Piston vacuum pump is often used in large-scale vacuum equipment because of its structural characteristics and much larger capacity than rotary vane pump. There are two types of piston vacuum pump: single-stage piston vacuum pump and double-stage piston vacuum pump. The limit pressure of single-stage piston vacuum pump is less than 0.6Pa for small pump, 1.3Pa for large pump and 0.06Pa for double-stage piston vacuum pump. At present, the maximum pumping speed of bipolar piston vacuum pump is 300 L/S. There are many factors that determine the price of piston vacuum pump, such as pump material, pressure, flow rate and so on. The price span is also very large.
Piston vacuum pump is a high vacuum pumping pump, which is a series of oil seal sliding valve pumps. It can be pumped below 1.33 Pa, so it is suitable for all kinds of high vacuum requirements.
The mechanical motion system of piston vacuum pump is made by introducing advanced international technology. Rotary compressed air principle combined with Roche’s law (oil splash lubrication) and Newton’s law of inertia is used. Two-stage double cooling and lubrication are used. Using power is only half of W series (reciprocating pump) and X series (vane pump) (same pumping rate). It has the characteristics of balance, reliability, low noise, small power and long service life.
2H Piston Vacuum Pump
Piston Vacuum Pump parameter：
| Model | Ultimate pressure | Pumping speed | Inlet diam | Outlet diam | Motor power | Cooling water consumption | weight | |
| Pa | Torr | L/s | mm | mm | kw | kg/h | kg | |
| 2H-15 | 6×10-2 | 4.5×10-4 | 15 | 50 | 40 | 2.2 | Air-cooling | 175 |
| 2H-30 | 6×10-2 | 4.5×10-4 | 30 | 63 | 50 | 4 | 100 | 380 |
| 2H-70 | 6×10-2 | 4.5×10-4 | 70 | 80 | 50 | 7.5 | 150 | 710 |
| 2H-120 | 6×10-2 | 4.5×10-4 | 120 | 100 | 80 | 15 | 200 | 960 |
| 2H-150 | 6×10-2 | 4.5×10-4 | 150 | 100 | 80 | 15 | 200 | 1020 |
The piston vacuum pump body and other main parts are made of wear-resisting high silicon vacuum casting, which is finished by surface treatment and one-time clamping by processing center. It has the characteristics of high precision, low wear and less maintenance. This vacuum pump is widely used in Dyestuff Chemical industry, food additives, electronics, vacuum plating, paint, medicine, fine chemical industry and other industries. It is the best choice for domestic vacuum pump industry.
Piston vacuum pump is a device that improves, generates and maintains vacuum in a closed space by various methods. The price of piston vacuum pump is determined by pumping speed, rotor, pumping effect and structure. EVP piston vacuum pump has a complete range of types, and can provide different types of vacuum pumps according to different working pressure range and different working requirements.
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