What is the difference between an oil vapor booster pump and a diffusion pump?

The main differences between oil vapor booster diffusion pump and diffusion pump are as follows:

1.Oil vapor booster vacuum pump is referred to as oil diffusion pump. When the low vacuum is 10~10-2Pa, the working performance is the best, and the ultimate vacuum is 5*10-3Pa; while the diffusion pump is the best working performance when the high vacuum is above 0.133322Pa. Good, the ultimate vacuum is 7.5*10-4Pa;

2.The oil vapor booster vacuum pump is equipped with a combination of multiple heaters in parallel, and the heater can be replaced without stopping. The heating pipe of the pump oil temperature control overheating protection device can also be prepared as required. The diffusion pump needs to be shut down to disassemble the pump and replace the heating furnace plate;

3.The oil vapor booster diffusion vacuum pump can be started only when the fore-stage vacuum pump of the oil vapor booster vacuum pump needs a vacuum degree of >133Pa, while the starting working vacuum of the fore-stage vacuum pump of the diffusion pump needs >40Pa;

Follow as EVP VACUUM Z-Series oil vapor booster diffusion pump and diffusion pump pictures:

EVP vacuum new oil free scroll vacuum pump on the market

EVP VACUUM Z-Series oil vapor booster diffusion pump

Whether it is the oil vapor booster diffusion pump or the diffusion pump, the following matters should be paid attention:

(1) Regularly check the performance of the oil vapor booster pump/diffusion pump oil, and replace the diffusion pump oil that meets the requirements, such as HPV-K3, silicone oil.

(2) The cooling water of the oil vapor booster diffusion pump/diffusion pump must be unblocked before heating and during the working process. After the heating is stopped, the cooling water must be turned off after the pump oil has been completely cooled. , see EVP manual for details.

(3) When the oil of the oil vapor booster diffusion pump/diffusion pump stops working, the inside of the pump should be kept in a vacuum state to avoid the oxidation of the pump oil caused by releasing it into the atmosphere, so as to prolong the life of the pump oil.

(4) Heating can only be carried out when the critical required fore-stage vacuum is reached, otherwise the oxidation of the pump oil will be accelerated.

(5) The gas being pumped should be dry, non-corrosive and dust-free.

(6) When the performance of the oil vapor booster diffusion pump/diffusion pump suddenly declines, check whether the heater is damaged, the water is cut off, the water pressure is too low, and the cooling water temperature is too high; Whether the oil is qualified and whether the pipeline is leaking.

(7) If the oil of the newly installed oil vapor booster pump/diffusion pump cannot reach the ultimate vacuum degree, check whether the seal is reliable, whether the assembly is correct, and whether there is leakage.

(8) During the working process, attention should be paid to the working condition of the fore-stage vacuum pump, because the damage of the fore-stage vacuum pump will directly affect the normal operation of the oil vapor booster pump/diffusion pump oil.

(9) Cooling water inlet temperature: about 15°C; cooling water outlet temperature: below 30°C, a good cooling effect is the guarantee for the normal operation of the pump, and the cooling effect is not good. go.

(10) When the oil of the oil vapor booster diffusion pump/diffusion pump stops working, the pump must be fully cooled before closing the backing pump to prevent the oxidation of the pump oil.

(11) When the oil of the oil vapor booster diffusion pump/diffusion pump is not used for a long time, the pump should be pumped to a low vacuum state before storage, and the remaining water in the cooling water pipe should be purged with compressed air to prevent corrosion of the water cooling system and pump body

EVP oil vapor booster pump and diffusion pump are widely used in vacuum coating, vacuum degassing, vacuum forming, vacuum leak detection, etc.

If you have any questions about vacuum pumps, please feel free to inquire.

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