CN
Double-Stage Rotary Vane Vacuum Pump
Pumping Speed:4-78 m3/h（1.1-21.6 L/S）
Motor Power:0.37-2.2 kW
Extreme Pressure: 5*10-2-3 pa（0.5-3 hp）
- Overview
- Product Advantages
- Technical Parameters
- FAQ
Double-stage rotary vane pump consists of two compression chambers, the two chambers are connected in series before and after, and rotate in the same direction at the same speed, which is equivalent to two single-stage pumps connected in series, which improves the compression ratio, and the vacuum degree is higher than that of single-stage rotary vane vacuum pump.
1.Rotor is designed with anti-corrosion coating for corrosion resistance.
2. Gear pump forced constant pressure oil supply, stable operation under low vacuum.
3. Dual anti-oil-return valves protect vacuum systems from oil contamination after shutdowns.
Double-Stage Rotary Vane Vacuum Pump
| Item | Unit | DPZ4 | DPZ8 | DPZ16 | DPZ24 | DPZ30 | DPZ48 | DPZ65 | DPZ85 | DPZ300 | |
| Pumping Speed | 50Hz | m³/h | 4 | 8 | 16 | 24 | 30 | 48 | 65 | 85 | 280 |
| L/s | 1.1 | 2.2 | 4.4 | 6.6 | 8.3 | 13.3 | 18 | 23.6 | 77.7 | ||
| 60Hz | m³/h | 4.8 | 9.6 | 19.2 | 28.8 | 36 | 57.6 | 78 | 102 | 330 | |
| L/s | 1.3 | 2.6 | 5.2 | 7.9 | 9.9 | 16 | 21.6 | 28.3 | 91.6 | ||
| Limit Total Pressure-Shut Gas-Ballast | Pa | 5×10⁻² | 5×10⁻² | 4×10⁻¹ | 4×10⁻¹ | 4×10⁻¹ | 4×10⁻¹ | 4×10⁻¹ | 4×10⁻¹ | 5 | |
| Limit Total Pressure-Opening Gas-Ballast | pa | 3 | 3 | 8×10⁻¹ | 8×10⁻¹ | 8×10⁻¹ | 1.5 | 1.5 | 1.5 | 10 | |
| Power Supply | Single/Three-phase | Single/Three-phase | Single/Three-phase | Single/Three-phase | Single/Three-phase | Single/Three-phase | Three-phase | Three-phase | Three-phase | ||
| Motor Power | kW | 0.4/0.37 | 0.4/0.37 | 0.75/0.55 | 1.1/0.75 | 1.1 | 1.5 | 2.2 | 3 | 7.5 | |
| Inlet/Outlet Diameter | DN | KF16/25 | KF16/25 | KF25 | KF25/40 | KF25/40 | KF40 | KF40 | KF40 | ISO63 or G2' | |
| Oil Consumption | L | 0.6-1.0 | 0.6-1.0 | 0.9-1.5 | 1.3-2.0 | 1.3-2.0 | 3.3-4.5 | 3.3-4.5 | 3.3-4.5 | 7.0-9.0 | |
| Motor Speed | 50Hz | rpm | 1400 | 1400 | 1440 | 1440 | 1440 | 1440 | 1440 | 1440 | 1440 |
| 60Hz | rpm | 1720 | 1720 | 1720 | 1720 | 1720 | 1720 | 1720 | 1720 | 1720 | |
| Working Environment Temperature | ℃ | 5-40 | 5-40 | 5-40 | 5-40 | 5-40 | 5-40 | 5-40 | 5-40 | 5-40 | |
| Noise | dB | ≤56 | ≤56 | ≤58 | ≤58 | ≤58 | ≤62 | ≤62 | ≤65 | ≤73 | |
| Weight | kg | 19 | 21 | 30 | 35 | 43 | 62 | 65 | 65 | 225 | |
Frequently Asked Questions
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Q1: Are you a manufacturer or trading company? ▼A1: We are professional manufacturer with big modern factory in Shanghai, China. Both OEM & ODM service can be accepted.
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Q2: Warranty terms of your machine? ▼A2: One year for the whole machine and two years for screw air end, except consumable spare parts. We provide technical support according to your needs.
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Q3: Will you provide some spare parts of the machines? ▼A3: Yes. We provide spare parts for daily maintenance.
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Q4: What voltage can you provide? ▼A4: We can support 220V/380V/400V/415V/440V/480V/570V/600V/1000V 50HZ/60HZ. Send your requirements to our sales manager and we will customize it for you.
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Q5: How long will you take to arrange production? ▼A5: Delivery of standard goods within 7-10 working days, customization takes about 30 days.
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Q6: How to pay? ▼A6: T/T, L/C, D/P, Western Union, Apple pay, Google pay, PAYPAL, Credit Card and so on. We also accept USD, RMB, EUR and other currencies.
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Q7: Can you accept OEM/ODM orders? ▼A7: Yes, we have a professional design team, OEM/ODM orders are very welcome.
