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Learn the essential steps for proper installation of expanded graphite gaskets to ensure a reliable, leak-free seal in flanged connections.

The ideal hardness for a ring joint gasket depends on the flange material and service conditions, typically ranging from a maximum of 120 HB for soft iron to 160 HB for low-carbon steel, with softer gasket materials generally preferred to prevent damage to flange faces during compression.

This article explores the reusability of double jacket gaskets after disassembly, examining the key factors that determine whether they can maintain a reliable seal or need replacement.

PTFE gaskets provide excellent chemical resistance, a broad temperature tolerance, low friction, and non-stick properties, ensuring reliable sealing in aggressive environments.

Serrated gaskets are sealing components with concentric grooves machined into their metal surface, often with a soft facing layer. They work by creating multiple concentric sealing lines under compression, where the serrations concentrate bolt load to form a tight, reliable seal, while the soft material fills surface imperfections.

Non-asbestos gasket materials are sealing products designed to replace traditional asbestos-based gaskets, offering safety without compromising performance. Common types include aramid fiber, graphite, PTFE, elastomeric, and fiberglass-based materials, each suited for specific temperature, pressure, and chemical resistance requirements.