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marine pump, cargo pump & mechanical seal

H3S pump

What is a vacuum self-priming pump?

Due to its specially designed structure, it is a self-priming pump with strong vacuum suction by the impeller and guide device of the main pump even without a vacuum pump. It refers to a pump that can be used only with a single fill of make-up water (priming water) at the beginning of use, and even if the internal air is mixed, it discharges air with water and continues to operate and generates strong self-priming power to transport fluid.

H3S TYPE Ⅰ / H3S TYPE Ⅱ / H3S TYPE Ⅲ
PUMP spectification

* Custom-made is available according to customer's requirements .

H3S - Type Ⅰ H3S - Typ Ⅱ H3S - Typ Ⅲ
Capacity 5.0(0~8.0) ㎥/hr 8.0(0~13.0) ㎥/hr 40(0~70) ㎥/hr
Total head Max. 15m Max. 30m Max. 60m
Suction height (vertical height for suction) - 8.0m - 8.0m - 8.0m
Power specification Motor 3.0HP(2.2kW) 3.5HP(2.6kW) 25HP(18.5kW)
220V (1Φ/3Φ)/380V(3Φ)/440V(3Φ) 380V (3Φ)/440V(3Φ) 380V (3Φ)/440V(3Φ)
Pump material Aluminum alloy, bronze, stainless steel Aluminum alloy, bronze, stainless steel Aluminum alloy, bronze, stainless steel
Size(W*H*L) 214*268*577 214*268*626 340*485*1390
PUMP performance

* Verified performance data measured by an accredited testing laboratory.

Characteristics of vacuum self-priming pump
Strong vacuum suction + discharge pressure lift + solid crushing function
  • Pumping is possible within 2~3 seconds at the same time as power is turned on.
  • Invention patent with the highest performance compared to the same specification Invention patent
    - Suction height (up to 8.0 m with suction
    - Total head: 30 m (type2), 15 m (Type l)
    - Fluid can be transported up to 200 m horizontally.
  • Zero residue: Strong air suction power removes even the last residue from the bottom.
  • The solids in the conveying fluid are crushed and discharged by the crushing device.
  • The one-touch detachable device structure makes it easy to assemble and connect pipes and is convenient to use.
  • Efficient cleaning due to the industry's first vacuum cleaner brush. Design patent
  • It is designed as a compact and lightweight structure that is easy to move and carry. (Weight: less than 27kg)
Where to use the product
Ships Bilge pumps / Removal of residue after hold cleaning Industrial Factory / Mall floor cleaning, chemicals / Food transport, civil engineering work in narrow wells, telegraph and telephone underground PIT renovation/repair work
General use Rooftop / Swimming pool / Water tank cleaning, orchard / Fish farm / Gardening irrigation Emergency Emergency use in case of flood or fire


Removal of residues in the water tank


Underground/floor dust slurry cleaning


Easy to carry in high-rise buildings, rooftops, and underground


Water collection in narrow wells

H3S features
H3S pump is the pump that solves these shortcomings.
  • General pumps cannot suck on their own when air is introduced, and also have many restrictions
  • Put the pump in water or install it as close as possible to the conveying fluid
  • Theoretically, the pump suction height (vertical height for suction) cannot exceed 10M, and pumping is not possible when air is inhaled
  • Performance test

  • Performance test

  • Photo of SM Ho Chi Min Ho installation

  • Suction/Discharge head check

  • Fermentation tank cleaning

  • crab restaurant

  • Water tank cleaning

  • MCT, CNC coolant transfer

Technical differences
  • Powerful suction with both vacuum pump and fluid transfer sucks and transports the fluid.
  • Possible to suck and transport from a place far from the source
  • Can be installed and used in a place away from or away from a hazardous area
  • Unlike general pumps that cannot be pumped when air is inhaled, water and air are transported together even when air enters
  • Self-absorption function up to 8m maximum suction height (vertical height for suction) enables suction in deep places
  • If necessary, a crusher can be installed to crush and transport solids.
Table of comparison with other companies in the case of Raw rice wine manufacturing plant
Daewon Method Existing Method Remarks
1 Convenience - Zero residue
- Switch on 2~5 seconds pumping
- One-touch piping connection
- Easy to move and transport
- Compact size, light weight
- Insufficient removal of residue / rework
- Inconvenient hose attachment and detachment
- Long removal time
- Simultaneous suction of water and air
2 Productivity - 5 seconds / 1 tank
- 30 tanks / day = 2 minutes 30 seconds
- 5 minutes / 1 tank
- 30 tanks / day = 2.5 hours
- Reduced residue removal time by more than 10 times
- Save more than 2 hours/day
3 Economic feasibility Minimum Wage: ₩8,720
(2 persons ₩17,440)
8,720 * 0.5 hours/day
8,720 * 30 = ₩261,600
Minimum Wage: ₩8,720
(2 persons ₩17,440)
17,440 * 2.5 hours/day
43,600 * 30 = 1,308,000
- Reduction of more than 1 million won per month
- Annual savings of more than 12 million won
- Less than 2 months of investment payback period
Monthly fee Month required ₩261,600 Month required ₩1,308,000
Effect verification after actual use of fermentation tank at Takju manufacturing plant

Effect of shortening fermentation tank cleaning time

Conventional H3S
Cleaning time (1 tank) 10 minutes 1minutes
Total time (25 tanks) 250 minutes 25 minutes
  • Tank cleaning time and preparation time reduced by 10 times or more
  • Easy to clean due to portability and simplicity
  • Simultaneous transport of water and air with strong suction power
  • Safe because you do not need to go inside directly
  • Labor cost reduction and productivity improvement possible

Fermentation tank cleaning and use

Delivery Customer
NO Client Usage
1 PANASIA Close type Scrubber의 Slurry Transfer Pump
(Magnesium transfer pump)
2 DH Shipbuilding, Samkwang Shipbuilding Ship bilge, Sludge pump
3 Korea Shipping, Polaris Ship bilge pump
4 Shipbuilder Vacuum cleaning of toilets
5 Korea East-West Power Suction and removal of underground dirt from the cooling water discharge lock gate
6 raw rice wine factory Suction and removal of residues
7 DAEGAEMANCHAN(crab restorant) Seawater supply after seawater suction far from the source
8 Jinil C&C Ready-mixed Concrete Suction and removal of floor residues from large rooftop water tanks
9 Dongwon Engineering Suction and removal of power plant cooling water intake part jellyfish
10 General branch offices Installation far from river water, suction and supply of river water, suction and removal of residuals from the bottom of the water tank as a substitute for submersible pump
11 Incheon Songdo Central Park Park Suction and removal of Lake Scum
12 Hyundai WIA Suction and transfer of machining cutting oil for machine tools such as MCT, CNC, etc.

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