BSV two stage rotary vane vacuum pump advantages

working principle

Due to the eccentricity effect

When rotor from 0°to  90°:V      —- Gas suction stage
When rotor from 90°to 360 :V    —- Gas compression stage

 

BSV Series Features-Vanes

The Vanes of BSV series vacuum pump adopt the imported special materials which have more stronger wear resistance than the other china manufacturers.
Applicable temperature ( ℃ ) :  ≤160
Brinell hardness ( HB )            :    232
Coefficient of thermal expansion (1/℃) :  room temp. 125 ℃
Vertical and horizontal direction: 7.4×10-6mm
Layer direction:                            7.5×10-5mm

To slot in the middle of vanes which takes advantage of pressure difference between the container so that to make the vanes more closely fit with the ylinder.
Advantages:
1. To avoid damage caused by the spring broken;
2. The vibration and noise are much lower than the other china competitors;
3. Its moderate elasticity and high abrasion resistance make the life of vanes increased greatly;
4. To avoid the pump deformation due to inhalation of water or lack of oil.

BSV Series Features–Bearing

Sliding Bearing

1. Made in SIC, Commonly known as “ceramic bearing” ;
2. The wearability of ceramic bearing is very strong, it hardly wears out in use, greatly improve the service life of pump.

BSV Series Features-Exhaust Valve Plate

The second exhaust valve plate:

Adopted the imported aerospace special valve plate material from Sweden, which  have strong resistance to fatigue and corrosion resistance. Ensure that the pump runs at a high load for a long time.

BSV Series Features- Forced Feed Oil
Forced Feed oil:

It is effective to guarantee the lubrication, sealing and oil temperature control of vacuum pump, ensuring the long-term and the stable operation for vacuum pump under high load situation.

BSV Series Features- Anti-return Oil Device
Anti-return oil device:

After starting up vacuum pump, the oil can be flew into each internal parts of pump to lubricate, seal and cooling pump body throught overcoming the spring pressure;

After stopping, the anti-return oil device through the spring pressure can be sealed the oil tank and pump body completely.

The anti-return oil device can effectively protect the oil from being sucked into chamber by the differential pressure.

BSV Series Features -Cooling type

 

tags: Rotary vane vacuum pumpTwo stage rotary vane vacuum pump
Edited by Catherine Qin / EVP Vacuum Solution

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