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Pass Box

Yorco Pass Box Introduction


A Pass Box is an essential requirement for Clean Rooms, OT’s and other Sterile Areas. These have Doors on Both sides. These are used to transfer materials between two clean rooms of different cleanliness classes or from a non-sterile area to a sterile area or vice versa.


These form an air lock and when one side door is opened to keep or remove material, the other side door automatically locks so there is no through pass of air from one area to another. It is also used in BSL labs to prevent Hazardous organisms escaping out during material transfer.


Pass Boxes are two types (i) Static or Passive Pass Boxes (ii) Dynamic Pass Boxes


Static Pass Boxes are air locks with UV sterilization inside.


Dynamics Pass Boxes on the other hand provide HEPA Filtered Vertical Air Flow air inside and protect the material being transfer from any contamination. When one door is opened the HEPA filtered air under positive pressure inside is partly allowed to escape out, giving an air curtain effect outer door opening and preventing outside contaminated air to enter the Pass Box and eventually escape into the other room when the other side door is opened.


Yorco Pass Box Model YSI-207 Static Pass Box


This is available in standard internal size of 24” (W) X 24”(H) X 24”(D). Other sizes are available on request.


Standard construction is of CRCA sheets and manufactured on CNC machines for high accuracy. These are epoxy powder coated after 7 tank phosphating process which makes it completely rust and scratch proof Optionally there are also available in Stainless Steel 304/316 Grade construction. Both side Doors are Electromagnetically (not mechanically) inter locked. This provides noiseless and positive maintenance free inter locking. The construction is such that the gaps normally visible on sides and top after installation, are not visible on both sides in Yorco Pass Boxes.

Requirement to work : 220V, 1 ph, 50 Hz AC supply.

Size: 24"(W) × 24"(H) × 24"(D). Other sizes on request.