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Defoaming, Degassing Pump, Degassing Equipment


Defoaming, Degassing Pump
DP, ASP types (PAT.)

Highly efficient and quick degassing of gas-dissolved liquid

Defoaming, Degassing Pump DP type Defoaming, Degassing Pump ASP type

Patented in Japan, U.S.A., other

Bore

15-80mm(1S-2.5S)

Total head

0.1MPa

Capacity

0.01-0.15m3/min


>Selection & Dimensions

This defoaming/degassing pump, with an interlocked vacuum pump, extracts and discharges even dissolved gas in liquid with surprising efficiency.

Degasses liquid mechanically without using any chemical additive such as hydrazine. Therefore it is safe, does not cause contamination, and greatly reduces maintenance costs.
We also manufacture pumps that meet sanitary specifications.

Principle of degassing (PAT.)
DP
type

When pumping liquid flows through the orifice into the intake part of the pump, the dissolved gas in the liquid is separated from the liquid by decompression, and the generated gas-liquid mixture is fed to the inducer.

The liquid in the gas-liquid mixture is pushed against the periphery and stratified by rotation of the inducer, and the gas accumulates in the central area of the casing at the same time.

The gas remaining in the liquid is further separated from the liquid, as such liquid stratum is broadly exposed to high vacuum.

The gas is then drawn out by the vacuum pump through the impeller.

Any remaining liquid in the gas drawn out by the vacuum pump is separated by the impeller, and returned to the intake side of the inducer.

ASP type

Defoaming/Degassing Pump ASP type


Principle of Defoaming/Degassing Pump



Surprising degassing efficiency!
Surprising degassing efficiency, ASP type, DP type
The above is a typical example of defoaming/degassing pump's degassing performance.
Please contact us for more information.
 

The outstanding degassing power is evident by the reduction of dissolved oxygen from a near 8mg/L at the intake side (raw water at 20 degree C) to 0.5mg/L or less at the outlet side.


Defoaming of thickener solution



We are holding an "Online Exhibition" where you can experience the same kind of tour as a real exhibition on the web.
Many videos showing actual examples of operation for processing various liquids and evaluation methods for defoaming and degassing results are available.
(> "Online Exhibition" page)

Continuous defoaming/degassing can be done easily and at low cost even for food and beverage processing!
YOKOTA defoaming/degassing technology is high-profile new technology that has been featured in news articles.
For details of the news articles, please refer to "Current Topics: Defoaming, Degassing".

Inquiries

:

Overseas team

Tel

:

+81 82-241-8672


19th Nissyoku Excellent Food Machinery/Material Award in the machinery category.The "YOKOTA Defoaming/Degassing Pump ASP type" received the 19th Nissyoku Excellent Food Machinery/Material Award in the machinery category.

The 19th Nissyoku Excellent Food Machinery/Material Award ceremony, established by the Japan Food Journal Co. Ltd., was held September 9th, 2016 in the Dai-ichi Hotel, Tokyo (Tokyo Minato Ward, Shinbashi) where the company's Defoaming/Degassing Pump ASP Type received the award in the machinery category.

The Nissyoku Excellent Food Machinery/Material Award was established by the Japan Food Journal Co. Ltd., in 1998, aimed at the development of machinery and robots supporting the food industry and materials industry, and to reward and show appreciation for their contributions, with this year being the 19th time that the award was presented. The target products include all machinery/robots, intermediate materials/sub-intermediate materials, and the software utilized by them, which are useful to the quality improvement of food products and support the food industry, such as food product-related machinery/robots/apparatus and their software, intermediate materials/sub-intermediate materials for packaging containers, food additives, essence, food ingredients, and functional raw materials. The awards are decided by a selection committee made up of representatives in various food industries and academics who discuss with and consult each other in reaching decisions.

The company's "Defoaming/Degassing Pump ASP Type" enables the instant and continuous removal of wasteful foam, bubbles and gas occurring in the food product manufacturing process, and it has been credited with contributing to the improvement of product quality and production efficiency, which led to it winning the 19th Nissyoku Excellent Food Machinery/Material Award in the machinery category.

