Coantec

  In industries involving flammable and explosive gases, such as the petroleum, chemical, natural gas, and pharmaceutical industries, non-destructive testing of internal equipment (such as inspecting containers, pipes, and valves for corrosion, cracks, or residue) is a crucial maintenance step. As a primary inspection tool, industrial bore scopes must incorporate strict explosion-proof measures to prevent them from becoming ignition sources during operation and potentially causing catastrophic accidents. This article explains the types of explosion-proof bore scopes and their key technical specifications.   I. Explosion-Proof Types The type of protection provided by explosion-proof equipment directly determines its applicable safety zone and safety level. According to international IEC and national GB standards, the following explosion-proof types are primarily used:   Explosion-proof type symbol Core Principles Typical application areas Intrinsically safe i Energy Limita...