High pumping speed over a wide pressure range (1~1 x 104Pa).
There is no oil in the pump chamber to avoid oil vapor contaminating the vacuum system.
Little vibration, little noise.
The mechanical friction loss is small, so the driving power is small.
What ZJ had series roots vacuum pump is a kind of perfect structure of positive displacement pump, it take big advantage is the lower the inlet pressure has high extraction rate, and can reach the limits of relatively high vacuum, due to the pump directly ACTS on the extraction of the main parts such as pump shell, no exposure to relative motion between rotor and end cover, so the pump running stable performance and long service life, maintenance cost is small, At present, this pump is widely used in vacuum smelting, vacuum welding, vacuum casting, vacuum spraying, vacuum drying, vacuum power test, chemical and pharmaceutical, electric vacuum device manufacturing and other vacuum treatment in the vacuum range that this pump can achieve.
In a wide range of pressure (1-1 x 10-4) has a large pumping speed · no oil in the pump chamber, to avoid oil vapor pollution of the vacuum system.
Little vibration, little noise. · the mechanical friction loss is small, so the driving power is small.
Easy to maintain and repair, low cost, high life. · condensable gas can be removed.
Can not be used alone, must be equipped with front pump. It is not allowed to start under atmospheric pressure until the inlet pressure of roots pump is pumped to the allowable inlet pressure by the front stage pump. The front pump can be water ring pump, reciprocating pump, jet pump, rotary vane pump, claw pump, etc.
The roots pump is widely used in vacuum forming, vacuum smelting, vacuum gas extraction, vacuum coating industry vacuum distillation, chemical and pharmaceutical industries and other industries vacuum drying roots vacuum pump is not sensitive to a little dust.
ZJV is very suitable for water ring vacuum pump and other pre - pump vacuum unit composition.
Vacuum degree covers a wide range, can be in a wide range of pressure (1x10-2 ~ 1x10 2 mbar) has a large pumping speed.
Frequency conversion startup reduces start-up shock, small vibration, stable motion and low noise.
Small mechanical friction loss, small motor power.
Stable operation performance, long service life, low maintenance cost.
ZJV series vertical roots pump widely used in vacuum coating, vacuum drying, vacuum smelting, vacuum welding, vacuum coating, metallurgical industry, aviation simulation, chemical, food, pharmaceutical, oil refining system dehydration system, chemical evaporation, distillation, concentration, low temperature cooling system, etc., is a kind of wide application of roots pump.
Can be directly into the atmosphere, no waste water emissions;
It can be connected with the front pump in series to form roots unit, which can save energy remarkably. Compared with the ordinary roots pump, ZJQ air-cooled roots vacuum pump can work at high pressure difference, and the front stage pump can be appropriately reduced to achieve the energy-saving effect.
Wide range of application. Because the exhaust side can bear high pressure, it effectively solves the overload and overheating phenomenon caused by excessive pressure difference and poor vacuum degree of the common roots vacuum pump;
Able to work under higher inlet pressure. ZJQ series air-cooled roots vacuum pump can theoretically work under atmospheric pressure at the inlet.
Motor power is uncertain. ZJQ series air-cooled roots vacuum pumps need to calculate the maximum pressure difference in actual operation according to the process conditions to determine the required motor power.
It is widely used in vacuum smelting, vacuum drying, vacuum impregnation, vacuum distillation, vacuum degassing, aviation simulation test, gas transportation, vacuum suction and power station suction and other vacuum operations.
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