NOTE
2H - here says TWO STAGE, H - says Single Stage
Â
THE GRAPH
DESCRIPTION:
Rotary Piston Vacuum Pump can not only be operated independently, but also be a backing pump when combined with Roots Vacuum Pump, Oil Boater Pump, Oil Diffusion Pump, The pump must be fitted with appropriate accessories if the exhausted gas is corrosive to ferrous metal, reactive with vacuum pump oil, or rich in vapor and dust.
Â
ADVANTAGES:
1. Sino-US technical cooperation
2. The highly complete varieties of Rotary Piston Vacuum Pumps
3. Seriated design, specialized manufacture, high cost performance
4. Advanced structure, excellent performance, easy to use, high reliability and durability
5. Best-selling for domestic and overseas: United States, Germany, Korea, Canada, Finland, lran, Austria, Russia and Taiwan etc.
PARAMETERS:
Model | Displacement | Ultimate Partial Pressure | Ultimate Total Pressure | Motor Power | Suction | Discharge | Cooling Water | |
L/s | CFM | Pa | Pa | kW | mm | mm | 15ºC kg/h | |
2H-8DVA | 8 | 17 | 0.05 | 1 | 1.1 | 40 | 25 | Air Cooled |
2H-15DV | 15Â | 32 | 0.05 | 1 | 2.2, 1.5 | 50 | 40 | 100 |
2H-15DVA | 15 | 32 | 0.05 | 1 | 2.2, 1.5 | 50 | 40 | Air Cooled |
2H-15DVW | 15 | 32 | 0.05 | 1 | 2.2, 1.5 | 50 | 40 | 100 |
2H-30DV | 30 | 65 | 0.05 | 1 | 4,3 | 63 | 50 | 200 |
2H-45DVA | 45 | 95 | 0.05 | 1 | 4 | 63 | 50 | Air Cooled |
2H-50DV | 50 | 105 | 0.05 | 1 | 5.5 | 80 | 63 | 300 |
2H-70DV | 70 | 150 | 0.05 | 1 | 7.5 | 80 | 63 | 400 |
2H-80DV | 85 | 180 | 0.05 | 1 | 7.5 | 80 | 63 | 500 |
2H-100DV | 100 | 210 | 0.05 | 1 | 11 | 100 | 80 | 600 |
2H-100DV3 | 100 | 210 | 0.05 | 1 | 9 | 80 | 63 | 600 |
2H-120DV | 120 | 255 | 0.05 | 1 | 11 | 100 | 80 | 600 |
2H-150DV | 150 | 320 | 0.05 | 1 | 15 | 125 | 100 | 800 |
2H-160DV | 160 | 340 | 0.05 | 1 | 15 | 125 | 100 | 800 |
2H-225DV | 225 | 480 | 0.05 | 1 | 22 | 150 | 100 | 1200 |
2H-340DV | 340 | 720 | 0.05 | 1 | 37 | 200 | 150 | 1800 |
2H-450DV | 450 | 950 | 0.05 | 1 | 45,55 | 200 | 150 | 2400 |
H-25DV | 25 | 52 | 0.5 | 3 | 2.2, 1.5 | 50 | 40 | 100 |
H-25DVA | 25 | 52 | 0.5 | 3 | 2.2, 1.5 | 50 | 40 | Air Cooled |
H-25DVW | 25 | 52 | 0.5 | 3 | 2.2, 1.5 | 50 | 40 | 100 |
H-50DV | 50 | 105 | 0.5 | 3 | 4,3 | 63 | 50 | 200 |
H-60DVA | 60 | 130 | 0.5 | 3 | 4 | 63 | 50 | Air Cooled |
H-70DV | 70 | 150 | 0.5 | 3 | 5.5 | 80 | 63 | 300 |
H-100DV | 105 | 223 | 0.5 | 3 | 7.5 | 80 | 63 | 400 |
H-105DV | 110 | 235 | 0.5 | 3 | 7.5 | 80 | 63 | 450 |
H-130DV | 130 | 275 | 0.5 | 3 | 9 | 80 | 63 | 500 |
H-150DVS | 150 | 320 | 0.5 | 3 | 11 | 100 | 80 | 600 |
H-150DV | 150 | 320 | 0.5 | 3 | 11,7.5 | 100 | 80 | 600 |
H-160DV | 160 | 340 | 0.5 | 3 | 11 | 100 | 80 | 600 |
H-160DVS | 160 | 340 | 0.5 | 3 | 11,7.5 | 100 | 80 | 600 |
H-215DV | 215 | 456 | 0.5 | 3 | 15 | 100 | 80 | 800 |
H-225DV | 225 | 480 | 0.5 | 3 | 15 | 125 | 100 | 800 |
H-300DV | 300 | 635 | 0.5 | 3 | 22 | 150 | 100 | 1200 |
H-450DV | 450 | 955 | 0.5 | 3 | 37 | 200 | 150 | 1800 |
H-600DV | 600 | 1280 | 0.5 | 3 | 45 | 200 | 150 | 2400 |
H-150DVF | 150 | 320 | 0.5 | 3 | 11 | 100 | 80 | 700 |
H-150 | 150 | 320 | 0.5 | 3 | 15 | 150 | 80 | 700 |
H-8A | 150, 180 | 320, 380 | 1 | 6 | 15,18.5 | 150 | 80 | 700 Â |
Â
APPLICATIONS:
Widely used in production and development of new materials, new technologies and new process for vacuum crystal pulling, vacuum coating, vacuum metallurgy, vacuum heat treatment, vacuum impregnation, vacuum drying, vacuum disillation, vacuum kneading, aerospace simulation experiments.




