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The MATCO-NORCA gna2.5 is a non-asbestos ring gasket designed for use in flanged piping connections rated at 150LB pressure class. With a pipe size of 2.5 inches and a gasket thickness of 0.0625 inches (1/16 inch), the gna2.5 fits between mating flanges to create a leak-free static seal. The gasket measures 2.875 inches inner diameter by 4.875 inches outer diameter. It is installed by licensed plumbers and pipefitters working on water, steam, or general-service piping systems where asbestos-free materials are required by code or specification.
This gasket is suited for residential and commercial flanged piping assemblies operating within 150LB ANSI flange ratings. Typical applications include water supply and distribution systems, hydronic heating piping, and general industrial or mechanical room piping where a reliable, code-compliant static seal is needed at bolted flange joints. The non-asbestos construction meets modern material requirements for safe handling and disposal on the job site.
Designed as an OEM-style replacement ring gasket for 2.5 inch, 150LB ANSI-rated flanged piping connections in residential and commercial plumbing and mechanical systems.
Installation is performed by licensed plumbers or pipefitters. Shut off and depressurize the piping system completely before separating flanges or replacing gaskets. Clean flange faces of debris, old gasket material, and corrosion before seating the new gasket. Tighten flange bolts in a cross-pattern sequence to achieve even compression across the gasket face, following applicable IPC or ASME B31 code requirements for the system type.
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