Inquiries

:

Overseas team

Tel

:

+81 82-241-8672

 

Applications

Defoaming/degassing treatment of liquid foods and dairy products in each production process such as boiling, immersion, extraction, oil extraction, mixing, fermentation, and preservation; Defoaming treatment and transfer of liquid products before bottling
<Application example>
Milk, soy milk, fruit juice, vegetable juice, vegetable paste, mustard, egg mixture, gelatin, milk drink, ketchup, various juices, tea, fermented liquid, yeast liquid, cream, jelly, vinegar, soy sauce, various seasonings, other

Supply of degassed water for high quality (high transparency) ice making

Prevention of malfunction of various measuring instruments (flow meter, density meter, other)

Defoaming/degassing and transfer of various raw material liquids
<Application example>
Various coating liquids, water-based paints, UV curable paints, urethane-based paints, plating liquids, pigments, adhesives, chemical raw materials, grinding oil, light oil, water-based polymers, insulating oil, desulfurization liquid, rinse, detergent, gel, calcium carbonate, other

Outstanding performance is also demonstrated in applications such as extraction from sealed tanks (vacuum tanks), and suction and transfer of liquid containing large amounts of gas, foam and bubbles.




YOKOTA's proposal: Troubled with stubborn foam and bubbles ? ........ The ASP type pump is the solution to the problem.

What if the ASP type pump, originally designed for degassing, is applied to defoaming ?
As expected, the defoaming tests have proven excellent defoaming performance as indicated below.


I. Examples of defoaming in the actual liquid (Click on the picture for enlargement. )

1. Soy milk 2. Beverage concentrated liquid
Defoaming of Soy milk
Defoaming of Beverage concentrated liquid
90 degree C, Specific gravity 1.02 (before
defoaming 0.6), Viscosity 30mPa-s
30 degree C, Specific gravity 1.22, Viscosity
500mPa-s, Air-content ratio 10%
Improvement of production efficiency Enhancement of yield rate
3. Gelatin products 4. Pickling liquid
Defoaming of Gelatin products
Defoaming of Pickling liquid
70 degree C, Specific gravity 1.28, Viscosity
2000mPa-s, Micro foam
6 degrees C, Specific gravity 1.1, Viscosity
80mPa-s
Improvement of quality (commodification with
high transparency)
Improvement of quality
5. Cream (food) 6. Egg yolk
Defoaming of Cream
Defoaming of Egg yolk
50 degree C, Specific gravity 1.2, Viscosity
4000mPa-s, Micro foam
5 degree C, Specific gravity 1.0, Viscosity
7000mPa-s
Improvement of quality Improvement of quality
7. Mekabu (thick seaweed leaves) 8. Water-soluble paint
Defoaming of Mekabu
Defoaming of Water-soluble paint
15 degree C, Specific gravity 1.07 (before
defoaming 0.8)
Room temperature, Specific gravity 1.2,
Viscosity 30mPa-s
Improvement of filling defect Improvement of coating defects
9. Water-soluble paint 10. Solvent-based urethane paint (including MEK)
Defoaming of Water-soluble paint
Defoaming of Solvent-based urethane paint
Room temperature, Specific gravity 1.1,
Viscosity 400mPa-s
30 degree C, Specific gravity 1.1, Viscosity
3000mPa-s
Recycling of recovered paint Improvement of coating defects (Shortening
of defoaming time)
11. Adhesive 12. Glue
Defoaming of Adhesive
Defoaming of Glue
20 degree C, Specific gravity 1.04, Viscosity
1100mPa-s
25 degree C, Specific gravity 1.2, Viscosity
10000mPa-s
Improvement of coating defects Improvement of coating defects
13. Natural resin 14. Facial cleansing gel
Defoaming of Natural resin
Defoaming of Facial Cleansing Gel
75 degree C, Specific gravity 1.07,
Air-content ratio 15%
Room temperature, Specific gravity 1.0,
Viscosity 4000mPa-s
Improvement of working efficiency
(filling defects)
Stabilization of filling amount
15. Gel (pharmaceuticals) 16. Grease
Defoaming of Gel
Defoaming of Grease
30 degree C, Specific gravity 1.1, Viscosity
30000mPa-s
25 degree C, Specific gravity 0.9, Viscosity
unmeasurable
Improvement of measurement precision Improvement of quality defects

The above is defoaming example by ASP type. Please contact us for more information.


