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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
DYP-type Self-balancing Multistage Oil Pump (BB4)
Flow rate: 3.7–1350 m³/h
Head: 73–1800 m
Power: 5.5–4500 kW
Efficiency: 32%-84%
Pump weight: 158–6256 kg
Cavitation margin: 2.0–7.0 m
Price: 30,500–498,000
The DYP-type self-balancing multistage oil pump is capable of conveying oils that contain no solid particles, as well as petroleum products with temperatures below 80℃ and viscosities less than 120 centistokes.
Hotline:
Self-balancing multistage pump
Horizontal Single-Stage Fire Pump
Product Overview
The DYP-type self-balancing multistage oil pump features a rotor assembly with symmetric impellers at each stage, eliminating the conventional balance disc mechanism found in traditional multistage oil pumps. During operation, the axial forces generated are mutually balanced and essentially self-balanced, ensuring that the alignment between the impellers and guide vanes remains consistently stable. This design significantly enhances the pump’s operational efficiency and represents an innovative structural approach to multistage oil pumps. It is also one of the models in the self-balancing multistage pump series, serving as a viable alternative to multistage pumps that traditionally rely on balance discs or balance drums. Moreover, self-balancing technology is poised to become the future trend in the field of multistage centrifugal pumps.
↑Animation demonstration of the DYP-type self-balancing multistage oil pump↑
The DYP-type self-balancing multistage oil pump is used for conveying oils and petroleum products that are free of solid particles, have a temperature below 80℃, and a viscosity less than 120 centistokes.
Material of DYP Self-Balancing Multistage Centrifugal Oil Pump
HT200, HT250, QT600, ZG300, 304, 304L, 316, 316L, 317L, 904L, CD4, and others.
Main applications of DYP self-balancing multistage centrifugal oil pumps
● Oilfield water injection, mine drainage
● Transportation of media in petrochemical, coal chemical, and chemical industries
● Boiler feedwater systems and condensate return systems in industrial equipment
● Cold water delivery in shearing equipment
● Pressurized water delivery in oxidation removal equipment
● High-pressure water production in industrial processes
● Chemical process flow
● Brine collection and transportation
● Water delivery for equipment such as compressors and shelling machines
Meaning of DYP Self-Aligning Multistage Centrifugal Oil Pump Model Numbers
Working Principle of DYP Self-Balancing Multistage Centrifugal Oil Pump
Driven by the motor, the shaft of the self-balancing multistage pump rotates, doing work on the liquid and increasing its energy. The liquid is continuously conveyed vertically—from the suction sump through the pump’s suction section, forward impeller, forward guide vanes, middle section, discharge nozzle, transition pipe, secondary suction section, reverse impeller, reverse guide vanes, and finally to the discharge section.
↑DYP Self-Balancing Multistage Centrifugal Oil Pump Structural Diagram↑
↑Schematic diagram of the DYP self-balancing multistage centrifugal oil pump structure↑
↑DYP Self-Balancing Multistage Centrifugal Oil Pump Component Structure↑
↑DYP Self-Balancing Multistage Centrifugal Oil Pump Parts Material Recommendation Table↑
What are the advantages of DYP self-balancing multistage centrifugal oil pumps compared to conventional multistage centrifugal oil pumps?
As shown in the comparison above, the main advantages of the self-balancing multistage system over the traditional multistage system are:
1. Highly efficient and energy-saving, with significant power-saving effects.
Due to the reduced shaft power, the pump's power consumption per unit time decreases, resulting in a significant reduction in operating costs.
2. Advanced structure with a long maintenance-free period.
Due to the absence of balancing devices, the hydraulic system has fewer vulnerable parts, boasts long trouble-free operating periods, and significantly reduces maintenance and repair costs.
As shown in the figure above, the advantage of DYP self-balancing multistage centrifugal oil pumps lies in their lack of a balancing device, which reduces wear and results in more significant energy savings and reduced consumption.
