Nikuni Micro-Bubble Generator
www.nikunijapan.com
KTM Karyu Turbo Mixer
Features :1. Three Functions in One Pump
- The KTM simultaneously draws in air and water, dissolves air with its turbine impeller, and pumps pressurized water to the flotation tank or other process
2. Highly Efficient Air-water Dissolution- Precision turbine pump technology and a unique
design make possible extremely high levels of efficiency in dissolving air into water
3. Simplified DAF Operation and Stable Pump Performance- The multifunctional KTM eliminates the need for
ancillary equipment such as air compressors, large saturation tanks with difficult level control, and truly simplifies DAF systems and their operation
4. Compact and Small Footprint- Easily retrofit or upgrade existing DAF systems
5. Minimal Power Consumption and Maintenance cost- Highly efficient process with small pump and motor, no
compressor power required, while the simple and robust structure of the KTM minimizes maintenance cost
“Suction, Mixing/Dissolving, and Pressurization” with just a single KTM!
Case Studies
Large scale DAF system High density micro-bubble generation
KTM Installed in parallel system
Working Principle/Mechanism
Performance Table
Recyclingwater
Suction Pressurize
Mixing and dissolving
Pressurizedwater
Air
Model
KTM20F/N
KTM25F/N
KTM32F/N
KTM40F/N
KTM50F1/S1
KTM50F2/S2
KTM50F3/S3
KTM65F2/S2
KTM80F/S
NL / min (Range)*L / min m3 / h kW / Poles NL / min (Range)*L / min m3 / h kW / Poles
50Hz Frequency 60Hz Frequency
Water Flow Rate Air Flow Rate Required Motor Power Required Motor PowerWater Flow Rate Air Flow Rate
1.0
1.5
3.0
4.8
8.0
12.0
15.0
20.0
42.0
17
25
50
80
133
200
250
333
700
1.3
2.0
4.0
6.4
11.0
16.0
20.0
27.0
56.0
(0 to 5)
(0 to 5)
(0 to 10)
(0 to 20)
(0 to 20)
(0 to 20)
(0 to 30)
(0 to 40)
(0 to 80)
0.75kW / 2P
1.5kW / 2P
2.2kW / 2P
3.7kW / 2P
5.5kW / 4P
7.5kW / 4P
11kW / 4P
15kW / 4P
22kW / 4P
1.3
2.5
4.0
7.0
11.5
15.0
18.0
28.0
58.0
22
42
67
117
192
250
300
467
967
1.7
3.3
5.3
9.3
15.0
20.0
24.0
37.0
77.0
(0 to 5)
(0 to 5)
(0 to 10)
(0 to 20)
(0 to 30)
(0 to 40)
(0 to 40)
(0 to 60)
(0 to 100)
0.75kW / 2P
1.5kW / 2P
2.2kW / 2P
3.7kW / 2P
7.5kW / 4P
11kW / 4P
15kW / 4P
18.5kW / 4P
30kW / 4P*Values in brackets show the recommended range of the air flow meter
KTM Micro-Bubble Generator(The leading solution for DAF systems & mixing applications)
Nikuni has developed a unique and compact Micro-Bubble Generator - the KTM - that creates pressurized air-enriched whitewater with highly reliable performance, insuring excellent stability in processes and systems such as DAF units in water treatment plants.
Quick Comparison: Conventional System vs KTM for DAF System
Conventional system KTM
Major applications for DAF- Waste Water Treatment Plants for Food, Beverage, Dairy, Seafood, Poultry Processing, Laundries, Bakeries etc.