Standard: CE Mark, Spare Parts Of High Level
Delivery: Normally according to our factory production schedule, but we can follow your first order timeÂ
Warranty: If pump appear quality problems, free replacements of spare parts will be offered within one year
Â
WE CAN PROVIDE YOU
1. On-time Delivery, with More ChoiceÂ
2. Perfect Technical Support
3. Customized Vacuum Solutions and ServiceÂ
4. Samples Available
5. Â Long Quality GuaranteeÂ
6. Fast Response to Customers' Feedback in 12 hoursÂ
Â
DEVELOPMENT VACUUM EQUIPMENT CO., LTDÂ
ADD:DONGGANG INDZONE, TAIZHOU, ZHEJIANG, CHINA PC: 317106
TEL:+86-576-83598308 FAX:+86-576-83598309Â
Â
NOTE
2H - here says TWO STAGE, H - says Single Stage
Â
THE GRAPH
DESCRIPTION:
Rotary Piston Vacuum Pump can not only be operated independently, but also be a backing pump when combined with Roots Vacuum Pump, Oil Boater Pump, Oil Diffusion Pump, The pump must be fitted with appropriate accessories if the exhausted gas is corrosive to ferrous metal, reactive with vacuum pump oil, or rich in vapor and dust.
Â
ADVANTAGES:
1. Sino-US technical cooperation
2. The highly complete varieties of Rotary Piston Vacuum Pumps
3. Seriated design, specialized manufacture, high cost performance
4. Advanced structure, excellent performance, easy to use, high reliability and durability
5. Best-selling for domestic and overseas: United States, Germany, Korea, Canada, Finland, lran, Austria, Russia and Taiwan etc.
PARAMETERS:
Model | Displacement | Ultimate Partial Pressure | Ultimate Total Pressure | Motor Power | Suction | Discharge | Cooling Water | |
L/s | CFM | Pa | Pa | kW | mm | mm | 15ºC kg/h | |
2H-8DVA | 8 | 17 | 0.05 | 1 | 1.1 | 40 | 25 | Air Cooled |
2H-15DV | 15Â | 32 | 0.05 | 1 | 2.2, 1.5 | 50 | 40 | 100 |
2H-15DVA | 15 | 32 | 0.05 | 1 | 2.2, 1.5 | 50 | 40 | Air Cooled |
2H-15DVW | 15 | 32 | 0.05 | 1 | 2.2, 1.5 | 50 | 40 | 100 |
2H-30DV | 30 | 65 | 0.05 | 1 | 4,3 | 63 | 50 | 200 |
2H-45DVA | 45 | 95 | 0.05 | 1 | 4 | 63 | 50 | Air Cooled |
2H-50DV | 50 | 105 | 0.05 | 1 | 5.5 | 80 | 63 | 300 |
2H-70DV | 70 | 150 | 0.05 | 1 | 7.5 | 80 | 63 | 400 |
2H-80DV | 85 | 180 | 0.05 | 1 | 7.5 | 80 | 63 | 500 |
2H-100DV | 100 | 210 | 0.05 | 1 | 11 | 100 | 80 | 600 |
2H-100DV3 | 100 | 210 | 0.05 | 1 | 9 | 80 | 63 | 600 |
2H-120DV | 120 | 255 | 0.05 | 1 | 11 | 100 | 80 | 600 |
2H-150DV | 150 | 320 | 0.05 | 1 | 15 | 125 | 100 | 800 |
2H-160DV | 160 | 340 | 0.05 | 1 | 15 | 125 | 100 | 800 |
2H-225DV | 225 | 480 | 0.05 | 1 | 22 | 150 | 100 | 1200 |
2H-340DV | 340 | 720 | 0.05 | 1 | 37 | 200 | 150 | 1800 |
2H-450DV | 450 | 950 | 0.05 | 1 | 45,55 | 200 | 150 | 2400 |
H-25DV | 25 | 52 | 0.5 | 3 | 2.2, 1.5 | 50 | 40 | 100 |
H-25DVA | 25 | 52 | 0.5 | 3 | 2.2, 1.5 | 50 | 40 | Air Cooled |
H-25DVW | 25 | 52 | 0.5 | 3 | 2.2, 1.5 | 50 | 40 | 100 |