Partial Customer Cases of DYP Self-Balancing Multistage Centrifugal Oil Pumps
Serial number |
Pump Type |
User Unit |
Quantity |
1 |
DY25-50×3(P) |
Shijiazhuang Thermal Power Plant |
1 |
2 |
DY25-50×3(P) |
Yunnan-Guizhou-Guangxi Petroleum Exploration Bureau |
1 |
3 |
DY25-50×4(P) |
Tianjin Yangliuqing Thermal Power Plant |
4 |
4 |
DY25-50×7(P) |
Handan Thermal Power Plant |
3 |
5 |
DY25-50×10(P) |
Shijiazhuang Thermal Power Plant |
3 |
6 |
DY46-50×4(P) |
Hangzhou Sentai Pump & Valve Machinery Complete Sets Co., Ltd. |
2 |
7 |
DY46-50×10(P) |
Sichuan Petroleum Administration |
2 |
8 |
DY46-50×12(P) |
Zhenjiang Hualing Mechanical and Electrical Equipment Factory |
2 |
9 |
DY46-50×12(P) |
Chongqing Yuxiang Special Steel |
1 |
10 |
DY85-80×3(P) |
Yunnan Thermal Power Plant |
3 |
11 |
DY85-80×3(P) |
Yueyang Dasheng Installation Company |
2 |
12 |
DY85-80×5(P) |
Hainan Midian Co., Ltd. |
2 |
13 |
DY150-80×3(P) |
Hebei Province Machinery & Import-Export Corporation |
2 |
14 |
DY150-80×3(P) |
Shandong Electric Power Materials Corporation |
2 |
15 |
DY150-80×5(P) |
Yueyang Dasheng Installation Company |
1 |
16 |
DY150-80×5(P) |
Guangxi Wuzhou Lumber Mill |
1 |
17 |
DY150-80×5(P) |
Nanjing Port Energy Company |
1 |
18 |
DY150-80×8(P) |
Chongqing Hongyuan Complete Equipment Co., Ltd. |
1 |
19 |
DY280-65×3(P) |
Jincheng Second Fertilizer Plant |
2 |
20 |
DY280-65×3(P) |
Henan Province's thermal power plant |
2 |
21 |
DY280-65×3(P) |
Changde Heng'an Paper Co., Ltd. |
2 |
22 |
DY280-65×5(P) |
Yifeng Fangxi Artificial Board Factory, Jiangxi Province |
1 |
23 |
DY280-65×5(P) |
Xiangxiang Petroleum Company |
1 |
24 |
DY280-65×5(P) |
Wuhan Haneng Power Development Co., Ltd. |
2 |
25 |
DY280-65×8(P) |
Maoming 300,000-ton Ethylene Project |
3 |
26 |
DY280-65×8(P) |
Qian Nan Branch, Guizhou Petroleum General Corporation |
1 |
Product Parameters
DYP Self-Balancing Multistage Centrifugal Oil Pump Performance Parameter Table
| Model Series |
Flow range (m³/h) |
Head range (m) |
Efficiency range (%) |
Matching power range (kw) |
| DYP6-25 | 3.75–7.5 | 70.35–320.3 | 36~49.5 | 5.5 to 18.5 |
| DYP6-50 | 3.75–7.5 | 144~624 | 28~30 | 15~55 |
| DYP6-80 | 3.75–7.5 | 225~982 | 32~36 | 15~75 |
| DYP12-25 | 7.5–15 | 68.3–325.3 | 43.3–52.1 | 7.5–30 |
| DYP12-50 | 7.5–15 | 142.7~635 | 30.6–44.6 | 18.5~75 |
| DYP12-80 | 7.5–15 | 225~982 | 37~40 | 30~132 |
| DYP25-30 | 15~30 | 77.7~418.8 | 55.2–56.9 | 15~55 |
| DYP25-50 | 15~30 | 144~618 | 44~54 | 22~110 |
| DYP25-80 | 15~30 | 228~1013 | 47–56 | 37~160 |
| DYP46-30 | 30~55 | 76.2~429 | 60~66.8 | 22~90 |
| DYP46-50 | 30~55 | 138.3~658.8 | 53.6–64.5 | 37~160 |
| DYP46-80 | 30~55 | 228~1056 | 59–65 | 55~250 |
| DYP65-80 | 50~75 | 228~1056 | 60–67 | 75~315 |
| DYP85-45 | 55~100 | 121.8~612 | 64.2–70.4 | 55~200 |
| DYP85-67 | 55~100 | 186.9~888 | 56.1–68.4 | 90~315 |