- Drinking Water Treatment Plant
- Desalination Plant
- Municipal Waste Water Plant and Power Station
- Automotive and Chemical Plant
- Petroleum or Oil & Gas Plant
- Paper Mill or Textile Industries
Other applications
- Ozone Water Processes - Dissolved Gas Flotation Systems - Oxygenation / Deoxygenation - Various Gas-Liquid / Liquid-Liquid Solutions - Hotel & SPA Facilities
Dimensions
Models: KTM20F/N to KTM40F/N
Models: KTM50F1/S1 to KTM80F/S
Advantages of KTM- Eliminate Compressor/Ejector, Static Mixer and
Saturation Vessel
- Easily retrofit to existing systems
- Improve performance of entire DAF system
- Easy operation & maintenance due to simple structure of KTM
- Save space with small footprint & compact size
General centrifugal pump /multi-stage pump
To flotation tank
Level gauge
Static mixer Relief valve
Air supplyCompressor
Ejector
Recycling water(From flotation tank)
Pressure vessel /Saturation tank
KTM
To flotation tank
Air flow meter /Rotameter
Excess air releasing valve and tank
Air in-take nozzle
Recycling water(From flotation tank)
ModelKTM20F/NKTM25F/NKTM32F/NKTM40F/N
kW PY
63708085
FC
95105120130
MH
140150150180
L
533587
597.5692
KL
146147147154
VM
225240240310
VN
385430430616
Weight
17202130
0.751.52.23.7
Note: The motor weights are not included. The motors shall be prepared by purchasers.Note: KL & L dimensions shown for reference only, will vary depending on actual motor size
(units: mm, kg)
Note: The motor weights are not included. The motors shall be prepared by purchasers.Note: KL & L dimensions shown for reference only, will vary depending on actual motor size
Model
KTM50F1/S1
KTM50F2/S2KTM50F3/S3
KTM65F2/S2
KTM80F/S
kW PY
160160170170170190190180180
FC
230230240240240240240280280
MH
204204204245245300300300360
L
836874874
1027.51027.51276.5135313561429
KL
189189189
257.5257.5256335279314
VM
352352352404404512512512430
VN
690690690878878
1285128512851250
Weight
9090
110120130240250300300
5.57.57.5111515
18.52230
(units: mm, kg)KL
FC
PY
VM
L
MH
VN
KL
FC
PY
VM
L
MH
VN
The contents of this catalog may be changed without any notice.
2018.07
Overseas Subsidiaries
Head Office
Nikuni Co., Ltd. (Japan)
Headquarters : 843-5, Kuji, Takatsu-ku, Kawasaki, Kanagawa, 213-0032 Japan
Tel: +81-44-833-6500 Fax: +81-44-811-2212
Sales office : 2F Inoue Bldg. No.3, 5-8-1 Futako, Takatsu-ku, Kawasaki, Kanagawa, 213-0002 Japan
Tel: +81-44-833-6500 Fax: +81-44-833-6482
www.nikunijapan.com
Nikuni Taiwan Co., Ltd.
No.71-56, Nanshi, Neighborhood 5, Nanshi Village, Linkou District, New Taipei City, Taiwan, R.O.C.Tel: +886-2606-9385 Fax: +886-2606-9386
Nikuni America, Inc.
1878 S. Elmhurst Rd., Mt. Prospect, IL 60056Tel: +1-224-404-4051 Fax: +1-847-378-8007 [email protected]
www.nikuniamerica.com
www.nikuni-taiwan.com
Size of Air-intake Nozzle
ModelKTM20F/NKTM25F/NKTM32F/NKTM40F/NKTM50F1/S1 to KTM50F3/S3KTM65S2/F2KTM80S/F
Drawing Length (L1) Dia.(D)
Fig. A
Fig. B
121121121121129183193
R1/4BR1/4BR1/4BR1/4BR1/4BRc3/8Rc3/8
Recommended Size of Separation TankModel
KTM20F/NKTM25F/NKTM32F/NKTM40F/NKTM50S/F1KTM50F2/S2, KTM50F3/S3KTM65S2/F2KTM80S/F
A (mm) B (mm) Capacity (Liter)
230300320420800900
12001400
115165215270320460580730
248
2060
140300500
PressurizedWater Inlet
PressurizedWater Outlet
Excess Air Release Point
øA
B
Required & Recommended Accessories
Excess air separation tankSee table below for recommended tank size
Install a valve or air vent to release excess air during operation.
Pressure gaugeRange: 0 MPa / 0 bar / 0 psi to 1.0 MPa / 10 bar / 150 psi
Air flow meterRefer to performance table on page 3 for selection
Solenoid valveTo prevent backflow Settings: Pump start OPEN Pump stop CLOSE
Compound gaugeRange: -0.1 MPa / -1 bar / -15 psi to 0.25 MPa / 2.5bar / 35 psiSee note below for adjustment
Note: slightly close suction valve to create vacuum (negative pressure) in suction line during operationOptimal pressure is -0.02 MPa / -0.2 bar / -2.9 psi
Air-intake nozzleSupplied as optional accessory upon request
L1
DFig. A Fig. B
L1
D
(units: mm)