You could also use the Startup Manager to select your boot drive when you start macOS. By following specific guidelines for installation, you can be sure your o-ring will work to its fullest potential.Your Mac will reboot from the USB instead of your default startup disk. This will prevent any future complications or failures in your o-ring.įrom the design process to installation, o-rings should consistently be checked and verified that they are the right size, shape and material for the application. Take into consideration the temperature and pressure limitations, as well as the friction and durometer when choosing the material for your o-ring. Material selection is also a critical point in the design process. The maximum seal volume should not exceed 90% of the minimum gland void. Also, a good seal design will provide more gland void than seal volume. The stretch should be between 1%-5%, with 2% being ideal in most applications. The o-ring should be slightly stretched, fitting snugly in the groove. ![]() ![]() To provide customers with an effective seal, the o-ring’s inside diameter must be smaller than the piston groove diameter. One of the best ways to ensure your machinery and seal will last with minimal repairs is by following good design principles. Testing for specific measurements is crucial, as it allows for both Apple Rubber and the customer to be confident that their seal will work to its fullest potential. Since this testing machine is automated, there’s low risk for mistakes in measurement. Apple Rubber utilizes CAM for dimensional testing, which automatically measures the product for specific dimensions. Manufacturers should administer qualification testing for o-ring seals to ensure they are sized correctly and meet the customer’s standards. The wrong sized o-ring can lead to serious damages for both the seal and the entire system as a whole. Double check your sizing.īefore installing an o-ring, it’s important to verify the sizing to confirm you have the right seal for the application. This will affirm that there are no complications during the sealing application and the o-ring can function to its fullest potential. You must ensure the lubricant is compatible with the o-ring material to avoid shrinkage or swelling.Īfter testing compatibility with the sealing material, you must also ensure the lubricant can handle the temperature ranges of the application, is compatible with the system fluids and will not clog the system filters. Choosing the proper lubricant requires careful consideration of the seal, lubricating formula and system as a whole. Lubrication can help with reducing surface friction and creates a smooth transition for installation. Apple Rubber recommends the following methods for ensuring your o-ring will be installed correctly. Ensuring that the seal is well lubricated, matches the correct size and is designed with the application in mind are important factors to check for during the installation process. ![]() There are important guidelines you should follow to properly install an o-ring seal. ![]() In order to meet strict industry standards, o-ring production requires careful design, material selection and installation procedures. Without proper o-ring installation, the seal can fail, causing leaks and potentially catastrophic system failures. O-Ring seals are a driving force behind many fluid power applications.
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