| DYP85-80 | 55~100 | 228~1056 | 59~71 | 110~450 |
| DYP85-150 | 55~100 | 429~1872 | 53~60 | 220~900 |
| DYP100-55 | 85~120 | 147~708 | 64.4–68 | 90~315 |
| DYP120-50 | 96~140 | 126.9~654 | 72~78 | 90~280 |
| DYP120-67 | 96~140 | 183–840 | 62–71 | 110~450 |
| DYP120-80 | 96~140 | 216~1056 | 61.6–70.4 | 132~560 |
| DYP120-100 | 96~140 | 261.6–1320 | 69.5~73 | 220~900 |
| DYP150-50 | 120~180 | 127.5–660 | 72~75 | 110~400 |
| DYP150-80 | 120~180 | 228~1056 | 65~75 | 185~710 |
| DYP150-100 | 120~180 | 261.6–1320 | 69.5~73 | 220~900 |
| DYP150-130 | 120~180 | 354~1644 | 62.5~64 | 315~1250 |
| DYP155-30 | 100~185 | 81.6–400.8 | 65.5–73.2 | 75~250 |
| DYP155-67 | 100~185 | 179.4–895.2 | 63–74 | 132~560 |
| DYP200-50 | 132~240 | 135~696 | 78–81 | 132~500 |
| DYP200-80 | 132~240 | 216~1044 | 70.9~75 | 220~900 |
| DYP200-100 | 132~240 | 252~1356 | 70~76 | 250~1000 |
| DYP280-43 | 185~335 | 116.1~564 | 70.5–76.7 | 160~630 |
| DYP280-65 | 185~335 | 184.5~816 | 63.3–74 | 250~1000 |
| DYP280-95 | 185~335 | 273~1200 | 68~72.5 | 400~1600 |
| DYP280-100 | 185~335 | 279~1248 | 58.6–72.6 | 400~1600 |
| DYP300-65 | 240~350 | 180~828 | 69.2–69.5 | 315~1120 |
| DYP360-40 | 300~440 | 106.5~504 | 77~80 | 185~710 |
| DYP360-60 | 300~440 | 157.5–768 | 71~74.5 | 355~1250 |
| DYP360-95 | 300~440 | 267~1224 | 70~73 | 500~2000 |
| DYP420-95 | 350~500 | 263~1192 | 67.9–71 | 560~2240 |
| DYP450-40 | 330~500 | 112.5~528 | 73.9–76.9 | 220~1000 |
| DYP450-60 | 335~500 | 162.9–765.6 | 74.1–78.9 | 355~1400 |
| DYP450-95 | 335~500 | 267~1200 | 72~75 | 560~2240 |
| DYP500-57 | 375~555 | 109.6–717.6 | 69.7–82.6 | 220~1400 |
| DYP550-40 | 400~600 | 76~528 | 75.1–78.4 | 185~1120 |
| DYP550-50 | 400~600 | 95~660 | 75.1–77.8 | 220~1400 |
| DYP550-95 | 400~600 | 182~1230 | 70.9–72.4 | 450~2800 |
| DYP580-60 | 450~640 | 113~780 | 75.5–76.8 | 280~1800 |
| DYP580-100 | 450~640 | 190–1284 | 70~74 | 500~2800 |
| DYP600-60 | 450~710 | 104~780 | 79–82 | 280~1800 |
| DYP600-85 | 450~710 | 162~1092 | 72.4–73.6 | 450~2800 |
| DYP650-80 | 540~715 | 154~1005 | 73.5–75.5 | 450~2800 |
| DYP650-100 | 540~715 | 193~1256 | 79.2~83 | 500~2800 |
| DYP720-60 | 550~850 | 106.8~738.1 | 79.2–82.4 | 355~2240 |
| DYP720-80 | 550~850 | 149~931.8 | 72.9~76 | 630~2800 |
| DYP720-100 | 550~850 | 186~1059 | 76.5–84 | 560~2800 |
| DYP800-80 | 620~900 | 150~951.5 | 73–81 | 500~2800 |
| DYP850-100 | 705~935 | 289~942 | 80~85 | 900~2800 |
| DYP900-60 | 700~1000 | 168~786 | 76.2~78 | 710~2800 |
Friendly reminder: Click on the specific model series above to view more detailed specifications and performance curves, among other information.
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.
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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
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