Dynamic Pass Box

Dynamic Pass Box is designed to allow material transfer through controlled environment without much personnel movement to minimize man /material movement & avoid cross contamination between different classified areas. This is essentially installed to minimize movement of personnel for transfer of material into and from the clean room.

It aids to achieve desired classification, maintain integrity of products, process & controls ingress of particulate contaminants into clean room & between different classified areas. Our range of Dynamic Pass Box is available in various specifications as per the client’s requirements.

Dynamic Pass Box is with a variety of standard dimensions also our pass boxes can be custom engineered to any size. Dynamic pass boxes are available in powder coated Mild Steel, SS 304 / 316 / 316L or a combination of both.

Standard Model Available :
Model No. Work Area dimension in mm Airflow Velocity
(Down flow)
Air Cleanliness Air Flow
DPB-18-18-18 450 X 450 X 450 0.45±0.05mps/ ISO Class 5(ISO 14644-1:1999 (E)) / Vertical - Recirculatory
DPB-24-24-24 610 X 610 X 610 90(fpm) Class 100
(U.S. FED STD 209 E)
Technical Specification :
HEPA Filter : Imported Minipleat HEPA filter with hot melt technology, which conforms to EU-14 Grade at supply position with an efficiency rating better than 99.999% down to 0.3µ.
Pre-filter : Pre-filter are made from non-woven synthetic with HDPE mesh; conforms to EU 6 grade, with an efficiency rating better than 95% down to 5µ.
Alower Assembly :
Motor blower designed of statically and dynamically balanced for supply of sufficient capacity and static pressure to take care of airflow requirement for entire life of HEPA.
Differential Pressure Gauge : Dwyer make magnehelic Gauge (0 -25 mm: 1 No.) to monitor pressure drop across HEPA.
Door : SS 304 double walled door construction with flush glass view panels with SS handles and SS hinges.
Interlocking : Electro-Magnetic Interlocking type door arrangement to ensure that only one side door can be opened at any given time.
Door Indication : Indicators on either side for door open condition.
Door release : Door release switch on either side
SS coving : Internal covings for easy cleaning
ON/OFF Switches : SS ON/OFF switches for motor & lights
Switch Socket : 6/15 amp single-phase switch socket use for external equipment
DOP Port : DOP test port at upstream of HEPA filter to personnel for carrying out the HEPA filter integrity test (with PAO solution).
Electrical Supply : 230V AC 1- Ø 50HZ / 415V AC 3-Ø 50HZ
Noise Level : Less than 67 dB on scale 'n' when ambient is not greater then 55 db on scale 'A'
Vibration Level : Minimum
Optional Accessories :

U.V. Light with Hour Meter used for bacteria/virus killing & interlocking arrangement to put off UV Light if either side door opens.

Support stand for mounting of pass box

Flange for sealing the gap between the pass box and the clean room wall

Electro-Magnetic / Mechanical Interlocking

Floor mounted construction with three side wall structure & Door drop seal

Audio visual alarm indicating condition of HEPA filters

Clean down timer with operation hold indicator

VFD based control systems

Photohelicguage / Digital pressure gauge to monitor of pressure drop across filter.

Sodium vaporlamps

Flame proof fitting