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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
Stainless steel long-shaft pump
Traffic: 85–5600 m³/h
Head: 10~100.8 m
Power: 5.5-2000kw
Shaft power: 3.9-1705kw
Rotational speed: 590-2950r/min
Efficiency: 70-85%
Price: 83,000 to 456,000
The stainless steel long-shaft pump is a vertical long-shaft pump featuring advanced material specifications. The selection of the stainless steel grade can be tailored to specific operating conditions, enabling it to better handle various complex and corrosive environments. This type of long-shaft pump is capable of conveying industrial wastewater or seawater that contains corrosive substances.
Hotline:
Long-axis pump
Horizontal Single-Stage Fire Pump
Product Parameters
· Meaning of the model designation for stainless steel long-shaft pumps
200LCF-23A×2-LH
200——The pump outlet diameter is 200 mm.
LCF—Stainless Steel Long-Shaft Pump
23—When the impeller is not cut, the head at the single-stage design point of the pump is 23 m (total pump head = single-stage head × number of impeller stages).
A—Impeller outer diameter cutting code
×2—The impeller has 2 stages (omitted when the stage number is 1).
L Submerged depth (Lw40m, unit: m)
H—Pump with protective casing (omitted if no protective casing is used).
Note: The model formats for 100-caliber and 150-caliber pumps are 100LC50-20Ax2-L and 150LC140-15Ax2-L, respectively, where 50 and 140 represent the pump’s design-point flow rate. For vertical long-shaft pump models with diameters ranging from 200 to 1000 calibers, the flow-rate parameter is not included in the model format.
· Structural features of the stainless steel long-shaft pump
The stainless steel long-shaft pump features a vertically downward suction inlet and a horizontally oriented discharge outlet. It can be started without requiring vacuum priming, is installed on a single foundation, and directly couples the pump to the motor, occupying a small footprint. When viewed from the motor end, the pump rotor assembly rotates counterclockwise. Its main structural features include:
1. The design has been optimized using hydraulic design software, delivering superior performance and fully accounting for the wear resistance of the impeller and guide vanes, thereby significantly extending the service life of components such as the impeller and guide vanes. The product operates smoothly, safely and reliably, and is highly efficient and energy-saving.
2. The pump inlet is equipped with a filter screen of appropriately sized openings, which effectively prevents large particulate impurities from entering the pump and causing damage, while also minimizing inlet losses to the greatest extent possible and thereby improving pump efficiency.
3. The impeller uses balance holes to counterbalance axial forces. Both the front and rear cover plates of the impeller are equipped with replaceable sealing rings to protect the impeller and guide vanes.
4. The pump rotor assembly includes components such as the impeller, impeller shaft, intermediate shaft, upper shaft, coupling, and adjusting nut.
5. The intermediate shaft, lift pipe, and protective casing of the pump are multi-section; the shaft is connected using either a threaded coupling or a sleeve coupling. The number of lift pipes can be increased or decreased according to user requirements, making the pump suitable for different submersible depths. The impeller and guide vanes can be either single-stage or multi-stage, catering to varying head requirements.
6. The length of each individual shaft is reasonable and its stiffness is sufficient.
7. The pump’s lift pipes are connected by flanges, and each pair of adjacent lift pipes is equipped with a guide bearing housing. Both the guide bearing housing and the guide vane housing are fitted with guide bearings made of polytetrafluoroethylene, ceramic, or nitrile rubber. A protective sleeve is used to safeguard the shaft and the guide bearings. When pumping clean water, the protective sleeve can be removed, and the guide bearings do not require external cooling and lubrication water. However, when pumping sewage, the protective sleeve must be installed, and the guide bearings must be supplied with external cooling and lubrication water (the pump is equipped with a self-closing sealing system; after the pump stops, this self-closing sealing system prevents sewage from entering the guide bearings).
8. The residual axial force of the pump and the weight of the rotor components can be borne either by the thrust bearing housed within the motor base or by a motor equipped with a thrust bearing. The thrust bearing can be lubricated with grease (also known as dry-lubrication) or with oil (also known as thin-oil lubrication).
9. The pump’s shaft seal is a packing seal, and replaceable shaft sleeves are installed at the shaft seal and guide bearing locations to protect the shaft. The axial position of the impeller can be easily adjusted by means of the adjusting nut located either at the upper end of the thrust bearing assembly or within the pump coupling.
