rubber test cap
If you operate in the construction or automotive industry, you might have to test hydrostatic pressure, and if so, you might want to purchase and install our rubber test cap that can test and sustain from 15 to 40 PSI head pressure. The rubber test cap is manufactured from high-quality materials, and although it is extremely durable and strong, it is also quite flexible, which is what allows it to be easily installed on different surfaces. There is a wide range of test caps that you can opt for from our online store, and there are even options that feature a stainless steel clamp that allows our customers to easily and quickly install and adjust it.
Our rubber test cap can resist various external factors including corrosion, air, liquids, chemicals, some acids, and more importantly, it can resist and test pressure. It is available in a wide array of sizes, hence, no matter what application process you need it for, you will most likely find exactly what you are looking for in our selection. The rubber test cap also has a reliable design that can be welded into place by a solvent, which basically means that you will not have to worry about it falling inside of the pipe and clogging it.
Once it is installed properly and securely, it can test approximately 40 feet of water or 17 PSIG and since they are available in all sizes and shapes, you will most likely find a suitable option for your project. It is worth mentioning that we also offer customization services, which means that we might be capable of producing a rubber test cap that is not in our featured selection. To order a customized component, you can send a request through our website, and from there, we will give you an estimate.
Rubber Cap Size Catalog
Compare the internal and external dimensions of rubber caps against the part being covered.
Rubber Caps-RSE
Compare A (inner diameter), B (outer diameter), C (inner depth) and D (total height), in mm.

Need a different size? Share your drawing, mating dimensions and intended use to discuss a suitable part.
Discuss Your RequirementsProduct specifications
- Product form
- Protective cover fitted over a component end
- Application focus
- Pipe or conduit ends. Size the part against the selected assembly.
- Dimensions to confirm
- Mating outside dimensions, cover depth, cavity and wall thickness.
- Test arrangement
- Define the test medium, pressure differential, duration and positive retention before choosing the closure.
- Cover retention
- Check the installed overlap and pull-off force on the actual end profile.
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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