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Vertical multistage high-temperature resistant pump type DLR

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Vertical multistage pump

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Pump

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Vertical multistage high-temperature resistant pump type DLR

Flow rate: 4.85 ~ 200m³/h

Manometric height: 21.5-239m

Efficiency: 50%-75%

Pump weight: 21-165kg

Motor power: 3.5-160kw

Available NPSH: 2.1-5.5m

Price: 0.62-5.97 ten thousand

The DLR vertical multistage hot water pipe pump uses the hydraulic model of the IS type pump, an internationally recommended efficient and energy-saving product. It is a vertical centrifugal pump, single suction, multistage, and segmented structure, suitable for urban water supply and centralized heating systems.

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Product Description Product Specifications Why Choose Us? FAQ

Product Description

　 The DLR vertical multistage pump is a vertical centrifugal pump, single suction, multistage, and segmented structure, which uses the hydraulic model of the IS water pump, an efficient and energy-saving product recommended nationally. The product has the advantages of compact structure, low noise, and small footprint. The product complies with the JB/T2727-93 standard "Type and basic parameters of vertical multistage centrifugal pumps," and is mainly used to pump clean, diluted, non-corrosive, non-explosive water and liquids with physical and chemical properties similar to water that do not contain solid particles or fibers.

The DLR vertical multistage pump can transport hot water with a medium temperature between 80℃ and 150℃, suitable for high-pressure hot water circulation in boilers in industries such as metallurgy, chemical, textile, wood processing, and paper manufacturing; pumps for hot water circulation in urban heating; centralized water supply and heating systems in tall urban buildings, fire protection systems, air conditioning systems, and water supply systems in industrial and mining enterprises. The installation is vertical, the pump screw firmly joins the inlet section, middle section, and outlet section into one piece. Each pump stage has an impeller and a water guide, the axial force is hydraulically balanced, the residual axial force is supported by ball bearings lubricated with grease. The shaft seal uses soft packing or mechanical seal. It is mainly used in centralized water supply and heating systems in tall urban buildings, fire protection systems, air conditioning systems, and water supply systems in industrial and mining enterprises. The DLR vertical multistage centrifugal pump is manufactured by our company using advanced technology, extensive production experience, and comprehensive testing methods, with computer-assisted design and optimization, ensuring stable operation and reliable quality.

Structure type and characteristics of the DLR type hot water multistage pump:

　　The DLR type multistage centrifugal pump uses vertical installation, featuring compact structure, low noise, and small footprint. The pump shaft seal can be packing seal or mechanical seal. The inlet is located at the lower water inlet section of the pump, and the outlet is at the upper water outlet section, both in a horizontal direction. The pump outlet can be oriented at 90°, 180°, or 270° relative to the inlet according to user needs (conventional installation is at 0°). The pump mainly consists of the inlet section, middle section, outlet section, bearing support, motor support, impeller, water guide, shaft, bearings, shaft sleeve, balance drum, balance sleeve, and other parts. The inlet, middle, outlet sections, water guide, and bearing support form the working chamber; the shaft, impeller, balance drum, and shaft sleeve form the rotor. The axial force is balanced by the balance drum, and the residual axial force is supported by the centrifugal thrust ball bearing at the upper end. There are sealing rings in the inlet and middle sections to reduce high-pressure water leakage into the inlet chamber. The upper end of the shaft has a centrifugal thrust ball bearing and the lower end has a sliding bearing. The rolling bearings are lubricated with grease. The shaft seal uses soft packing, which can also be replaced with a mechanical seal, lubricated and cooled with pressurized water from the balance chamber.

　　 Product Features:

　　1. Innovative structure and reliable operation: the balance drum (disc) is eliminated, the axial force is hydraulically balanced, completely solving the problems of corrosion, seizure, and wear of the balance drum, ensuring more reliable operation.

　　2. Lower operating and maintenance costs: uses a reliable mechanical seal with a low failure rate, reducing operating and maintenance costs.

　　3. Stable operation and low noise: uses a low-speed motor, making this series of pumps operate stably and with low noise.

　　4. Unique components that reduce noise: unique design of hydraulic components with good flow performance, significantly reducing flow noise.

　　Rotation direction:

　　 Multistage pump Driven by a vertical motor, viewed from the motor end, the pump rotates counterclockwise.

　　Main materials of the parts:

　　The flow passage parts of the pump, including the inlet section, middle section, outlet section, impeller, and sealing rings, are made of cast iron; the shaft is made of high-quality carbon steel.

