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:

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

Main technical parameters:

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.

Product advantages:

◎ 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;

Product applications: