For critical aircraft systems and components that require utmost sealing protection.
Bonded Gasket Technology
Parker's bonded Integral Seal™ design technology not only helps design engineers overcome sealing challenges commonly encountered with singular elastomer seals used in component assemblies, it provides significant improvements for automated assembly.
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A: Bonded sealing technology involves integrating an elastomer seal with a rigid carrier or plate, creating a seal that is bonded to the component, providing excellent sealing performance, especially for static applications.
A: eVTOL vehicles need specific sealing solutions due to their electric motors, thermal management needs, and the potential for variable weather conditions. These seals need to be robust, leakage-proof, able to withstand harsh media and temperature, and endure performance and maintenance conditions.
A: Common static face sealing options include flat gaskets, caulks, cements, RTVs, and O-rings. However, for persistent issues like leakage or challenging installations, Parker's bonded sealing technology provides an effective solution.
A: These terms are Parker branded trade names for custom engineered bonded plate seals featuring an elastomer seal that is bonded and vulcanized to a rigid carrier. Their rigid design makes them ideal for high volume applications and multiple sealing locations. Ultimate Guide to Bonded Sealing Plates | High-Quality Custom Solutions .
A: The Mark I is the more common of the two standard types. It's typically the the first choice for general sealing applications that do not see extreme pressure. One advantage to this seal cross-section style is the bi-directional sealing capability, meaning that both internal or external pressures can be managed using a symmetrical profile. The Mark VII Gask-O-Seal profile provides uni-directional sealing only. It is mainly used for high pressure applications, typically above 500 PSI, and in some scenarios, this cross section is capable of withstanding 20,000 PSI..
A: The benefits include controlled compression, negligible torque loss, ease of assembly, and special design features. They also allow for longer preventative maintenance schedules, minimize leakage issues, and help to reduce the total cost of operation.
A: Parker offers a wide range of elastomeric materials, suitable for temperatures from negative 200 to 600 degrees Fahrenheit and able to handle various chemistries, from nonpolar oils and fluids to harsh polar solvents.
A: Parker utilizes a variety of standard and specialized software packages like Catia, NX, Inventor, and SolidWorks. For design simulation, they use FEA software to predict and optimize seal designs. We also utilize Topaq scans and Fuji impressions for validation..
A: Applications with persistent challenges including leaking joints, difficult or time-consuming installation of sealing elements, or those that cannot afford leak failure can greatly benefit from Parker's bonded sealing technology.
A: Parker's seals minimize leakage issues during operations and allow for longer preventative maintenance schedules, resulting in overall cost savings.
A: Yes, the Mark VII Gask-O-Seal profile is mainly used for high pressure applications, capable of withstanding pressure up to 20,000 PSI..
A: Applications with persistent challenges including leaking joints, difficult or time-consuming installation of sealing elements, or those that cannot afford leak failure can greatly benefit from Parker's bonded sealing technology.
A: Yes, Integral Seals and Gask-O-Seals can be configured with multiple elastomers bonded to the same carrier, allowing for multiple port sealing to accommodate different fluid compatibility.
A: Because they are highly customizable, we are able to incorporate special design elements that assist with alignment during assembly, ensuring proper installation every time. Visual inspection features can also be provided to confirm proper installation without having to disassemble the part.
A: Yes, Parker Gask-O-Seals and Integral Seals are capable of sealing multiple ports on a single interface, offering a cost-effective and space-efficient solution.
A: The carriers can be made from a variety of rigid materials, such as metal or plastic, depending on the application's requirements. These include steel, aluminum, other metals, and injection molded thermoplastics.
A: Depending on the development or production stage of the product, they may be laser cut, stamped, machined, and if feasible, 3D printed or manufactured from sintered metal.
A: This is only true in some lower-pressure cases where we can use a low-closure-force seal profile in place of a bulky o-ring.
A: Controlled compression: since we can control the seal height and seal groove depth (in the case of Gask-O-Seal) and the retainer thickness (in the case of Integral Seal), we can achieve controlled compression of the sealing element. This allows us to manage the optimal stress the elastomer will have to withstand within the application, resulting in better sealing capability and a longer lasting seal.
A: An advantage using bonded sealing technology to vulcanize the elastomeric seal to the carrier plate, or directly onto the component, is there is no torque loss over time. With direct contact between the seal carrier and mating hardware, we have an alternate metal-to-metal load path, resulting in negligible torque loss over time to the clamping load. This benefit allows the customer to spread out maintenance schedules over a longer period of time, leading to overall product management cost savings.
A: Yes. Due to the rigid nature of the retainer, which is a component of our composite gasket, automation can absolutely be incorporated to pick and place the gasket onto the mating hardware interface consistently and accurately.
A: For Gask-O-Seal, we go as thin as .060”, and for Integral Seal, we’ve used retainers as thin as .030”. The thinner the retainer is, the shorter the seal bead height will need to be in order to maintain an acceptable stress level within the elastomer body, which is important for seal life.
A: Yes, absolutely. Parker has designed many retrofittable gaskets in the past to replace o-rings. These gaskets offer additional benefits such as shorter installation time and more sealing consistency due to no roll/twist behavior or stretch/compress behavior in o-rings.
A: Yes. Retainer edges can be painted to serve as a visual aid for seal installation confirmation. In some cases, we can provide extended retainer or elastomer tabs for the same purpose. Moreover, data matrix barcode or seal information can also be populated on these tabs for easy visual access (for part accuracy confirmation or reordering purposes)..
A: Parker has a variety of excellent conductive elastomer choices to employ in order to achieve an EMI-shielding conductive path between the two mating hardware components through the Parker gasket. Moreover, we can also add chemical conversion coating to enhance the conductivity through the gasket.
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