Stopper Sizes
Rubber stoppers are everywhere around us. Whether we’re using them to plug a screw hole or close a bottle of wine -they’re there. But, aside from household and everyday use, rubber stoppers can be used in industrial environments as well. Seeing how these products are very versatile and universally applicable, it is only natural for us to talk to you about stopper sizes.
Quite obviously, not every stopper is going to be suitable for every use-case scenario, which is exactly why we have a plethora of stopper sizes. The smallest stoppers are measured in millimetres, however, they are not as small as you might expect. Generally speaking, the smallest stopper is about 19 mm tall, with an average diameter of around 10-11 cm. Now, there are a few measurements that are important when we talk about stopper sizes. First of all, there’s the diameter. Some stoppers have the same diameter from top to bottom, but some of them sport a half-cone shape, which means they have both the narrow and the wide end. In that case, you’d have two diameters – the bottom (narrow) and the top one. And, in addition to those two, we have height. Some stoppers are longer than the other, and once again, it all depends on the application they’re intended for. For example, stoppers for vials are often half-cone shaped and short, while the wine bottle stoppers are cylindrical and tall.
One thing we didn’t mention is that stopper sizes are often represented by a number. The numbers representing the sizes for stoppers are usually standardized, but it is still advised that you check the actual proportions of the stopper becuase it could easily happen that a stopper number 2 from one manufacturer is not the same size as the stopper number two from the other one.
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.
Custom colors are available to your Pantone color code. Include the code in your inquiry.
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
- Application focus
- Bottle necks, wine bottles and vials. Size the part against the selected assembly.
- Dimensions to confirm
- Opening diameter, closure profile, insertion depth and exposed grip. Match these to bottle necks and wine bottles.
- Size selection
- Choose the drawing or chart row by its functional dimensions and units; verify mating-part tolerances before ordering.
- Profiles discussed
- Tapered sections and cylindrical sections. Select the profile that matches the mating part and dimension that section explicitly.
- Contact conditions
- Wine: 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.
Email us[email protected]