Mechanical cable glands
Definition and introduction
Basic concept of mechanical cable glands
Mechanical cable glands are devices used to secure and seal the passage of electrical cables or pipes through panels, walls or junction boxes. Their main function is to prevent the entry of dust, water, humidity and other contaminants, guaranteeing the integrity of the electrical or mechanical system where they are installed. In addition, they provide a firm hold that protects the cables from mechanical stress such as traction, twisting or vibrations.
These elements are fundamental in the electrical, petrochemical, naval, construction and other areas where the safety and protection of cables is essential to avoid failures and risks in installations. The mechanical cable gland combines resistant materials with a design that allows the pressure on the cable to be adjusted, adapting to different diameters and environmental conditions.
Types of mechanical cable glands
Compression gland
Compression cable glands are the most common and work using a screw or nut that, when tightened, compresses a flexible ring or insert on the cable, sealing it and holding it firmly. This type is suitable for cables with standard insulation and adapts to different diameters thanks to its interchangeable inserts.
Its design allows for simple and quick installation, as well as facilitating maintenance or replacement of the cable without having to dismantle the entire structure. They are widely used in electrical cabinets, control panels and industrial systems where reliable sealing against dust and moisture is required.
Cable gland with O-ring
This type of stuffing box incorporates a rubber or elastomer O-ring that improves sealing against liquids and gases. The O-ring is located between the body of the stuffing box and the cable, guaranteeing superior tightness, especially in humid environments or with the presence of chemical substances.