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    SAINT-GOBAIN
    Logo Saint-Gobain AUTOMOTIVE POLYMER SOLUTIONS
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    METAL SEALS

    Metal seals are the most resilient seals compared to other materials, because they withstand extreme parameters. 

    Extremes of temperature:   
    Cryogenic down to liquid He (-270°C)
    High temperatures up to 900°C

    Extremes of pressure:        
    Ultra-high vacuum 10-12 mbar
    High pressure up to 75.000 psi

    Extremes of tightness:         
    up 10-12 mbar l/s

    Harsh chemical conditions

    High radiation

    Unlimited shelf life

     


    To comply with one or all of these extreme requirements (tightness, pressure, temperatures) the seal needs to be carefully selected. Our engineers design and develop your individual metal seals in close cooperation - testing of the material itseld and the behaviour under realistic conditions is one of keys to final production.  But also seal handling, groove quality, surface finish and cleanliness, assembly and closing procedure must follow strict rules.

    Typically, metal seals are used in 4 different areas on the engine of heavy-duty vehicles (Commercial Vehicles):

    Exhaust manifold, bellows replacement, EGR Valve and Turbochargers.

     

     

    Exhaust Manifold Slip Joint:

    Most common application in the commercial vehicles is exhaust manifold of internal combustion engine (ICE). The problems in this area are “Hot Exhaust Gas Temperatures” (>650°C) and “Thermal Movement”. Saint-Gobain APS’s solution to eliminate both problems with one part is “External Dynamic Resilient Metal Lip Seal”. It is simple to install and gives an opportunity to be maintenance free through the life cycle of exhaust manifold.

    Bellows Replacement:

    Bellow replacement is a costly process because of welding operation. Moreover, there is a “Thermal Movement” in this area. Saint-Gobain APS has a patented product “Two External Dynamic Resilient Metal Lip Seals and One Machined Tube. Customers can supply the machined tube separately or together with seals.

    Turbo / Exhaust Manifold Interfaces:

    Turbo chargers are the 3rd main area in which metal seals might be effectively used. “Non-Uniform Joint Separation” is a big problem in sealing. Saint-Gobain APS has a solution of “Internal Pressure Style Metal Turbo Seal with or without a Retainer Plate.”

    Butterfly / Wastegate Valves:

    The problem in this area is the “Demanding location due to Extreme Temperature and Movements.” Saint-Gobain APS “Axial V-Seal” solution works smoothly to overcome this challenge.

     

    Please download the datasheet or contact us directly.

     

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    About Saint-Gobain

    Saint-Gobain designs, manufactures and distributes materials and solutions for the construction, mobility, healthcare and other industrial application markets; they can be found everywhere in our living places and daily life, providing wellbeing, performance and safety. 

    Saint-Gobain Seals' polymer and metal seals solutions and components are used globally in critical systems that "move" us every day and into the future: automotive, commercial vehicles, life science, industrial and any other markets, where the safety of the human being is in the focus of the application.

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