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Modern industrial systems cannot utilize a plain gasket seal between two flanges. It is of utmost importance that seals prevent leakage, and that pressure is maintained within set limits, while also keeping the system safe for continued use. We have worked with the petrochemical processing, automotive, food, and general machinery industries. In every regard, custom-engineered gasket seal solutions are superior to standard ones.
Longcheng Seal makes designed gasket seal solutions for specific conditions of operation, including temperature, pressure, media, and installation. We will show you custom solutions for gasket seals, the reasons for them, and their importance to different industries.
Custom Gasket Seals
Manufacturers of different industries have a preference for custom seals instead of standard ones. This is due to many factors including, cost, sealing durability, and long-term reliability. An area that has a significant impact on the performance of a gasket seal is the choice of sealing materials.
When sealing a gasket for a vehicle, do not use sealing materials for temperatures exceeding 130 ̊C and pressures that do not exceed 329.89 psi. Materials that can be used include graphite, PTFE, and some composite materials. PTFE and specialized elastomers are preferred in professional sealing. In food and pharmacopeial applications, sealing materials must be FDA compliant.
The use of metal reinforced gaskets that are reliable for very high pressure applies to the oil and gas industry.
The American Society for Testing and Materials, ASTM, describes the materials' performance to account for the failure of seals under the specific conditions. Choosing a material involves wrapping sealing and performance, endurance, and the device's safety in one.
Based on experience, the failure of a piece of equipment is often due to the wrong choice of materials rather than the equipment not being installed properly. In a typical sealed system, failure can be avoided with the use of custom gaskets designed to accommodate specific temperature, chemical, and pressure conditions.
Custom Gasket Size and Shape Options
When choosing a gasket, consumers can only choose from a relatively small number of gasket sizes, usually dictated by the sizes of the flanges.
However, this will not work in many instance. For irregular equipment configurations, custom fittings are required.
These custom fittings can take the form of:
- -Custom inner and outer diameters
- -Custom thickness
- -Custom shapes and
- -Precision CNC machining
Seals can be custom-designed and developed for compressible materials, ensuring optimal gasket sealing performance using advanced die cut and CNC (Computer Numerical Control) technology.
The latest custom gaskets are providing unprecedented leakage performance in the facility, as no other solution has. Reduction in leakage has exceeded 40% for the first time ever in the Facility. This can be attributed directly to the dimensional customization.
Seals from multi-layer and composite gaskets are also required in the more challenging applications, such as those involving pipes and heat exchangers operating at high temperatures and high pressures.
Some examples of custom gasket structures include:
- – Metal gaskets having a soft sealing surface layer
- – Graphite metal gaskets
- – PTFE gaskets with elastomer cores
The Fluid Sealing Association reports that composite structures enhance compression and improve recoverability under fluctuating pressures.
Custom gasket seals are made mainly for heavy industries. They are made specifically for industries that are likely to experience thermal expansion and vibration. Because of these custom made solutions that are flexible and durable, equipment will last longer and will greatly reduce chances of unplanned catastrophic leakage.
Surface treatments made to withstand harsh operating conditions can greatly enhance adhesion, wear, and corrosion resistance of gasket seal.
Some of these customizations include:
- – Coatings to reduce adhesion
- – Treatments to reduce corrosion on surfaces
- – High surface friction textures
- – Lamination of PTFE surfaces
These enhanced treatments are also very useful in chemical plants and offshore platforms that are constantly in contact with dangerous fluids. Coated gasket seals significantly reduce flange surface damage and maintenance efforts.
Field data has shown that with specialized coatings applied, the gasket seal replacement frequency in chemical storage tanks has decreased by about 30%. This leads to increased operational efficiency as well as savings that can be easily measured.
Tailored Compliance Solutions by Industry
Different industries have different regulations that need to be adhered to, for example:
- Food processing plants may be required to comply with FDA or EU food-grade standards.
- Materials in the pharmaceutical industry must be designed to be non-contaminating and sterile.
- Sealing solutions for the oil and gas industry must be compliant with the API.
- Materials used in power plants must be able to withstand high temperature and pressure.
The FDA has very specific regulations about what materials can be used to ensure that food does not become contaminated. A gasket seal designed for food processing machinery must seal well, and be safe and non-toxic.
We work with our clients to ensure that every gasket seal is compliant with the laws regulating that particular industry. With our customized solution, you can have increased dependability in our transparency, as we provide you with documentation, test results, and material traceability.
Engineering Support and Testing Services
Gasket manufacturing is just one component of more comprehensive customized gasket solutions. Engineering support, performance testing, and post-sale technical support are also included. Services typically include:
- Assessment of temperature, pressure, and media concerns.
- Flange and bolt load evaluation.
- Aiding with material construction.
- Development of testing prototypes.
- Advising technical development.
Tests
The process also involves professional testing (compression set, thermal cycling, and leakage testing) etc. Supporting the technical clamp for the design is the purpose of testing the final gasket seal.
Customized engineering of gasket seals minimizes inadvertent shutdowns and boosts the productivity of systems and equipment.
Importance of Customized Gasket Seal Solutions
A gasket seal, despite being a minor component, greatly impacts the efficiency and safety of the overall system. Custom solutions enable companies to determine the best materials, structural designs, precise dimensions, surface treatments, and compliance certifications.
Longcheng Seal's hands-on project experience shows that customized gasket seal solutions outperform ordinary seals in durability, reliability, and cost-saving. Engineering, applicable standards, and accurate manufacturing combine to ensure safe operations and extended lifespan to your equipment.
Choosing the right custom gasket seal should not only be concerned with leakage, but the whole system.
