Flange seals provide the front-face static sealing function within flange connections. There are two major design principles available, either for internal or external pressure. Various designs in a broad range of compounds provide individual features. Parker’s flange seals offer enhanced sealing performance from pressure-free to high-pressure conditions. Designs can be optimized to be insensitive to pressure peaks, show high extrusion resistance or media resistance.

Parker´s fastener seals are composite sealing washers, consisting of a metallic carrier and a vulcanized elastomer sealing lip. They provide a static sealing function on flanges or threaded connections, and consistently assure ideal compression conditions between the housing components to prevent the destruction of the sealing lip. Parker´s fastener seals provide long and reliable service, a high degree of reusability, and easy assembly. They have been engineered to eliminate over-compression, provide easy and accurate placement of the seal thanks to a self-centring design, and deliver improved joint stability via the solid metal-to-metal contact.