Controlled Atmosphere (CA) Doors
Innovation built on strong roots
Specially designed and manufactured for small, narrow CA refrigeration cells from which small batches need to be taken out regularly.
CA doors are especially designed for gas-tight rooms in facilities where storage of perishable goods is required, such as berries, bananas and potatoes, among other fruits & vegetables. A CA door makes the room completely gas tight by utilizing an inflatable gasket operated by an air pump. As it is light weight, the door can be opened and closed seamlessly, thereby making our doors the ideal solution for gas-tight storage chiller and freezer rooms.
In-house Capabilities
PSI can comprehensively analyze your designs or create designs for you based on your process requirements. We are high pressure equipment manufacturer that employs advanced methods of design, including stress and fatigue analysis reports and finite element analysis if required.
PSI Sliding Doors are designed specifically for use in cold and chilled storage applications and can be installed both internally and externally.








| Construction | Fire-resistant Polyisocyanurate (PIR) insulation material with foam density of 40kg/m3. Both sides covered with 0.5mm PPGI steel flat sheet with polyester coating. |
| Thickness door leaf | 100mm. |
| R-value | Approx. 4.67(m2.K/W). |
| Framing | Anodised Aluminium Profiles, thermal bridge-free. |
| Colour of door leaf | Standard colours RAL 9002. |
| Sealing | 100% gas-tight by means of inflatable profiles. |
| Door frame | Anodised Aluminium Profiles with a complete thermal bridge-free fit to the wall. |
| Hinges | Block hinges and a SALCO patented ‘lift and drop' hinge that raises the door a few millimetres, prevents normal wear and tear of the rubber bottom sealing while opening and closing. |
| Handles / bars | Three rotation bars included. Internal handle excluded. |