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255cfm Rotary Piston Vacuum Pump
**Product Specifications:**
- **Model No.:** 2H-70DV
- **Ultimate Partial Pressure:** 0.05 PA
- **Ultimate Total Pressure:** 1 PA
- **Motor Power:** 22 kW - 4P
- **Suction Port:** 150 mm
- **Discharge Port:** 100 mm
- **Cooling Water (15°C, kg/h):** 1200
- **Piston Type:** 3-Piston
- **Trademark:** DVE
- **Transport Package:** Neutral Wood Case
- **Certification:** CE, ISO9001
- **Origin:** Zhejiang, China
- **HS Code:** 8414100090
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**DESCRIPTION:**
The Rotary Piston Vacuum Pump is a versatile and reliable equipment that can be used independently or as a backing pump when paired with Roots Vacuum Pumps, Oil Boaster Pumps, or Oil Diffusion Pumps. For optimal performance, it's essential to use appropriate accessories if the exhaust gas is corrosive, reactive with vacuum pump oil, or contains high levels of vapor and dust.
**PARAMETERS:**
Below is a detailed table of specifications for various models:
| Model | Displacement (L/s) | Displacement (CFM) | Ultimate Partial Pressure (Pa) | Ultimate Total Pressure (Pa) | Motor Power (kW) | Suction (mm) | Discharge (mm) | Cooling Water (kg/h) |
|--------------|--------------------|--------------------|-------------------------------|-----------------------------|------------------|--------------|----------------|----------------------|
| 2H-8DVA | 8 | 17 | 0.05 | 1 | 1.1 | 40 | 25 | Air Cooled |
| 2H-15DV | 15 | 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-120DV | 120 | 255 | 0.05 | 1 | 11 | 100 | 80 | 600 |
| 2H-150DV | 150 | 320 | 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-50DV | 50 | 105 | 0.5 | 3 | 4, 3 | 63 | 50 | 200 |
| 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-150DV | 150 | 320 | 0.5 | 3 | 11 | 100 | 80 | 600 |
| H-225DV | 225 | 480 | 0.5 | 3 | 15 | 150 | 100 | 800 |
| H-300DV | 300 | 635 | 0.5 | 3 | 22 | 150 | 100 | 1200 |
**NOTE:**
"Ultimate Partial Pressure" refers to the pressure measured by a McLeod gauge, while "Ultimate Total Pressure" is measured using a full-pressure vacuum gauge such as a thermal conductivity gauge.
**CURVE:**
**ADVANTAGES:**
1. Sino-US technical cooperation
2. Wide range of rotary piston vacuum pumps
3. Series design, specialized manufacturing, and high cost-effectiveness
4. Advanced structure, excellent performance, easy to use, and long service life
5. Popular in both domestic and international markets, including the US, Germany, Korea, Canada, Finland, Iran, Austria, Russia, and Taiwan.
**STRUCTURES:**
**APPLICATIONS:**
This pump is widely used in the production and development of new materials, technologies, and processes such as vacuum crystal pulling, vacuum coating, vacuum metallurgy, vacuum heat treatment, vacuum impregnation, vacuum drying, vacuum distillation, vacuum kneading, and aerospace simulation experiments.
**PHOTOS:**
**DVE SERVICES:**
- **Sea Port:** Ningbo/Shanghai, China
- **Standard:** CE Mark, High-Level Spare Parts
- **Delivery:** Typically based on our production schedule, but we can adjust according to your first order time.
- **Warranty:** Free spare parts replacement within one year if quality issues arise.
**WE CAN PROVIDE YOU:**
1. Timely delivery with more options
2. Excellent technical support
3. Customized vacuum solutions and services
4. Available samples
5. Long-term quality guarantee
6. Fast response to customer feedback within 12 hours
**DEVELOPMENT VACUUM EQUIPMENT CO., LTD**
Address: Donggang Industrial Zone, Taizhou, Zhejiang, China
Postal Code: 317106
Tel: +86-576-83598308
Fax: +86-576-83598309