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Laminar Flow Pass Box

The laminar flow pass box is a kind of auxiliary equipment for cleanrooms, mainly used for the transfer of small
items between two clean areas or between clean area and non-clean area, to reduce the number of clean room door
opening times and minimize the pollution of clean room. UV lamps are installed in the pass box to disinfect the items
before passing them to the clean area. On the one hand, it plays the role of airlock to prevent the high pressure from
being leaked in the high-class cleanroom; and on the other hand, it realizes the self-cleaning effect during the trans -
fer process to ensure the cleanliness of the items entering the clean area and reduce the cross-contamination
brought by the items.

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Product Description

Description:

1. Differential pressure gauge

2. Centralized control panel

3. Double-layer tempered glass door

4. Stainless steel men iscus handle

5. DOP test port

6. Centrifugal fan

7. PAO injection port

8. Gel seal HEPA filter

9. UV sterilizer

10. Return air mesh plate

Basic performance requirements:

◎ Cleanliness requirements inside the laminar flow pass box: Class A;

◎ Adopts inner and outer housing design, with rounded treatment around the inside to ensure gap-free connection;

◎ Adopts laminar flow design, with the airflow direction of upward supply and downward return mode, and 304# stainless steel cold-rolled plate punching

design at the bottom, combined with reinforcing ribs;

◎ Filter: G4 for the primary-efficiency filter and H14 for the HEPA filter;

◎ Air speed: After passing the HEPA filter, the air speed is controlled at 0.36-0.54 m/s (tested at 150 mm below the flow equalizing plate at the high-ef - ficiency air outlet);

◎ Differential pressure function: Display filter differential pressure (ranging 0-500Pa for HEPA), with the accuracy of ±5Pa;

◎ Control function: Equipped with fan start/stop button and built-in electronic door interlock; set UV lamp, designed to switch separately;

◎ An access port is equipped in the lower part of the pass box for the mainte - nance of the fan;

◎ Noise: Noise <65db during normal operation of the pass box;

◎ Flow equalizing plate at high-efficiency air outlet: 304# stainless steel mesh plate is used.

Main technical parameters:

Model	Overall dimensions (mm)	Work area dimensions (mm)	Filter dimensions (mm)	Air speed (m/s)	Cleanliness class	Noise (dB)	Blowing time (min)	Power (KW)
ZKSJ-CLCDC 400 ZKSJ-CLCDC 500 ZKSJ-CLCDC 600 ZKSJ-CLCDC 800	600x470x1000 700x570x1100 800x670x1200 1000x870x1400	400x400x400 500x500x500 600x600x600 800x800x800	230x180x90 330x280x90 430x380x90 630x580x90	0.45±20%	Class A	65	0-999 manually adjustable	0.2 0.3 0.4 0.6

Note: The specifications listed in the table are for customers' reference only, and the laminar flow pass box can be designed and made according to customers' requirements.