball bearing, while the lower end is equipped with a sliding bearing. The rolling bearings are lubricated with grease. The shaft seal employs a soft packing seal, which can also be interchanged with a mechanical seal. Lubrication and cooling are provided by pressurized water from the balance chamber.
Product Features of DLR Vertical Pipeline Multistage Pump
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 incurs significantly lower 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 of the DLR vertical multistage pipeline pump
The multistage pump is driven by a vertical electric motor, and when viewed from the motor end, the pump rotates counterclockwise.
Material of Main Components for DLR Vertical Pipeline Multistage Pump
The wetted parts of the pump—the suction section, middle section, discharge section, impeller, and sealing rings—are made of cast iron, while the shaft is made of high-quality carbon steel.
Part Name | Materials | Part Name | Materials |
Inlet section | HT250 | axis | 45 |
Middle section | HT250 | Shaft sleeve | HT200 |
Discharge section | HT250 | Sealing ring | HT200 |
Impeller | HT250 | Balance drum | HT200 |
Guide vane | HT250 | Balance sleeve | HT200 |
DLR Vertical Pipeline Multistage Pump Complete Set Range
Complete sets of pumps and motors supplied as a package.
Friendly reminder: For performance parameters of the DLR vertical multistage pipeline pump, 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.
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.
Previous Page
Previous Page
Product message
Contact our team promptly; we are happy to help you.
*Note: Please fill in the information accurately and keep the communication open. We will contact you as soon as possible.
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
Quick Navigation
Hot Products
Online Consultation
Powered by:www.300.cn Changsha SEO