The wall through conduit, often referred to as a wall through pipe, waterproof conduit, or wall embedded pipe, serves as a critical hardware fitting or insulation support component for pipelines traversing walls. It finds extensive utility across diverse domains like construction and electricity. Below, we delve into its classification, structural intricacies, multifaceted purposes, and essential selection considerations:
Comprehensive Classification and Distinctive Characteristics
• Categorized by Waterproofing and Distinct Usage Scenarios
The Rigid Waterproof Sleeve stands out with its robust composition of thick-walled steel pipe paired with a wing ring—a circular steel plate enveloping the steel pipe. Exhibiting exceptional strength and rigidity, this sleeve is engineered to withstand intense pressure and tension, ensuring it remains unyielding and unbreakable. Its material and structural finesse afford excellent waterproof efficiency, shielding against moisture and rainwater intrusion, while its formidable corrosion resistance triumphs over harsh environments and chemical attacks. Typically, it finds its place in settings like basements, where waterproofing is paramount, and pipeline vibration or expansion is not a concern. For instance, in a building's basement, it effectively prevents groundwater infiltration through wall-penetrating pipes.
The Flexible Waterproof Conduit is designed with external wing rings and incorporates internal components such as retaining rings and flange threads. It is ideally suited for scenarios where pipelines pass through walls exposed to vibration or necessitate stringent waterproofing, such as in civil defense walls, water tanks, and water pump rooms. For example, in a sewage treatment plant's water tank, this conduit not only wards off water leakage but also adeptly accommodates vibrations during equipment operation.
• Segmentation by Material and Intended Purpose
Ceramic Insulated AC Wall Bushing, also known as Porcelain Bushing, is meticulously assembled from ceramic components, mounting flanges, and conductors. Widely utilized in the power sector, it functions as an insulator and support mechanism for conductive components passing through walls or other grounding structures.
The Dry Type Capacitive AC Wall Bushing, crafted from Silicone Rubber, boasts an oil-free, gas-free, and porcelain-free design. Its compact and lightweight nature, coupled with minimal maintenance requirements, makes it fire-resistant and explosion-proof. Equipped with precision current transformers, it ensures uniform voltage distribution along its surface. The use of silicone rubber as external insulation significantly enhances its pollution flashover resistance.
Structural Overview
Typically constructed from ceramic parts, mounting flanges, and conductors (for conductive through wall sleeves), the busbar through wall conduit, however, lacks conductive elements. Except for select products using mechanical clamping, the conventional fixation method for porcelain sleeves and flanges involves cement adhesive. Copper conductors are stabilized using centering washers and nuts, whereas copper and aluminum conductors are secured with centering washers and open pins. To mitigate initial corona and achieve uniform voltage distribution, certain high-voltage bushings (20, 35kV) incorporate strategic structural enhancements, such as thickening the porcelain wall and umbrella near the flange, and applying semiconductor glaze to specific areas, subsequently baking them to fine-tune electric field distribution.
Diverse Applications and Purpose
In architectural domains, wall through conduits safeguard pipelines traversing walls, fulfilling waterproofing and vibration reduction criteria. They ensure the structural integrity of buildings and the seamless operation of pipeline systems. These conduits are prominently employed across various building plumbing, fire protection, ventilation, and related pipeline projects.
In electrical sectors, these conduits are pivotal in power plants, substations, distribution setups, and high-voltage electrical appliances. They facilitate the passage of conductive components through walls or other grounded entities, providing essential insulation and support to guarantee the safety and reliability of power transmission mechanisms.
Critical Selection Criteria
• Type and Configuration: Select the appropriate indoor or outdoor variant based on the installation context; Determine whether a wall conduit with a conductor or a busbar type wall conduit without a conductor is needed, depending on specific usage requirements.
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