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PRODUCTS
NBD-101(A)Mechanical Vacuum Pump System
product introduction：
product model：NBD-101（A）
The vacuum part of the system is composed of a high-speed direct-connected (directly driven by the motor) double-stage rotary vane oil-sealed varactor vacuum pump and the peripheral vacuum components, which can be used as the main pump of the medium and low vacuum system, as well as the front pump of roots pump, diffusion pump, molecular pump and other medium and high vacuum and high vacuum systems.
And equipped with oil mist filter and anti – oil device.
product feature：
1. Internal installation of forced oil pump, full lubrication, reliable performance;
2. Prevent oil return mechanism from being reliable and not returning oil;
3. When operating in the gas town, the vacuum is still high;
4. Strong ability to extract water vapor;
Technical Specification：
|
model |
NBD-101 |
|
|
pumping speed |
50Hz |
3 |
|
ultimate pressure（Pa） |
5×10-1 |
|
|
power |
AC220V |
|
|
motor power（KW） |
0.55 |
|
|
Inlet connection(mm） |
Diameter 8.5 pagoda port |
|
|
Vacuum pump oil capacity（L) |
0.6 |
|
|
weight(KG) |
16.3 |
|
(1) determine the type of main pump with the required limit pressure.
In general, the ultimate pressure of the main pump is half to one order of magnitude lower than that of the vacuum chamber.
(2) select the main pump for the working pressure required for the process production.
The working point of the main pump should be selected correctly. Within the working pressure range, it should be able to exclude all the gas produced in the vacuum indoor process.
Therefore, the working pressure in the vacuum chamber must be within the pressure range of the ~ optimal pumping speed of the main pump.
(3) choose the main pump according to the volume of the vacuum chamber and the required pumping time.
The volume of the vacuum chamber has an effect on the time of the system to draw the ultimate vacuum.
When the pumping time is certain, the larger the volume of the vacuum chamber, the higher the pumping speed of the main pump.
(4) the correct combination of vacuum pump, because the vacuum pump selectively pumping, and sometimes choose a pump can not meet the pumping requirements, need several pumps combined, complementary to meet the pumping requirements.
(5) if the vacuum system is strictly oil-free, it should choose a variety of oil-free pump as the main pump.
If the requirements are not strict, the oil pump can be selected, and then add some anti-oil pollution measures, such as cold trap, baffle, oil trap, etc., can also meet the clean vacuum requirements.
(6) when selecting vacuum pump, the components of the pumped gas should be known and the corresponding pumps should be selected for the components of the pumped gas.
If the gas contains corrosive gas, particle dust, etc., it should be considered to choose dry vacuum pumps, corrosion resistant vacuum pumps.
Or install auxiliary equipment on the inlet pipe of the pump.
(7) select the main pump according to the economic indicators such as the initial investment of the whole vacuum system and the daily maintenance cost.
