At Goodrich Gasket, we manufacture Non-metallic flat gaskets from arimid fiber, glass fiber, elastomer, Teflon (PTFE), graphite etc. according to ASME B16.21 which covers types, sizes, materials, dimensions, dimensional tolerances, and markings for non-metallic flat gaskets.
At Goodrich Gasket the following information shall be included in markings: manufacturer’s name or trade mark or material designation. Gaskets shall be packaged with NPS, class, gasket manufacturer’s name, material designation, thickness and ASME B16.21 marked or tagged on the package or the gasket. At the option of the manufacturer the DN designation may be included.
NPS followed by a dimensionless number is the designation for nominal pipe size as described in ASME B36.10M and is related to the reference nominal diameter DN used in international standards. Class followed by a dimensionless number is the designation for common flange pressure-temperature ratings as given by the referenced flange standards.
At Goodrich Gasket, non metallic flat gaskets are made of resilient or pliable materials and metal or non metal composites are incorporated as reinforcement or filler material. The material selected shall be compatible with the fluid and suitable for the pressure-temperature conditions of the service.
Selection of a flat gasket material and gasket thickness suitable for given service application is the responsibility of the user subject to the requirements of any applicable code or government regulation and also by considering the properties of the flat gasket material as well as the intended service application.