When requesting the fabrication and installation of a swing cold storage door, it’s important to know some preliminary information. This way, you can ensure that it meets your needs and provides the desired insulation guarantees.
We have prepared a detailed data collection sheet to assist you in the process. Let’s look at all the information on the necessary preliminary data for requesting the appropriate pivoting refrigerated door:
Width and Height of the Opening
The first thing you need to know is the width and height of the opening, which will determine the size and type of swing door. Standard measurements range from 100 cm to 200 cm, but if you wish a custom door, it’s possible too at at Kavidoors.
The width and height of the opening are measured from the outer edge of the frame to the outer edge of the opening. The door must fit exactly within those dimensions. If you have less than 20 mm of clearance on either side, we recommend adjusting the measurements accordingly.
Temperature to Withstand
At Kavidoors, we offer a custom thermal study, assessing not only the warehouse itself or the type of doors you need but also the characteristics of the environment, such as ambient or exterior temperature, among other important factors.
Swing Service Doors:
These are found in installations with a positive temperature (above +10ºC).
Swing cold storage doors:
Rooms with Positive Temperature:
Conservation (from +5ºC) or refrigeration (+0°C).
Rooms with Negative Temperature:
Freezing (-20 °C).
Freezing tunnels (-40 °C).
Panel Thickness
The exterior temperature must be considered since having a well-conditioned interior of the refrigerated warehouse is useless if the exterior temperatures are overlooked. Sometimes, there is a significant thermal gap between the -20 °C inside and 38 °C ambient temperature. To ensure the installed pivoting door is effective, the panel thickness must match the temperature gradient.
The thickness of the frame-panel on both sides will be provided in mm.
Lateral view of the panel of a pivoting refrigerated door
In the following chart, you can determine the thickness you need. The yellow tabs indicate acceptable losses, and the blue tabs indicate optimal losses.
| Thickness of panel (mm) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 40 | 60 | 80 | 100 | 125 | 150 | 175 | 200 | 230 | ||
| U (W/m2 ºC) | 0,52 | 0,38 | 0,27 | 0,22 | 0,17 | 0,14 | 0,12 | 0,11 | 0,09 | |
| Temperature gradient between faces of the enclosure (ºC) | 25 | 13,00 | 9,50 | 6,75 | 5,50 | 4,25 | 3,50 | 3,00 | 2,75 | 2,25 |
| 30 | 15,60 | 11,40 | 8,10 | 6,60 | 5,10 | 4,20 | 3,60 | 3,30 | 2,70 | |
| 35 | 18,20 | 13,30 | 9,45 | 7,70 | 5,95 | 4,90 | 4,20 | 3,85 | 3,15 | |
| 40 | 20,80 | 15,20 | 10,80 | 8,80 | 6,80 | 5,60 | 4,80 | 4,40 | 3,60 | |
| 45 | 23,40 | 17,10 | 12,15 | 9,90 | 7,65 | 6,30 | 5,40 | 4,95 | 4,05 | |
| 50 | 26,00 | 19,00 | 13,50 | 11,00 | 8,50 | 7,00 | 6,00 | 5,50 | 4,50 | |
| 55 | 28,60 | 20,90 | 14,85 | 12,10 | 9,35 | 7,70 | 6,60 | 6,05 | 4,95 | |
| 60 | 31,20 | 22,80 | 16,20 | 13,20 | 10,20 | 8,40 | 7,20 | 6,60 | 5,40 | |
| 65 | 33,80 | 24,70 | 17,55 | 14,30 | 11,05 | 9,10 | 7,80 | 7,15 | 5,85 | |
| 70 | 36,40 | 26,60 | 18,90 | 15,40 | 11,90 | 9,80 | 8,40 | 7,70 | 6,30 | |
| 75 | 39,00 | 28,50 | 20,25 | 16,50 | 12,75 | 10,50 | 9,00 | 8,25 | 6,75 | |
| 80 | 41,60 | 30,40 | 21,60 | 17,60 | 13,60 | 11,20 | 9,60 | 8,80 | 7,20 | |
| 85 | 44,20 | 32,30 | 22,95 | 18,70 | 14,45 | 11,90 | 10,20 | 9,35 | 7,65 | |
| 90 | 46,80 | 34,20 | 24,30 | 19,80 | 15,30 | 12,60 | 10,80 | 9,90 | 8,10 | 95 | 49,40 | 36,10 | 25,65 | 20,90 | 16,15 | 13,30 | 11,40 | 10,45 | 8,55 |
Number of Leaves
Opening Action
Finish
Consider the environment; if it is corrosive, you need to choose the appropriate coating. Another important aspect is cleanliness. If it’s a slaughterhouse where blood cleaning with chemicals is frequent, the door finish must be resistant to such products. It is advisable to mention them to the door manufacturer.
Frame
Frame to Panel
Frame with counterframe installed on a refrigerated panel or concrete, adaptable to the panel or wall width (up to 100 mm wide), with supplemental pieces to cover the total width from 120 mm to 250 mm.
Frame Work
For swing service doors, the frame and counterframe can only be fixed directly onto concrete or a refrigerated panel.
For a swing cold storage door, the frame can be installed on a concrete wall, without a counterframe, frontally screwed or clamped.
Passage
The door frame is finished to pass the rail or track where the product is suspended.
Wheelbarrow passage
It’s the piece used to pass the heating element through the floor, installed for freezer doors, maintaining floor level and preventing floor depressions from trolley passage, which would cause temperature loss.
Overhead Passage/Step Passage
Installed when there is a height difference between the chamber interior and exterior.
Rolled Frame
Installed when the door is suspended in the air to maintain airtightness around its entire perimeter.
Accessories
Various accessories are available, such as locks (with and without key), panic bars, door closers (with or without hold-open), peepholes (30×30 mm), and lower protection (polyethylene, stainless steel, aluminum).
If you have any questions while filling it out, feel free to contact us here.
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