Page 3 of News about Gaskets, Bolt & Nuts

In high-pressure and impurity environments, flange gaskets ensure sealing and maintain stable liquid gas transmission through filling space and tight fitting design. Non-metallic, semi-metallic, and metallic gaskets are suitable for different working conditions, and ASME standards accurately regulate materials and processes. From low-pressure full plane to high-temperature ring connection surfaces, the soft and hard materials are precisely interlocked under bolt pressure, achieving the ultimate...

Detailed Steps And Notes for Replacing Flange Gaskets 1. Preliminary preparations Before starting to replace the flange gasket, we need to ensure that we have made sufficient preparations. Before replacing the flange gasket, wear appropriate labor protection equipment such as gloves, goggles, etc. to ensure safety and protection during the operation. These preparations include understanding relevant safety regulations, preparing necessary tools and equipment, and ensuring the safety and cleanliness...

Spiral-Wound Gaskets (1) Applicable Scope of the Spiral-Wound Gasket According to the petrochemical industry standard SH 3407-2013, spiral-wound gaskets are suitable for the following conditions: Nominal pressure range: PN 1.0–25.0 MPa Temperature range: Stainless steel strips with special asbestos filler: –50 to 500 °C Stainless steel strips with flexible graphite filler: –196 to 800 °C (≤ 600 °C for oxidizing media) Stainless steel strips with PTFE filler: –196...

Standards and Selection of Gaskets This article provides a comprehensive overview of gasket standards, manufacturer selection criteria, and selection methodologies. It outlines key gasket standards used in the chemical and petrochemical industries, specifies requirements for gasket manufacturers, and discusses critical factors in gasket selection, including pressure, temperature, and medium compatibility. Various gasket types—such as asbestos-rubber, PTFE, and spiral-wound gaskets—are...