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Metal Textiles knitted wire mesh exhaust seals and exhaust gaskets provide resiliency, strength in compression, and a nearly unlimited choice of materials, constructions, or shapes for specific applications. Most important, they provide superior performance in hostile environments where other materials would fail as a result of decomposition or deformation.
Knitted mesh exhaust seals have no seams or ribs—normally the weak areas of any seal—so that when used in gasketing and sealing applications, they provide high-strength uniformity throughout the sealing area. Unlike woven or braided materials, knitted mesh consists of a continuous series of interlocking loops knitted in a tubular form, allowing two-dimensional movement in the plane of the mesh. This results in unusual flexibility and resiliency, even under heavy compression loads and exposure to extreme temperatures.
Due to its inherent resiliency and strength in compression, knitted wire mesh also yields to applied force—yet recovers to nearly its original shape when the force is removed.
Flexibility in Design and Performance
When knitted mesh is combined with other materials, the mesh serves as abackbone” support imparting resiliency and strength in compression to the seal.Because of the wide array of materials available for construction, knitted wiremesh can also be used to create any number of flexible, resilient gasketing orseal configurations over a broad range of operating conditions.
Knitted wire mesh seals and gasketing may be used for static joints, as wellas those where there is freedom of positioning in repeated closures. In all ofthese applications, conventional materials require periodic replacement. Evenwhere replacement can be scheduled well in advance of the estimated failurepoint, replacement cost and downtime are high.
Seals and Gaskets that Offer Flexibility, Strength,High-Temperature
Resistance...
And Long-Term Performance
Depending on the specific application, knitted wire can be fabricated from almost any material or combination of materials that can be drawn into wire or filament form. For extreme environments, the most frequently used material is stainless steel wire.
But other ductile metals, such as aluminum, copper and special alloys, can also be used-as well as synthetic fibers, polymers and yarns-as either single substrates or configurations of multiple materials. This wide range of material options permits flexibility in producing gaskets that can be expressly designed for specific critical applications.
Typical applications include process valve shaft and stem seals where sealability is required along with seal resiliency, and temperature and corrosion resistance. Due to these performance characteristics, Metal Textiles seals are also commonly used in many other applications and industries, including petroleum and petrochemicals.
Metal Textiles also has the unique capability to integrate elastomers and plastics with knitted wire mesh technology for extremely hostile-environment applications-including the kinds of sealing problems encountered with temperatures to 260°C and pressures to 138 MPa.
The unique characteristics of knitted wire mesh construction provide the necessary resilience and mechanical strength to restrict extrusion of the most free-flowing materials while maintaining excellent memory.
The unique fabrication process used by Metal Textiles makes possible the production of seals, gaskets, and gland packings in forms, shapes and densities unobtainable by any other method or material.This process allows the creation of sealing media for virtually any application, including:
Metal Textiles knitted wire mesh exhaust seals and exhaust gaskets provide resiliency, strength in compression, and a nearly unlimited choice of ...
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