Chesterton Steel Trap Metal/Graphite Gasket

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Chesterton Steel Trap Metal/Graphite Gasket
Unique, Problem-Solving, Non-Standard Semi-Metallic Gasket


​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Steel Trap™​ is the preferred gasket when you need improved performance but ​require lower seating stresses. It offers the sealing properties of an encapsulated element in a compression seal, is blowout resistant, and reduces the risk of fire often caused by leaky gaskets.

Steel Trap is the ideal replacement for problem applications. It is available in standard and custom designs, including a unique self-locating design. It also offers the ability to target the location sealing element and tailor the gasket placement to the desired flange surface.​

Chesterton Steel Trap Metal/ Graphite Gasket is manufactured with concentric, isolated convolutions in sheet stainless steel that trap pure graphite against the flange face. As the flange is tightened, the convolutions are progressively flattened, thus trapping the graphite sealing media. Not only is a highly effective seal effected against both faces of the flange, but the graphite is protected against oxidizing atmospheres and corrosives. Steel Trap gaskets can remain in place and will continue to seal effectively until removal is necessary for equipment servicing or repair.

These seals pay for themselves many times over in reduced maintenance and downtime. The unique, self-locating design allows the same size gasket to be used in the vast majority of flange pressure classes. This results in unmatched time savings in locating the right gasket, while reducing inventory and virtually eliminating the chance of incorrect gasket selection.

Thin design and soft sealing material encapsulation provides increased blowout safety
Replaces sheet gaskets without equipment modification
Can be manufactured in virtually any shape
Pipe flanges
Heat exchangers
Pressure vessels
Valve bonnets

MaterialsMetal carrier from virtually any metal with graphite, PTFE, or ceramic sealing elements
TemperatureAtmosphere –200°C to 500°C (–328 ̊ F to 932 ̊ F) Steam up to 650°C (1200 ̊ F) Inert media –200°C to 900°C (–328 ̊ F to 1650 ̊ F)
​Pressure415 bar g (6000 psig)​​
pH0 to 14



SDS Steel Trap (English) Steel Trap (English)pdf



Article: Stationary - Reliable Flange Sealing Flange Sealing.pdfArticle: Stationary - Reliable Flange Sealingpdf
Catalog: Chesterton Packing and Gasket Product Catalog (English) Chesterton Packing and Gasket Product Catalog (English)pdf
Brochure: Flange Gaskets - Chesterton Gasket Centers (English) Flange Gaskets - Chesterton Gasket Centers (English)pdf
Brochure: Heat Exchanger Reliability Program (English) Heat Exchanger Reliability Program (English)pdf
Case Study 013 Stationary Equipment - Shell And Tube Heat Exchanger (English) Study 013 Stationary Equipment - Shell And Tube Heat Exchanger (English)pdf