Ldl Vertical Multistage Centrifugal Pump

• Customization: Available
• Max.Head: 310m
• Max.Capacity: 324m³/H
• Model NO.: LDL
• Impeller Number: Multistage Pump
• Working Pressure: High Pressure Pump
• Influent Type of Impeller: Single Suction Pump
• Position of Pump Shaft: Vertical Pump
• Pump Casing Combined: Verticaljoint Surface Pump
• Mounting Height: Suction Centrifugal
• Impeller: Closed
• Usage: Pump, Pumps, Condensate Pump, Slurry Pump, Circulating Pump
• Color: Contomize
• Certificate: ISO9001:2000
• Transport Package: Wooden Sealed Packaging
• Specification: caliber: 20~300mm
• Trademark: Lyson
• Origin: China
• Production Capacity: 5000pieces/Month

Product Description

                                                                                    Introduction
LDL Vertical Multistage Centrifugal Pump is a hydraulic model of IS-type pump which adopts national high efficiency and energy-saving products. It is vertical multistage multi-section structure. Is absorbed at home and abroad advanced technology designed and manufactured non-self-priming vertical multistage centrifugal pump, the use of standard vertical motor and quick-mounted mechanical seal, the replacement is very convenient. Pump overcurrent parts are made of stainless steel (304 \ 316) material, suitable for mild corrosive media. The product can replace foreign CR, CRN and other similar products. Products on the market, with its energy efficient, reliable, the use of a wide range of features. It is suitable for conveying clean water whose temperature does not exceed 80 ºC and liquid whose physical and chemical properties are similar to those of clear water. Hot water is suitable for the temperature of not more than 150 ºC water and physical and chemical properties similar to clear liquid.






                             Application
Water Supply: Waterworks filtration and transportation, water district division water, supercharger, high-rise building pressurized.

Industrial Booster: Process Water System, Cleaning System, High Pressure Flushing System, Fire Fighting System.

Industrial liquid transfer: cooling and air conditioning systems, boiler feedwater and condensing systems, machine tools, acid and alkaline transport.

Water Treatment: UF system, reverse osmosis system, distillation system, separator and swimming pool water treatment system.

Irrigation: Farmland irrigation, sprinkler irrigation, drip irrigation.

                          Conveying medium

1, thin, clean, non-flammable and explosive medium without solid particles or fibers.

2, such as mineral water, demineralized water, pure water, edible oil and other light chemical medium.

3, the main pump material is stainless steel, can be applied to pumping mild corrosive media.
                                Features

1, vertical use of excellent hydraulic model and advanced manufacturing technology, greatly improve pump performance and service life.

2, because the shaft seal is made of hard alloy and fluorine rubber mechanical seal, can improve the reliability of pump operation and conveying medium temperature.

3, the pump over-current part of the use of stainless steel stamping welded, making the pump suitable for mild corrosive media.

4, the overall structure is compact, small size, light weight, low noise, energy-saving effect is significant, easy maintenance.
Vertical multi-stage pump
Vertical multi-stage pump

5, the pump inlet and outlet located in the same level of the pump seat, which can be used directly in the pipeline.

6, using standard motor, the user can easily equipped with motor as needed.

7, According to the needs of users with intelligent protectors, dry pump rotation, phase loss, overload and other effective protection.
                                Working principle
When the motor drives the impeller on the shaft to rotate at high speed, the liquid filled in the impeller is thrown around the impeller from the center of the impeller along the flow path between the blades due to the centrifugal force, and the pressure and the velocity At the same time, it is the principle that the impeller which is added to the secondary stage after passing through the flow channel of the guide shell flows through all the impellers and the guide shell one after another to further increase the pressure energy of the liquid. After each impeller step by step, you get a certain lift.
                               Model explanation

25DL2-12 * 3-1.1

25 refers to the path DN25

2 means: 2 cubic meters per hour

12 refers to: pump design single-stage lift

3 refers to: series

1.1 refers to: motor power
                        Implementation standards

Collapse national standards:

"Centrifugal pump technical conditions ()" GB / T16907-1997

"Centrifugal pump technical conditions ( class)" GB / T5656-1994

"Centrifugal pump technical conditions (Class )" GB / T5657-1995

"Determination of pump flow method" GB / T3214-91

"Centrifugal pump efficiency" GB / T13007-1991

"Centrifugal pumps, axial flow pump conditions" GB / T13009-91

"Centrifugal pump, mixed flow pump, axial flow pump and scroll pump test method" GB3216-89

"Centrifugal pump, mixed flow pump and axial flow pump hydraulic performance test specification precision class" GB / T18149-2000

"Centrifugal pumps, mixed flow pumps and axial flow pump NPSH" GB / T13006-1991

Collapse industry standards:

"Small multistage centrifugal pump type and basic parameters" JB / T6435.1-92

"Small multistage centrifugal pump technical conditions" JB / T6435.1-92

 Engineering standards:

"Building Water Supply and Drainage and Construction Quality Acceptance Code" GB50242-2002

"Building Water Supply and Drainage Design Code" GB50015-2003

                                               Technical Parameters

Q=4.9~324m³/h	H=18~310m
n=1480r/min	P=1.5~315kw
Dna=40~200mm	DNm=40~150mm
Temperature range=0-+90ºC	Work pressure≤2.4Mpa

                                                              Maintenance

Cleaning items

First, scrape the inner and outer surface of the impeller and seals and bearings and other places accumulated scale and rust and other objects, and then water or compressed air cleaning, blowing clean.

Second, clean the housing surface of the joint accumulation of grease and rust.

Third, clean the water seal tube and check the tube is smooth.

Fourth, clean bearings and bearings, remove grease, and then wash the oil ring and oil surface meter. Ball bearing application of gasoline cleaning.

Fifth, temporary zero assembly, parts, after cleaning should be oiled protection.

Fundamentals of folding and cleaning

1, to ensure that meet the requirements of the degree of cleanliness of parts, in the repair, a variety of mechanical parts, the degree of cleanliness requirements are not the same. In the assembly, the cleaning requirements of the mating parts are higher than those of the non-matching parts, the moving parts are higher than the static parts, and the precision parts are higher than the non-precision parts. For spray, plating, bonding the surface of the workpiece, the cleaning requirements are high. Cleaning must be based on different requirements, take a different cleaning agent and cleaning

Method to ensure the required cleaning quality.

2, to prevent corrosion of parts, precision parts do not allow any degree of corrosion. When the parts to be parked for some time after cleaning, should consider the antirust ability of cleaning fluid or consider other anti-rust measures.

3, to ensure safe operation, to prevent fire or poison the human body and cause environmental pollution.