Gasket beading is an outstanding choice for improving sealability and can eliminate the need to redesign flanges or upgrade materials when resolving performance issues. Beaded gasket technology employs the application of a high-performance, resilient elastomer to the surface of a gasket. The bead improves the sealability of the gasket by concentrating available load on the areas of the gasket where the bead has been applied.
The applied bead effect is two-fold:
- The bead helps to seal flange irregularities. The elastomer conforms to gouges, scratches, and “as cast” surfaces to help provide an effective seal.
- The addition of the applied elastomer increases surface pressure and flange load exactly where your application needs it most. CGR Products can analyze the pressure distribution of your application with our flange analysis service.
The design and placement of the bead can greatly improve the sealing characteristics of the most problematic flanges without alteration to expensive machined or cast flanges.
Our gaskets can be designed to various thicknesses based on the sealing pressure required. The gasket material can be made from construction sheet, metal, or dual elastomer materials. We use various gasket fabrication processes including die cutting, kiss cutting, laminating, milling, molding, saw cutting, slitting, and turning to create beaded gaskets with a width of up to .125″ and a height of 0.001″ – 0.010″ using extremely tight tolerances.
Our gaskets are manufactured with precision so that our customers only receive quality workmanship for their assembly. This includes intensive inspection processes in place to ensure gaskets perform to optimal standards.
We use a number of inspection devices to ensure quality control: flange analysis, caliper measurement, coordinate measurement, final inspection, first article inspection, in-process inspection, micrometers, pin gauges, and Virtek LQC scanners. We can also perform a number of tests to understand pressure distribution and leak paths.
We can offer beaded gaskets in various production quantities from low to high volume runs with a standard 1 week lead time for typical materials. Non-standard materials may take more time as production is ultimately dependent on the material being used. Regardless, our beaded gaskets are backed by additional services that help provide value to our customers. This may involve bar code labeling, product certification, packaging, stocking programs, engraving or printing on parts, reverse engineering services, slitting, stripping, and waterjet cutting. We also offer a wide range of materials for custom die cut gaskets and seals which include 3M products, acrylics, EVA, polyurethanes, PTFE, rubber, Mylar, and much more.
With numerous industry standard qualifications, we ensure our beaded gaskets are the best in the industry. Serving multiple industries from appliances to small tractor manufacturing, we pride ourselves on innovation, customer service, and innovative performance in our product designs.
This is a tactile pressure film image of a typical flange gasket. The application is a refrigeration valve with flange surfaces of machined steel and brass. The gasket is secured with four 1/2" bolts torqued to 40 ft./lbs. The density of red indicates the varying amount of pressure on the gasket.
The pressure analysis illustrates a problem common to many flanges: when torqued, the flange loads heavily near the bolt holes. The lack of effective sealing load between bolt holes is very apparent.
The three dimensional image illustrates the severe load reduction along the gasket span between bolt holes. The gasket material is loaded with over 7400 psi around the bolt holes, while the mid-point of the span is as low as 2500 psi.
This pressure film image shows a beaded gasket that was designed to correct the sealing problems inherent in this application. The addition of a .004" thick bead around the I.D. increases the load on the gasket material, increasing compression and providing an effective seal. The gasket is again secured with four 1/2" bolts.
This pressure analysis displays the load distribution on the beaded gasket. A load of over 7400 psi has been achieved at the bead location, surrounding the I.D. completely.
The three dimensional image illustrates the continuous load placed around the I.D. of the gasket. The gasket is now compressed evenly and distributes enough load to seal any potential leak paths.
Gasket Fabrication Process
Sealing Pressure Dependent
Have the Ability to Hold the Tightest Tolerances
Coordinate Measuring Machine
First Article Inspection
Virtek LQC Scanner
Certificate of Conformance Reports
SPC Inspection Documents
Bar Code Labeling
Material and Product Certifications
Part / Engineering Design Assistance
Part Stocking Programs
Printing on Parts
Vendor Managed Inventory
High Volume Production Runs
Typical Lead Time
Standard: 1 Week or Less
Non-Standard: Material Dependent
Electrical Components and Enclosures
Escalators and Elevators
Industrial Sealing (Valves and Fluid Sealing)
Plastic Injection and Blow Molders
Truck Body and Cab
JPG or JEPG