Part Name	Material	Part Name	Material
Inlet Section	HT250	Shaft	45
Middle Section	HT250	Shaft Sleeve	HT200
Outlet Section	HT250	Sealing Ring	HT200
Impeller	HT250	Balance Drum	HT200
Water Guide	HT250	Balance Sleeve	HT200

　　Pump supply scope: combined supply of pump and motor.

Product Parameters

Meaning of the vertical multistage pump model type DLR:

Technical parameters of the vertical multistage pump type DLR (These data are for reference only, please take the actual order as the standard!) ：

Model	Number of stages	Diameter (mm)	Flow rate (m3/h)	Manometric height (m)	Power (KW)	Speed (r/min)	NPSH (m)
40DLR6-12	2	40	6	24	1.5	1480	3.2
	3			36	2.2
	4			48	3
	5			60	4
	6			72	4
	7			84	5.5
	8			96	5.5
	9			108	7.5
	10			120	7.5
	11			132	7.5
	12			144	11
50DLR12.5-12.5	2	50	12.5	25	3	1480	2.2
	3			3.75	3
	4			50	4
	5			62.5	5.5
	6			75	7.5
	7			87.5	7.5
	8			100	7.5
	9			112.5	11
	10			125	11
65DL(DLS)30-15	2	65	30	30	5.5	1480	2.82
	3			45	7.5
	4			60	11
	5			75	15
	6			90	15
	7			105	18.5
	8			120	22
	9			135	22
	10			150	30
80DL(DLS)50-20	2	80	50	40	11	1480	2.2
	3			60	15
	4			80	22
	5			100	30
	6			120	3.5
	7			140	37
	8			160	45
	9			180	45
	10			200	55
100DL(DLS)72-20	2	100	72	40	15	1480	2.8
	3			60	18.5
	4			80	30
	5			100	37
	6			120	37
	7			140	45
	8			160	55
	9			180	55
	10			200	75
100DL(DLS)100-20	2	100	100	40	18.5	1480	2.8
	3			60	30
	4			80	37
	5			100	45
	6			120	55
	7			140	75
	8			160	75
	9			180	90
	10			200	90

For more parameters of the DLR vertical multistage centrifugal pump series, please visit directly Pump selection the page to download the intelligent selection software or call: 0731-88192288 for inquiries.

Why Choose Us?

Changsha Zhonglian Pump Industry Co., Ltd. was established in 1989, following the reform of the Changsha Water Pump Factory. It is a national high-tech comprehensive enterprise integrating design, research and development, manufacturing, and service. The company was listed on the Hunan Provincial Stock Exchange on December 31, 2019, with the abbreviated name "Zhonglian Pump Industry" and stock code: 600275HN. It is currently a key enterprise in China's centrifugal pump industry and one of the leading domestic manufacturers of multi-stage pumps, headquartered in Changsha, Hunan, a historical and cultural city in China.

FAQ

What products do you mainly produce?

Zoomlion Pump Industry manufactures various large industrial centrifugal pumps. The main products include: self-balancing multistage pumps, multistage centrifugal pumps, single-stage centrifugal pumps, split-case pumps, chemical pumps, submersible pumps, pipeline pumps, long-shaft pumps, condenser pumps, and more.

Can you help me choose a model?

Of course! If the water pump model is not selected accurately, it can cause significant problems. After you take it back, it might be either too small to meet the usage requirements or too large, resulting in higher electricity and fuel costs, increasing the operating expenses.

Why is the price quotation so slow?

Because centrifugal pumps are non-standard custom products with many models and a wide price range. Even for the same model, the price varies greatly depending on the materials and configurations used. Taking the most common 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 clearly confirm the relevant information to provide you with an accurate price. Normally, if you provide comprehensive information, we can quote within 5 minutes.

What information should I provide when I need a quote?

Usually, if you want to get an accurate quote, it is recommended that you provide us with the following information: pump flow rate, head, on-site operating voltage, frequency, temperature of the conveyed liquid, pH value, solid particle content, on-site installation conditions (horizontal or vertical installation), and other related details. If you are not very familiar with these, it’s okay; our sales manager will assist you in determining them.

Do you have centrifugal pumps in stock?

There are many models and configurations of centrifugal pumps. Except for a small number of commonly used standard models that are in stock, the vast majority of models and configurations are not stocked and are customized products. We need to first select the pump based on your site conditions such as flow rate, head, medium temperature, pH value, and installation conditions. After determining the pump model and configuration, we can then place an order with the workshop for production.

What is your usual delivery time?

Models in stock can be shipped by the next day at the latest. Others are custom-made, and depending on the product size and specific project conditions, the delivery time is generally between 7-90 days. Please consult our sales manager for details: 0731-88632200 。

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