KUBOTA Vertical Mixed Flow Pump
for Seawater DF-VS series

KUBOTA has developed a new Vertical Mixed Flow Pump (with optional Pull-out Type) forSeawater, fabricated from stainless steel plate.
This new pump takes full advantage of the latest analysis techniques and fundamental technology based on many years of experience in pump manufacturing.

KUBOTA DF-VS series contribute in various applications such as Power Plant,
Petrochemical Plant, Desalination Plant and etc.
Example ofapplication

Example ofapplication

Power Plant

Desalination Plant

Circulating Water Pumps

Brine Recirculating Pumps

EGAT Banpakong CCGT Power

Um Al Nar West Desalination Plant
Abu Dhabi, UAE

Plant #5, Thailand

Type

Vertical Mixed
Flow Pump

Type

Vertical Mixed
Flow Pump

Bore

1,350mmBore

1,100mm

Capacity

19,600m3/h

Capacity

12,256m3/h

Total Head

23m

Total Head

67.5m

Motor

2,740kW

Motor

Example ofapplication

1,680kW

Example ofapplication

Petrochemical Plant

Fertilizer Plant

Sea Water Pumps

Brine Intake Pumps

Tasnee Petrochemicals

Arab Potash company New Main

Saudi Arabia

Brine Intake Pumping Station,

Dead Sea Jordan
Type

Vertical Mixed
Flow Pump

Type

Vertical Mixed
Flow Pump(Pull Out)

Bore

1,200mm

Bore

1,350mm

Capacity

15,600m3/h

Capacity

18,650m3/h

Total Head38m

Total Head60m

Motor

2,350kW

Motor

4,950kW(Note) Some of the above Example are previous models.
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KUBOTA Vertical Mixed Flow Pump
for Seawater DF-VS series

Verification Test
Discharge Elbow

Fatigue
TestFeatures
High Performance
・Bowl configuration has been simplified by using Duplex Stainless Steel plate while obtaining highefficiency.

Column Pipe

TensileTest・Improved suction performance has been achieved by using advanced analysis technology.

Lightweight and CompactMain Shaft

・Duplex Stainless Steel plate is used for pump main parts.

・30% lighter compared to the previous stainless steel casting type.

High-reliability
・Improved corrosion resistant by using Duplex Stainless Steel.

・Fabrication based on reliable welding techniques of Duplex Stainless Steel through various element tests.

Easy in MaintenancePrototype
Durability
Test

Discharge Bowl

Impeller

Suction Bell・Easy maintenance work by pump light weight.

・Shorter delivery time compared to pumps made of stainless steel casting.

Advanced Analysis TechnologyFluidAnalysis

4StrengthAnalysis

Strength
AnalysisVibrationAnalysis

5

OPTION

Standard Specification

Standard Material

Bore size

φ1200〜φ2200

Wet parts

Duplex Stainless Steel

Discharge Flange

ISO7005-1 PN-10Option) ASTM, ANSI and other standard

Dry parts

Carbon SteelInstallation

1 Floor / 2 Floor*Duplex Stainless Steels has a two-phase microstructure

Fluid

Seawater / Brackishwhich leads to it’s excellent anti-corrosion and high strength

Temperature

0℃ 〜 50℃

Super Duplex Stainless Steel can be applied as option.

Sealing

Gland Packing / Mechanical seal

Thrust bearing

Anti-friction, oil bath lubrication
Option) Tilting-pad typeRadial bearing

Rubber or Teflon,water lubrication

Pull OutTypeconsisting of grains of ferritic and austenitic satinless steel
properties.

Pull-out type
Advantage
Since the portion pulled out
for maintenance is limited to
the rotating parts, smaller
lifting capacity is sufficientand maintenance works iseasier.

Range Map
Pump Dischage Bore Size [㎜]φ1200

Rotating parts (such as Impeller, Main Shafts)
can be pulled out from column pipe for easy
maintenance.

φ1350

φ1500

φ1650

φ1800

φ2000

Pull out Parts

φ2200

Stationary Parts

120
100
9080Supply experience

7060

Arab Potash company New Main Brine Intake Pumping Station, Dead Sea,Jordan φ1350×4950kW×8sets

Total Head (m)5040・Column length : 25m
・Material : Super Duplex Stainless Steel

302010150

200300400500600700800900

Lifting Test at Factory

Capacity [m3/min]note) Contact us for any specification other than the above.

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