The difference between explosion-proof cable gland and explosion-proof gland head (which can also be referred to as an explosion-proof cable fixed head) mainly lies in their specific functions and structures, although both are designed for use in hazardous environments to prevent sparks from igniting explosive gases or vapors.
Primary Function: An explosion-proof cable gland is primarily used for securing and sealing cables that enter or exit an electrical enclosure or apparatus.
Key Features: It typically features a compression mechanism that tightly grips the cable and forms a waterproof, dustproof, and explosion-proof seal. This prevents the ingress of moisture, dirt, and explosive gases or vapors.
Applications: Widely used in industries such as oil and gas, petrochemicals, mining, and others where hazardous environments exist.
Primary Function: An explosion-proof gland head, or cable fixed head, is specifically designed for fixing and protecting cables within electrical equipment, particularly in hazardous locations.
Key Features: It often includes features such as threaded connections for easy installation, sealing compounds or gaskets to ensure an explosion-proof seal, and materials that are resistant to corrosion and high temperatures.
Applications: Commonly used in machinery and electrical equipment, marine environments, and corrosion-resistant equipment where cables need to be securely fixed and protected from external hazards.
Comparison
Function Focus: While both serve explosion-proof purposes, the cable gland focuses more on sealing and securing cables at entry points, whereas the gland head focuses on fixing and protecting cables within equipment.
Structural Differences: Cable glands typically have a compression sleeve or clamp for securing the cable, while gland heads may include additional features such as threaded connections and sealing compounds.
Usage Context: Cable glands are often used in conjunction with explosion-proof enclosures to ensure the integrity of the enclosure's seal. Gland heads are more specific to the fixation and protection of cables within equipment in hazardous environments.
In summary, the explosion-proof cable gland and explosion-proof gland head serve related but distinct purposes in hazardous environments, with the gland focused on sealing and securing cable entries and the gland head focused on fixing and protecting cables within equipment.