·Material reference for stainless steel long-shaft pumps
Main parts | Corrosive liquid | |
Flared mouth | HT200Ni2Cr | 321/316L stainless steel |
Impeller | ZG1Cr18Ni9Ti | ZCuZn16Si4/316L stainless steel |
Sealing ring | HT200Ni2Cr | ZCuZn16Si4/316L stainless steel |
Guide vane body | HT200Ni2Cr | ZG00Cr17Ni14Mo2 |
Suction pipe, protective pipe | 1Cr18Ni9Ti | 00Cr17Ni14Mo2 |
axis | 1Cr18Ni9Ti | 00Cr17Ni14Mo2 |
Shaft sleeve | lCr17Ni2 | 1Cr17Ni2 |
Guide bearing | Polytetrafluoroethylene/Sealant/Rubber丁腊 | |
Guide bearing housing | HT200Ni2Cr | ZG00Cr17Ni14Mo2 |
Threaded and Sleeve Couplings | 1Cr17Ni2 | 1Cr17Ni2 |
Outflow bend pipe | 1Cr18Ni9Ti | 00Cr17Ni14Mo2 |
Motor mount | Q235-A | Q235-A |
· Technical specifications of the stainless steel long-shaft pump
50LC/YLT-10 | 200LC/YLT-20 | 400LC/YLT-35 | 800LC/YLT-15 |
50LC/YLT2-20 | 200LC/YLT2-30 | 400LC/YLT2-40 | 800LC/YLT-20 |
50LC/YLT3-30 | 200LC/YLT2-40 | 400LC/YLT2-50 | 800LC/YLT-25 |
50LC/YLT4-40 | 200LC/YLT3-65 | 400LC/YLT2-60 | 900LC/YLT-4 |
50LC/YLT5-50 | 200LC/YLT4-90 | 500LC/YLT-4 | 900LC/YLT-6 |
50LC/YLT6-60 | 250LC/YLT-20 | 500LC/YLT-6 | 900LC/YLT-8 |
50LC/YLT7-70 | 250LC/YLT2-30 | 500LC/YLT-8 | 900LC/YLT-10 |
50LC/YLT8-80 | 250LC/YLT2-40 | 500LC/YLT-10 | 900LC/YLT-14 |
50LC/YLT9-90 | 250LC/YLT2-50 | 500LC/YLT-12 | 900LC/YLT-16 |
50LC/YLT10-100 | 250LC/YLT3-60 | 500LC/YLT-15 | 900LC/YLT-20 |
65LC/YLT-10 | 250LC/YLT3-75 | 500LC/YLT-20 | 900LC/YLT-25 |
65LC/YLT2-20 | 250LC/YLT4-95 | 500LC/YLT-25 | 1000LC/YLT-4 |
65LC/YLT3-30 | 300LC/YLT-6 | 500LC/YLT-30 | 1000LC/YLT-7 |
65LC/YLT4-40 | 300LC/YLT-8 | 500LC/YLT-35 | 1000LC/YLT-9 |
65LC/YLT5-50 | 300LC/YLT-10 | 500LC/YLT-40 | 1000LC/YLT-10 |
65LC/YLT6-60 | 300LC/YLT-15 | 600LC/YLT-4 | 1000LC/YLT-13 |
65LC/YLT7-70 | 300LC/YLT-20 | 600LC/YLT-6 | 1000LC/YLT-16 |
65LC/YLT8-80 | 300LC/YLT2-30 | 600LC/YLT-8 | 1000LC/YLT-18 |
65LC/YLT9-90 | 300LC/YLT2-40 | 600LC/YLT-10 | 1000LC/YLT-20 |
65LC/YLT10-100 | 300LC/YLT3-60 | 600LC/YLT-12 | 1200LC/YLT-4 |
80LC/YLT-15 | 300LC/YLT4-80 | 600LC/YLT-15 | 1200LC/YLT-6 |
80LC/YLT2-30 | 350LC/YLT-4 | 600LC/YLT-20 | 1200LC/YLT-9 |
80LC/YLT3-45 | 350LC/YLT-6 | 600LC/YLT-25 | 1200LC/YLT-12 |
80LC/YLT4-60 | 350LC/YLT-8 | 600LC/YLT-30 | 1200LC/YLT-14 |
80LC/YLT5-75 | 350LC/YLT-10 | 600LC/YLT-35 | 1200LC/YLT-16 |
80LC/YLT6-90 | 350LC/YLT-15 | 600LC/YLT-40 | 1200LC/YLT-18 |
80LC/YLT7-105 | 350LC/YLT-20 | 700LC/YLT-4 | 1200LC/YLT-20 |
100LC/YLT-15 | 350LC/YLT2-30 | 700LC/YLT-6 | 1200LC/YLT-24 |
100LC/YLT-30 | 350LC/YLT2-40 | 700LC/YLT-8 | 1400LC/YLT-14 |
100LC/YLT2-60 | 350LC/YLT3-60 | 700LC/YLT-10 | 1400LC/YLT-60 |
100LC/YLT3-90 | 350LC/YLT4-80 | 700LC/YLT-12 | 1400LC/YLT-60A |
100LC/YLT4-120 | 400LC/YLT-4 | 700LC/YLT-15 | 1400LC/YLT-60B |
150LC/YLT-20 | 400LC/YLT-6 | 700LC/YLT-20 | 1400LC/YLT-10 |
150LC/YLT2-30 | 400LC/YLT-8 | 700LC/YLT-25 | 1600LC/YLT-12 |
150LC/YLT2-40 | 400LC/YLT-10 | 700LC/YLT-30 | 1600LC/YLT-13.5 |
150LC/YLT3-60 | 400LC/YLT-13 | 800LC/YLT-4 | 1600LC/YLT-14.6 |
150LC/YLT4-80 | 400LC/YLT-16 | 800LC/YLT-6 | 1600LC/YLT-20 |
150LC/YLT5-100 | 400LC/YLT-20 | 800LC/YLT-8 | 1600LC/YLT-19 |
150LC/YLT6-120 | 400LC/YLT-25 | 800LC/YLT-10 | 1800LC/YLT-34 |
200LC/YLT-15 | 400LC/YLT-30 | 800LC/YLT-12 | 1800LC/YLT-34A |
Friendly reminder: Click on the model above to view detailed specifications, graphs, and 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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