【Haichuan Chemical Technical Documentation】The little Gran head: a fault culprit that is easily overlooked

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【Haichuan Chemical Technology Documentation】The little Gran head: a fault culprit that is easily overlooked. In harsh environments such as chemical plants, power plants, and sewage treatment facilities, moisture, dust, and corrosive substances can easily penetrate the equipment on site and gradually move inward along the cables toward the instruments. This process is often slow and subtle, but its consequences are direct: component corrosion, local short circuits at the terminals, signal drift, and malfunctioning, ultimately leading to the inability of the equipment to operate reliably and continuously. There were many \"sporadic failures\" at the site, which, upon investigation, were actually the result of \"long-term failure of the inlet seals.\" Therefore, when connecting instrument cables, the quality of the dust-proof, water-proof, and corrosion-resistant sealing directly determines the reliability and longevity of the instruments. Whether the selection of a gland head (cable entry device/cable clamping seal joint) is scientific is often the key to whether this defense line can be effective.