Series DVS of vertical multi-stage pumps are designed for conditions of low suction pressure duties.
The vertical structure is selected to meet low NPSH duty requirement. DVS series of pumps are
suitable for handling liquids clean, or with little solids, or slightly contamicated, or low or high
temperature, or chemical neutral or corrosive liquids like ethylene, liquid nitrogen, condensate, and oil
etc.
Series DVS of pumps are mainly applied in fields of power plant, petrochemicals, oil refineries, coal
chemical industries, low temperature duties, condensate transferring, environmental protection, water
supply and drainage, watwer treatment, off-shore petroleum platform, sea water desalination etc.
Series DVS pumps are designed in each specific plans to meet different duties and demands, so as to
ensure high efficiency, steady and reliable performance.
Series DVS of pumps are generally used for duties with low NPSH. The pump body is inserted below
ground, so the pump length will provide extra NPSH value to avoid damage to the pump due to
cavitation happened at impeller suction part.
The space advantage of small installation size of this series of pumps, provides reasonable
arrangement for equipment pipe lines.
Series DVS of pumps are specially suitable for low temperature liquid gas transferring. The outer
casing may not be needed if the pump is installed to the vessel, or pump suction is connected with
pipe line directly. In order to have the pump structure tightly, we use minimum pump length(minimum
stages) with accurate calculation, and connect pump to inlet and outlet pipe nozzles.
This series of pumps can be changed structure as per duty demands. The design has obvious
advantages for installation, cooling and maintenance. So the overall and professional design principle
ensured pumps reliable performance, energy saving and efficient for environmental protection.
Capacity Head
Pressure
Working temperature
Q: 6 to 1600m3/h
H: ≤800m
P: ≤10.0MPa
T:-80ºC to +250ºC
Series DVS of pumps are vertical multi-stage, radial split, sectional ring type with radial diffuser. The design and manufacturing is according to API 610 edition "Centrifugal Pumps for Petroleum, Petrochemical and Natural Gas Industries" . The impeller is single suction radial type, with first impeller generally suction type. Inducer is available if necessary and required.
Series DVS of pumps have structure of multi-supporting points with thin oil lubrication. Auxiliary and monitoring facilities will guarantee safety operation for pumps.
In order to meet duty requirement, each type of pumps are matched with several different advanced hydraulic models and parts for option. Excellent features of low NPSH, high efficiency, no hydraulic
radial force etc. Is realized.
Series DVS of pumps are designed to bear the suction pressure. The pumps installation depth and pump length depends on NPSH condition.
The axial thrust is balanced through balancing drum. The clearance is automatically adjusted during operation to have satisfactory balancing effect. The residual axial thrust is born by a pair of angular contact bearing with safety and reliable operation.
The bearing are mounted in bearing housing easy for disassembling and maintenance. The seals can be replaced through disassembling the bearing housing only.The advanced oil lubrication is functioned by a rotating lubrication facility independently. The needs of liquid lubricated middle supporting bearings will be determined according to pump length.
The seals system of our DVS series of pumps are strictly confirmed to API 682 pumps-shaft sealing system for centrifugal and rotary pumps. The shaft seal is adopted single face and double face with necessary auxiliary piping system for seals. The suction and discharge pipes may be located and arranged with other best type as per installation space, so as to facilitate convenient installation.
40 DVS 180 L-N
40: Discharge flange diameter(mm)
DVS: Series code
180: Impeller nominal diameter(mm)
L: Hydraulic Model Code
N: Impeller Stages
Performance Parameter Table
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Shenyang Haipurui Vacuum Technology Co., Ltd. is a high-tech enterprise dedicated to the research and development, design, manufacturing, sales, and service of vacuum pumps and complete vacuum equipment. The company has experienced vacuum technicians and absorbs vacuum technology to continuously develop and improve product design and application, providing good solutions to meet vacuum applications in various industries. Our company has passed the ISO9001quality management system certification and has successively obtained twelve patents and three software copyrights, striving to break through and improve our research and development level. Our products are widely used in industries such as petrochemicals, pharmaceuticals, hospitals, electronics, new materials, aerospace, printing, packaging, papermaking, automation, etc. Haipurui's strong technical strength and comprehensive, high-quality services help customers and partners achieve maximum success.
The company's products mainly have two categories. One is vacuum acquisition equipment, namely vacuum pumps, including 2BV, 2BE, SK, 2SK series liquid ring vacuum pumps and compressors, SY,2SY series liquid ring compressors, and XD series single-stage rotary vane vacuum pumps; The second category is vacuum application products, including the 2BW series liquid ring vacuum pump closed cycle system, JZJ series Roots vacuum pump unit, and ZF series central vacuum system.
Among them, vacuum application products use vacuum acquisition equipment as the vacuum host (vacuum source), equipped with gasliquid separators, vacuum buffer tanks, heat exchangers, pressure transmitters, temperature transmitters, liquid level transmitters, replenishment solenoid valves, inlet pneumatic valves, cavitation protection devices, working fluid flow meters, intake filters, etc., which can monitor various control points in real time. And it can be configured with PLC, human-machine interface touch screen, etc. to automatically open pumps, valves, etc. according to user processes, record various parameters and realtime operating status, and achieve true process automation.
1.Are you a factory or trading company?
We are a factory and we have professional team of workers,Designers and inspectors.
2.Do you accept custom?
Of course.We have professional teams who make your designs,photos,imagines and OEM orders into real production.
3.What's your shipping terms?
If you need to ship by air,we can use DHL,UPS,FedEx,TNT or EMS.If you need to ship by sea,we have many good forwarders to work with,they can provide the best price for you.
4.Whats your payment terms?
Until now , we can accept TT.LC.
5.What information do you need to offer a quotation?
Pump Capacity: m³/h or L/S
Voltage: V
Frequency: Hz
Audited Supplier 
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