II. Examples of defoaming test

Defoaming test equipment (ASP-0310 3.7kW-2900min-1 / Water ring vacuum pump 3.7kW)

Defoaming test equipment (ASP-0310 / water ring vacuum pump)


Test results with various kinds of liquid are shown in Fig.1-Fig.3.
Curves on the left side of each figure show the relation between flow rate and total head, which vary depending on gas amounts (0%, 50%, 60%, 70%).
A curve on the right side of each figure shows the relation between the gas amount (%) at the intake side and the gas amount (%) at the outlet side.
Calculation of defoaming efficiency is as follows:
For example, if the gas amount is 70% at the intake side and 20% at the outlet side, then,

Defoaming efficiency = 1 - (Gas amount at outlet side / Gas amount at intake side) = 71.4%



Fig.1 Defoaming of normal water

Defoaming, Degassing Pump, Degassing Equipment / Defoaming of normal water

The graph indicates removal of approx. 95-98% of foam (gas bubbles) from normal water.



Fig.2 Defoaming of green tea

Defoaming, Degassing Pump, Degassing Equipment / Defoaming of green tea

The graph indicates removal of approx. 92-95% of foam from green tea in a condition ready for consumption (tea powder dissolved at the ratio of 0.55g powder/80cc water).



Fig.3 Defoaming of detergent

Defoaming, Degassing Pump, Degassing Equipment / Defoaming of detergent

The graph indicates removal of approx. 67-72% of foam from detergent dissolved in water at 1% density. Despite the propensity of detergent to produce large quantities of difficult-to-remove foam, our degassing equipment performed well.


The above test results prove our degassing equipment's surprising defoaming efficiency as well as its capability of continuous processing.

Moreover, YOKOTA Degassing Equipment enables remarkable cost reduction in the processing of various foaming liquids.

No clogging problems like that with membrane type equipment, no troublesome maintenance required, and the pumps easily meet sanitary specifications.

Time required to eliminate foam and bubbles has been shortened, making it unnecessary to install a large tank for stabilization of liquid.

The stirring operation of the built-in impeller simultaneously provides favorable results such as liquid homogenization and reduced particle size.

With the self-priming and pressurized discharge capabilities, all processes including suction, stirring, defoaming and transfer of liquid are achieved in this single, compact pump, unlike conventional methods which require installation of several components.


Use of YOKOTA Degassing Equipment greatly reduces costs of liquid processing.


Equipment suitable for defoaming relatively large amounts of liquid is also available.
For details, please refer to Defoaming Pump UPSA type.


Selection chart & Outer dimensions


DP type

DP, Defoaming, Degassing Pump, Degassing Equipment

Unit: mm
Model No. Specifications (normal water) Base plate Motor Weight
(kg)
Flow
rate
(L/min)
Total
head
(MPa)
Rotation
speed
(min-1)
Bore
Suction/Discharge/VP
A B C D E F G K L M N P P' S J Frame
No.
Output
(kW)
DP-0150 10 0.05 1800 Rc1 /Rc1/2 /Rc1/2 64 174 170 112 150 120 28 100 800 310 600 90 16 260 231 132S 5.5 330
DP-0300 35 0.05 1800 25 /25 /25 86 220 170 118 185 160 28 100 800 310 600 90 16 260 278 132S 5.5 340
DP-0500 60 0.05 1800 50 /40 /40 89 244 195 130 210 170 26 125 1050 310 800 120 19 315 174 132M 7.5 390
DP-0600 90 0.05 1800 65 /50 /50 100 286 220 150 235 180 22 150 1250 360 950 120 19 340 208 160L 15 570
DP-0800 150 0.05 1800 80 /65 /65 112 314 250 170 270 200 22 200 1350 400 950 150 25 400 260 180L 30 1200



