Views: 0 Author: Site Editor Publish Time: 2026-04-03 Origin: Site
The negative pressure weighing booth is composed of several major components such as working area, return air box, fan box, outlet air box, outer cabinet, supply HEPA filter, exhaust HEPA filter, variable air volume fan unit, PLC control system and sensing system. The control panel is located in the front of the working area inside the equipment. It adopts touch screen control panel to control the fan start and stop, adjust the fan working condition, and adjust the air speed required in the working area. There is a differential pressure gauge beside it to test the resistance of the filter, and there is also an exhaust air adjustment plate inside the supply air box, which can adjust the exhaust air volume of the equipment within a reasonable range.

Description:
1. Buzzer
2. Air speed sensor
3. PAO injection port
4. DOP test port
5. Medium-efficiency differential pressure gauge
6. Primary-efficiency differential pressure gauge
7. High-efficiency differential pressure gauge
8. Centralized control panel
9. Dust-proof socket
10. Return air mesh plate
11. Exhaust mesh
12. Start/stop button
13. E-stop
14. Negative pressure area
15. Air duct
16. Fan box
17. Fan
18. Bag filter
19. Primary-efficiency filter
20. Gel seal HEPA 1
21. Positive pressure area
22. Lighting fixture
23. Homogeneous flow film
24. Gel seal HEPA

Note: The specifications listed in the table are for customers' reference only, and the negative pressure weighing booth can be designed and made according to the URS file of customers.
◎ Long life, low noise, maintenance-free and low vibration of fan;
◎ Double-layer negative pressure structure, without leakage risk;
◎ Excellent uniform air distribution performance;
◎ Automatic constant or step adjustment of air speed;
◎ Gel seal design to ensure perfect sealing;
◎ Consistent inside and outside, neat and clean without dead ends.