H-50DV | 50 | 105 | 0.5 | 3 | 4,3 | 63 | 50 | 200 |
H-60DVA | 60 | 130 | 0.5 | 3 | 4 | 63 | 50 | Air Cooled |
H-70DV | 70 | 150 | 0.5 | 3 | 5.5 | 80 | 63 | 300 |
H-100DV | 105 | 223 | 0.5 | 3 | 7.5 | 80 | 63 | 400 |
H-105DV | 110 | 235 | 0.5 | 3 | 7.5 | 80 | 63 | 450 |
H-130DV | 130 | 275 | 0.5 | 3 | 9 | 80 | 63 | 500 |
H-150DVS | 150 | 320 | 0.5 | 3 | 11 | 100 | 80 | 600 |
H-150DV | 150 | 320 | 0.5 | 3 | 11,7.5 | 100 | 80 | 600 |
H-160DV | 160 | 340 | 0.5 | 3 | 11 | 100 | 80 | 600 |
H-160DVS | 160 | 340 | 0.5 | 3 | 11,7.5 | 100 | 80 | 600 |
H-215DV | 215 | 456 | 0.5 | 3 | 15 | 100 | 80 | 800 |
H-225DV | 225 | 480 | 0.5 | 3 | 15 | 125 | 100 | 800 |
H-300DV | 300 | 635 | 0.5 | 3 | 22 | 150 | 100 | 1200 |
H-450DV | 450 | 955 | 0.5 | 3 | 37 | 200 | 150 | 1800 |
H-600DV | 600 | 1280 | 0.5 | 3 | 45 | 200 | 150 | 2400 |
H-150DVF | 150 | 320 | 0.5 | 3 | 11 | 100 | 80 | 700 |
H-150 | 150 | 320 | 0.5 | 3 | 15 | 150 | 80 | 700 |
H-8A | 150, 180 | 320, 380 | 1 | 6 | 15,18.5 | 150 | 80 | 700 Â |
Â
APPLICATIONS:
Widely used in production and development of new materials, new technologies and new process for vacuum crystal pulling, vacuum coating, vacuum metallurgy, vacuum heat treatment, vacuum impregnation, vacuum drying, vacuum disillation, vacuum kneading, aerospace simulation experiments.




Standard: CE Mark, Spare Parts Of High Level
Delivery: Normally according to our factory production schedule, but we can follow your first order timeÂ
Warranty: If pump appear quality problems, free replacements of spare parts will be offered within one year
Â
WE CAN PROVIDE YOU
1. On-time Delivery, with More ChoiceÂ
2. Perfect Technical Support
3. Customized Vacuum Solutions and ServiceÂ
4. Samples Available
5. Â Long Quality GuaranteeÂ
6. Fast Response to Customers' Feedback in 12 hoursÂ
Â
DEVELOPMENT VACUUM EQUIPMENT CO., LTDÂ
ADD:DONGGANG INDZONE, TAIZHOU, ZHEJIANG, CHINA PC: 317106
TEL:+86-576-83598308 FAX:+86-576-83598309Â
Â
Counter Flow Closed Cooling Tower
Let's look at the comparison of electric energy, electric energy is not different, because they are all through the same power equipment to operate the equipment, the power of the two is similar, the running time is the same, basically the energy consumption is about the same.
To sum up, for the Closed Cooling Tower energy saving accounting can be strong to open the tower out, and, today are advocating energy conservation and environmental protection, this is the general trend, so the closed cooling tower is more and more favored by the majority of users.
Counter Flow Closed Cooling Tower,Closed Type Cooling Tower,Cooling Tower Closed Loop System,Closed Circuit Cooling Tower
Wuxi Ark Fluid Science Technology Co., Ltd. , https://www.fangzhou-arkfluid.com