seals and gaskets are vital to the efficient and safe operation of aircraft by preventing leakage, protecting sensitive systems, and maintaining stable pressures. We will provide an overview of the importance of aircraft gaskets and seals, the materials they are made of, their common applications, and RD Rubber’s custom rubber molding capabilities.
Importance of Seals and Gaskets in Aircraft
Aircraft seals and gaskets offer the following key benefits:
- Leak prevention. Gaskets and seals help protect systems from possible leakage of hydraulic fluids, fuel, oil, and other fluids that might otherwise put equipment and passengers at risk.
- Consistent pressure. Pressurized cabins rely on aircraft seals and gaskets to maintain safe and comfortable pressure levels.
- Component protection. Another function of aerospace seals and gaskets is to protect other essential aircraft parts from sources of wear or contaminants, such as dust, dirt, and moisture.
- Ensure functionality. Proper seals and gaskets also maintain the integrity of various aircraft systems, including fuel, hydraulic, and engine systems.
Materials Used: Viton, EPDM, Silicone
Aircraft gaskets and seals may use different materials, depending on the application. The three most common material types are the following:
- Viton®. Many aircraft seals and gaskets consist of Viton rubber, which is a type of fluorocarbon elastomer manufactured by Chemours that offers superior temperature, oil, and fuel resistance. Viton rubber gaskets work well in aircraft fuel systems and engines.
- Fluoroelastomer (FKM). Many aircraft seals and gaskets consist of FKM rubber, which offers superior temperature, oil, and fuel resistance. FKM rubber gaskets work well in aircraft fuel systems and engines.
- EPDM. Ethylene propylene diene monomer (EPDM) rubber is a type of elastomer that provides reliable resistance to weathering, chemicals, and ozone, making it ideal for use in air conditioning and fuel systems.
- Silicone. Another option is silicone rubber, a highly versatile elastomer that provides low compression set and excellent resistance to chemicals and high temperatures. Cockpit seals and electrical connectors frequently comprise silicone rubber gaskets.
Applications of Seals and Gaskets in Aerospace
Here are some of the potential applications for aircraft seals and gaskets.
Engines
Engines often use seals and gaskets for pistons and valves. In pistons, seals prevent leaks between the cylinder walls and the piston. In valves, gaskets close the gap between the valve and the valve seat.
Fuel Systems
Fuel systems also benefit from using aerospace seals and gaskets. For example, seals can keep fuel lines and hoses from leaking fuel. They protect against fuel contamination and evaporation in fuel tanks. Fuel pumps also have gaskets to prevent leaks and seal housings.
Hydraulic Systems
In a hydraulic system, rubber gaskets seal the space between cylinder walls and the piston, as well as the space in valve ports. Hydraulic lines also rely on seals to prevent leakage of hydraulic fluid.
Avionics
Avionics need strong seals for various components. Rubber seals prevent the incursion of dust, moisture, and other contaminants into avionics systems, which could interfere with the proper operation of essential electronics systems.
High Quality Aircraft Seals and Gaskets from RD Rubber Technology
If you’re seeking dependable aircraft seals and gaskets, RD Rubber Technology offers custom-designed solutions for your specific aerospace project. We supply a wide range of custom rubber products, including aerospace seals, gaskets, grommets, latches, valves, and other critical to function products. RD Rubber Corporation maintains ISO 9001:2015 and AS9100:2016 quality system certifications. Additionally, we maintain DOD and ITAR registrations, and are NIST 800-171 compliant. RD Rubber is dedicated to meeting your requirements through our comprehensive product development and production capabilities.
Contact us today to learn more about our products and services, or request a quote for a custom solution.