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ValuLine™ Pass-Through Chambers
Performance without Compromise!

Shown: 12" x 12" x 12" polypropylene
model 2634-01A
Shown: 24" x 24" x 24" black acrylic
model 2634-17A
Wafer_CE canada and us Ul logo cleanliness high

Stainless-steel pass-through
(No. 2634-42A) showing door interlock included on all models

Available with self-closing UL-B fire-rated door on clean side (shown: No. 2634-72).
Testing Standards:
(Door only)
  canada and us Ul logo
  • Economical chambers enhance operational cleanliness by eliminating the need for garbed personnel to transfer parts into and out of the lab or cleanroom
  • Seven wall-mount sizes accommodate materials up to 22" x 22" x 24"
  • Transparent windows allow full visibility of chamber interior
  • Fire-rated stainless steel door (UL-B for 90-minute exposure) available
Terra's ValuLine Pass-Throughs provide durable, non-contaminating transfer chambers at low cost.

Choose from three materials: chemical-resistant polypropylene includes static-dissipative PVC (SDPVC) viewing windows for compatibility with most cleaning agents, including alcohol; black acrylic includes clear acrylic windows; durable 304 stainless steel resists damage from chemicals and has doors made of static-disspative PVC with viewing window, or solid fire-rated stainless steel. All plastic models feature a stainless steel protective shield on the chamber floor to resist scratches and prolong chamber service life.

Dual expansion latches provide firm door closure. Unlike rotary latches, which often generate particles inside the chamber as the latch scrapes the internal chamber surface, these latches are physically isolated from the transfer area for optimal cleanliness.

The FirmLok™ Interlock mounted inside each chamber eliminates the chance of cross-contamination by ensuring that only one pass-through door at a time can open. This no-maintenance, reliable mechanism, rated for millions of operations, automatically engages the moment a door opens. It is made of all-stainless steel components and is located within the internal chamber wall between the opposing door latches.

System Options

The fire-rated door is UL-B rated for 90-minute fire exposure, suitable for two-hour wall rating (maximum temperature rise to 250°F in 30 minutes); access door on non-rated side has an SDPVC viewing window. Self-closing, self-latching steel doors are 2.56"-thick, non-insulated, with a pull handle and concealed hinge. Doors are 16-gauge and feature flush mounting frames with reinforced edges.

More pass-through accessories

ValuLine Pass-Through Chambers require a wall cut-out 0.5" [13 mm] larger than the chamber width and height. All units come with mounting brackets and hardware that frame the chamber and ensure secure mounting.

See our Specimen Pass-Through Cabinet for labs & clinics.

  FEATURES & BENEFITS | ValuLine Cleanroom Pass-Through Chambers

Stainless Steel Shield
Stainless steel shield prevents scratching of chamber floor and damage to plastic surfaces.

Transparent Window
Clear cleanroom-compatible windows allow full visibility of chamber interior and opposing room.

Dual Expansion Latches
Dual expansion latches are physically isolated from the transfer area for optimal cleanliness.

Steel Door Guard
Stainless steel stiffener reinforces to door's edge to improve door seal and minimize damage.

Flush-Mounted Chamber
Pass-through chamber mounts flush against the clean-side wall to minimize particle accumulation.

Pass-Through Ordering Information

Need Terra to do your installation? Call to discuss your facility and schedule.

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ValuLine Pass Through Chambers: All models include mechanical interlock
W" x D" x H" (mm)
(SD PVC Doors)****

(Clear Acrylic

(SD PVC Doors)

Fire-Rated 304
Stainless Steel (¹) 
(clean side
steel door meets
UL 10B rating)
Cat. # Price Cat. # Price Cat. # Price Cat. # Price
12 x 12 x 12
(305 x 305 x 305)
2634-01A $ 1,203 2634-11A $ 997 2634-42A $ 1,575 2634-72A $ 2,663
12 x 12 x 24
(305 x 305 x 610)
2634-02A $ 1,369 2634-12A $ 1,176 2634-43A $ 1,605 --- ---
18 x 18 x 16
(457 x 457 x 406)
2634-03A $ 1,671 2634-13A $ 1,336 2634-44A $ 1,795 --- ---
18 x 18 x 18
(457 x 457 x 457)
2634-04A $ 1,752 2634-14A $ 1,427 2634-45A $ 1,795 2634-73A Call TUI
18 x 18 x 24
(457 x 457 x 610)
2634-05A $ 1,674 2634-15A $ 1,427 2634-46A $ 1,833 --- ---
24 x 24 x 16
(610 x 610 x 406)
2634-06A $ 1,902 2634-16A $ 1,608 2634-47A $ 2,088 --- ---
24 x 24 x 24
(610 x 610 x 610)
2634-07A $ 1,997 2634-17A $ 1,622 2634-48A $ 2,172 2634-74A $ 4,085

*Add 0.5" (13 mm) to WxH for cutout
**FM 4910 flame-retardant polypropylene available; call for quotation
***Acrylic is damaged by alcohol and other solvents
****Internal Access = W" minus 2"; x H" minus 1"
(¹)  -RH/-LH door re-order process described above does not apply to Fire-Rated pass-throughs. Get help from a Product Specialist


Access Clearances
Width = W (nominal) – 1.88"
Depth = D (nominal)* – 0.12"
Height = H (nominal) – 1.25"

* Subtract 0.5" for plastic chambers. Each door adds 0.5" to nominal depth.

Wall Cut-Out = W (nominal) +0.5" x H (nominal) + 0.5"


Standard Door Configuration

Need Terra to do your installation?
Call to discuss your facility and schedule.

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