A sweep gasket is used to seal cold room and freezer room doors, where the gasket sweeps over the floor or threshold during the opening and closing of the door. Due to its flexible design, the gasket conforms well to uneven surfaces and prevents cold air from escaping under the door. Cold air naturally sinks, while warm air rises. Where cold air comes into contact with warmer outside air, moisture condenses, which in a freezer room can freeze into ice clumps at the bottom of the door. A well-fitting sweep gasket limits this, which also prevents temperature loss and unnecessary energy consumption.
Sweep gaskets are available in various designs and shapes, including I-, L-, P-, and T-profiles. The correct design depends on the door construction, the mounting method, and the dimensions of the existing profile.
Need help finding the right profile?
Not sure which profile you need? Search by brand and model of your cooling unit or compare the profile code with your existing door gasket. Once you have found the correct profile, you can use the configurator to specify both the color and dimensions to instantly calculate the price.
How does a sweep gasket work?
A sweep gasket is mounted at the bottom of a cold room or freezer room door and provides a seal between the door and the floor or doorway. The difference from other door gaskets is that a sweep gasket is designed to make controlled contact with the surface below. This ensures the door remains sealed, while the gasket can move along during opening and closing.
When replacing, always check the old profile code or the exact dimensions, so that the new profile has the same fit and seal. If necessary, use the page dimensions of door gaskets.
Where is a sweep profile used?
Sweep profiles are primarily used in cold and freezer rooms, because the door here has no edge or threshold against which a standard door gasket can seal. Without a sweep gasket, cold air would sink down under the door. There are two ways to apply this: a profile with a deviating shape on one of the four sides, featuring a flap that serves as a sweep gasket, or a separate sweep gasket mounted on the door in combination with a regular door gasket on the other sides.
Find the right sweep profile
DSU has developed a universal sweep gasket that fits under almost any cold room door. For this, you mount the mounting strip 22-C with one or two H3-65 profiles inside. For a cold room, 1x H3-65 is advised; for a freezer room, 2x H3-65. Common designs include:
- I-profiles
- L-profiles
- P-profiles
- T-profiles
The letter indicates the shape of the profile. Determine which shape is needed based on the existing mounting and door construction, or compare the existing profile with our drawings.
How to compare for the right profile
The mounting strip is attached to the door and is usually made of aluminum. This generally does not need to be replaced and determines which type of sweep gasket you need. When comparing profiles, therefore, pay particular attention to the width and height of the profile, so that it matches the existing mounting strip.
Frequently asked questions about sweep profiles
You can recognize a sweep profile by the fact that the gasket is intended to make contact with the floor or threshold when the door closes. The profile is located at the bottom of a cold room or freezer room door and has a longer flexible lip that sweeps over the floor.
The letter indicates the shape of the profile. Determine which shape is needed based on the existing mounting and door construction, or compare the existing profile with our drawings.
Then look for a suitable alternative profile with the same working height (the height between the floor and the bottom of the door that needs to be bridged). Optionally, look at our universal solution: mounting strip 22-C with 1x H3-65 for a cold room, or 2x H3-65 for a freezer room.
Are you in doubt? Feel free to contact us, and together we will find the right solution.
Sweep gasket profiles are used by many different manufacturers of cold and freezer room doors. The correct profile depends on the exact dimensions and mounting method, not just the brand. Therefore, preferably search by brand and model, or measure the existing profile and compare it with our drawings.
You measure the width of the sweep gasket and order the required number of meters or the fixed length, depending on the product.
At DSU, we have over 900 brands; unfortunately, there is a multitude of type numbers, and new models are constantly entering the market. When type numbers are known, they are listed on the brand's page. If the type number is not known to us, that's not a problem. We produce everything to size. Determine the correct profile and size and use the configuration tool to place the order. Optionally, add the brand and type number to the reference so that we can further complete our information.