DP-S type (Sanitary specification)

DP, Defoaming, Degassing Pump, Degassing Equipment

Unit: mm

Model No.
Specifications (normal water)
Base plate
Motor Weight
(kg)
Flow
rate
(L/min)
Total
head
(MPa)
Rotation
speed
(min-1)
Bore
Suction/Discharge/VP
A
B
C
D
E
F
G
K
L
M
P
S
J
Frame
No.
Output
(kW)
DP-0150S
10
0.05
1800
15A/15A/1S
71
181
170
112
150
140
28
80
850
300
256
426
138
132M
5.5
215
DP-0300S
35
0.05
1800
1S/1S/1S
71
205
170
118
165
145
28
80
850
300
256
426
163
132M
5.5
225
DP-0500S
60
0.05
1800
2S/1.5S/1.5S
77
232
195
130
180
145
26
80
1150
400
256
451
92
160L
15
260
DP-0600S 90
0.05
1800
2.5S/2S/2S
83
269
220
150
210
165
22
80
1200 400 256
476
88
160L 15
380
DP-0800S 150
0.05
1800
2.5S/2.5S/2.5S
81
283
250
170
240
185
22
250
1450 550 225
475
48
200L 37
780

The DP-0800S type is equipped with a channel base plate.



ASP type

ASP, Defoaming, Degassing Pump, Degassing Equipment

Unit: mm
Model No. Specifications (normal water) Base plate Motor Weight
(kg)
Flow
rate
(L/min)
Total
head
(MPa)
Rotation
speed
(min-1)
Bore
Suction/Discharge/VP
A B C D E F G K L M N P P' S J Frame
No.
Output
(kW)
ASP-0115 10 0.05 2900 15 /15 /20 270 126.5 170 164 80 94 40 140 730 300 450 72 18 406 154 90L 2.2 145
ASP-0310 35 0.1 2900 25 /25 /25 217.5 92.5 170 160 90 130 55 170 880 350 540 82 23 422 115 112M 3.7 170
ASP-0510 60 0.1 2900 50 /40 /40 255 120 170 195 110 170 52.5 220 1130 525 690 112 30 477 50 132S 7.5 230
ASP-0610 90 0.1 2900 65 /50 /50 298 139 195 225 125 185 60 275 1390 525 840 126 30 546 -39 160M 15 400



ASP-S type (Sanitary specification)

ASP, Defoaming, Degassing Pump, Degassing Equipment

Unit: mm

Model No. Specifications (normal water) Base plate Motor Weight
(kg)
Flow
rate
(L/min)
Total
head
(MPa)
Rotation
speed
(min-1)
Bore
Suction/Discharge/VP
A
B
C
D
E
F
G
K
L
M
P
S
J
Frame
No.
Output
(kW)
ASP-0115S 10 0.05 2900 15A/15A/1S 245 101 170 135 80 75 40 80 700 230 236 541 269 90L 2.2
165
ASP-0310S
35
0.1
2900
1S/1S/1S
245
120
170
160
95
110
55
80
800
300
257
587
285
112M
3.7
185
ASP-0510S
60
0.1
2900
2S/1.5S/1.5S
278
143
170
190
110
115
52.5
80
617
321
132S 7.5
190
ASP-0610S 90 0.1 2900 2.5S/2S/2S 319 160 195 225 125 145 60 180 1100 400 280 700 270 160M 15 350


Note:
Specifications (flow rate, total head) and motor output power (kW) shown above are based on normal water at 20 degree C, degassed to the level of approx. 2mg/L. Such specifications and motor output power vary depending on viscosity, specific gravity and required level of degassing of the actual liquid handled. Please ask for details.


Specifications stated here may be subject to change without notice due to product improvement.


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