Class 100 Weighing Booth Stainless Steel Negative Pressure Weighing Booth
Product Description
Product Features
1. The low negative pressure airflow flows evenly in the operation area through the downward sinking type, creating a clean and sterile local environment to avoid cross contamination between different parts
2. Effectively control the overflow and rise of dust and reagents to prevent the harm of dust and reagents to the human body by inhalation, and also avoid cross contamination of dust and reagents, protecting the external environment and the safety of indoor personnel
3. The primary, medium and high efficiency filters are three-stage filtration, and the liquid tank high efficiency filter meets the test requirements of DOP or PAO
4. The polymer flow membrane significantly improves the uniformity of the air outlet
Working principle
This equipment adopts the form of vertical unidirectional airflow. The return air must first be pre-filtered through the primary filter to remove the large dust particles in the airflow. The pre-treated air is then filtered through the medium filter for secondary filtration to fully protect the high-efficiency filter. Under the pressure provided by the centrifugal fan, it passes through the high-efficiency filter to meet the cleanliness requirements. The clean airflow is sent to the air supply box, 90% of which passes through the uniform air supply mesh plate to form a uniform vertical air supply airflow, and 10% passes through the air volume adjustment plate and is discharged from the equipment. All airflows are processed by high-efficiency filters, so there is no residual dust in the air supply and exhaust, avoiding secondary pollution. Since a stable unidirectional flow is formed in the working area, the dust emitted in this area will be captured by the primary and medium-efficiency filters under the influence of the unidirectional airflow. The equipment has 10% exhaust air, thereby forming a negative pressure relative to the external environment, which to a certain extent ensures that the dust in this area will not spread to the outdoors, playing a role in protecting the external environment.
Product Parameters
Model |
ZJSJ-2000 |
Cleanliness |
Class 100 / ISO 5 |
Average downflow wind speed |
0.45±20% |
Noise |
≤65dB(A) |
Internal dimension |
W1900*D900*H2100 MM |
External dimension |
W2000*D1350*2400 MM |
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