Best Practices for Gasket Installation

Gaskets are designed to effectively seal two mating surfaces or parts. They must therefore be installed properly. When installed correctly, gaskets can quickly stop leaks on the associated components even at different compression levels.

Regular steps in installing gaskets include meticulous cleaning, inspection, flange alignment, lubrication, and many more. Here are some best practices you should be aware of and adhere to if you plan to install gaskets for your chosen components.

Proper Cleaning and Inspection

Examine and clean the flange surfaces. Clean the flange surfaces, fasteners (bolts or studs), nuts, and washers of any debris or foreign objects. To clean the flange surfaces, move a brass wire brush along the grooves. Make that there are no significant flaws in the flange surfaces, fasteners (bolts or studs), nuts, and washers. If any parts are discovered to be broken, replace them. If unsure, consult a knowledgeable professional for guidance.

Gasket Properties

Make sure the gaskets have the proper dimensions for your applications before you install them. Keep in mind that the inner diameter of your gaskets must not be less than the inner diameter of the flange. The bolt holes might need to be slightly trimmed if you wish to make the centralization of the gasket easier. Your gaskets must also be free from any flaws or faults in order for them to be put perfectly, much like your flange surfaces and other components.


Gaskets should be stored horizontally to avoid warping and stress. The ideal storage environment is in a spotless area with a humidity level of 50–60%, a temperature of 75°F, and no direct sunlight. Care should be taken when handling any gasket. Carry them in a cover for protection, shield the surfaces, and avoid bending the gaskets.

Flanges Alignment

Make careful to use the proper bolts while keeping in mind the intended media temperature. Additionally, check the bolts for corrosion as this can affect how well they operate. Bolts shouldn’t be reused. Use a nut with a specific proof load that is 20% greater than the maximum strength of the fastener. It’s crucial to utilize normal threads rather than fine threads and to lubricate properly. For the nuts and washers, use the same material.


The gaskets can now be attached to the flanges once the flanges have been set and have undergone a thorough inspection. Starting the installation process involves doing so by centering the gasket between the dry flanges. In most cases, unless the gasket manufacturer specifies otherwise, joint compounds and releasing agents are not advised for use during gasket installations. The use of joint compounds or release agents without a manufacturer’s prescription can quickly lead to chemical attacks on the gaskets, which can jeopardize both their essential characteristics and service life.

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