Silicone airlock stopper
Silicone airlock stopper is something without which the functioning of airlock would be significantly impaired. And what exactly is airlock? Airlock can be grand in scale and very small, and for hanging from the role. Generally it is a compartment with doors that is sealed and thus affects the pressure. In this way we get the opportunity to move between two places with different pressures, without unpleasant consequences for our body. It is used in space stations, submarines and many other similar places. But there are also small devices called airlock, which work on the same principle and serve not to mix two gases, two pressures and the like.
It is for these small devices that a silicone airlock stopper is needed. If you are wondering what the purpose of a silicone airlock stopper is outside of space stations and submarines, it is great for home brewing. There are other purposes, but home brewing is certainly the main one and that is why the airlock stopper is made of silicone. Silicone and FKM have the best chemical stability of all rubber-like materials, and silicone can be food grade, which means it is safe to contact with beverages and food. Also, silicone is odorless and tasteless, so it will not spoil the taste of your homemade beer. Silicon airlock is very easy for cleaning, which is also very important, since it is reusable, but must be thoroughly cleaned after each use.
That’s why we make silicone airlock stopper, which can be any size you need. The containers used for brewing can be of different sizes and volumes, from 1 gallon to very large. As you know, the brewing process requires specific conditions, so if the airlock stopper is too big or too small, you will not be able to do what you want.
Stopper & Plug Size Catalog
Compare four stopper profiles and check the selected part dimensions against your opening and available depth. Each profile has its own drawing and dimension meanings.
RST T-Shaped Plugs
Match stem diameter A, flange diameter B, stem length C and flange thickness D. E refers to the underside recess; use the selected row and approved drawing to confirm the actual profile.
RSA Tapered Corks
Compare large-end diameter A, small-end diameter B and Height, in mm. The mating bore and required seating depth determine where the taper contacts the opening.
RSB Undercut Plugs
Compare neck diameter A, flange diameter B, flange-to-lip distance C and flange thickness D. Check panel thickness and rear clearance. E refers to the underside recess.
RSD T-Shaped Stoppers
Compare stem diameter A, flange diameter B, stem length C and head thickness D, in mm. Check the seating surface and available depth as well as the hole diameter.
Need a different fit? Share the opening dimensions, mating profile and intended use for a custom size.
Discuss Your RequirementsProduct specifications
- Product form
- Removable closure fitted inside an opening
- Material
- Silicone. Specify the compound grade for the selected service.
- Application focus
- Brewing equipment. Size the part against the selected assembly.
- Dimensions to confirm
- Opening diameter, closure profile, insertion depth and exposed grip. Match these to brewing equipment.
- Airlock passage
- Match the bore and insertion depth to the airlock stem and check its seal in the vessel neck.
- Contact conditions
- Other gases, food ingredients and beer: define concentration, temperature and contact time, then check compatibility with the chosen compound.
- Seating check
- Check the sealing contact around the opening and the force needed for insertion and removal.
Need a quote or a custom part?
Send your requirements, drawings or samples to discuss standard and custom silicone rubber parts.
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