Wall through conduit, also known as wall through pipe, waterproof conduit, or wall embedded pipe, is an essential hardware fitting or insulation support component impeccably designed for pipelines traversing walls. Ubiquitously utilized across various fields such as construction and electricity, this exceptional product offers unparalleled benefits. We now delve into its classification, intricate structure, versatile purpose, and essential selection pointers:
Classification and Distinctive Characteristics
• Meticulously Classified by Waterproofing and Usage Scenarios
Rigid waterproof sleeve: This robust sleeve features thick-walled steel pipes complemented by a wing ring—an expertly fitted circular steel plate. Renowned for its high strength and rigidity, it's engineered to endure substantial pressure and tension, ensuring pipelines remain unyielding under stress. Its superior material and structural design grant it exceptional waterproof prowess, effortlessly isolating moisture and deflecting rainwater erosion. Furthermore, the sleeve boasts formidable corrosion resistance, enabling it to resist even the harshest environments and chemical erosions. An ideal choice for basements and areas necessitating steadfast waterproofing without accommodating vibration or expansion deformation. In scenarios where basement pipelines penetrate walls, it effectively precludes groundwater infiltration.
Flexible waterproof conduit: Featuring external wing rings and internal components like retaining rings and flange threads, this conduit is perfectly suited for structures where pipelines navigate through walls exposed to vibration or demand stringent waterproofing. Perfectly fitting for civil defense walls, water tank installations, and water pump rooms, it ensures the pipeline within a sewage treatment plant's tank remains impermeable while adeptly adapting to operational vibrations.
• Expertly Classified by Material and Purpose
Ceramic insulated AC wall bushing (porcelain bushing): Crafted with precision from ceramic parts, mounting flanges, and conductors, this bushing finds its primary application in the power sector. It serves a crucial role as an insulation and support component for conductive elements passing through walls or other grounding constructs.
Dry type capacitive AC wall bushing (silicone rubber bushing): This innovative bushing is oil-free, gas-free, and porcelain-free, boasting a compact size and light weight. Its low maintenance needs and fire-resistant, explosion-proof nature make it highly desirable. Enhanced with high-precision through type current transformers, it ensures uniform voltage distribution along its surface. Utilizing silicone rubber for external insulation further elevates its pollution flashover voltage capabilities.
Structure
Typically assembled from ceramic components, mounting flanges, and conductors (in conductive through wall sleeves), the busbar through wall conduit does not incorporate conductive parts. While some products utilize mechanical clamping, the porcelain sleeves and flanges are commonly secured with cement adhesive. Copper conductors are stabilized using centering washers and nuts, whereas copper and aluminum conductors are fixed with centering washers and open pins. To enhance initial corona, specific voltage level bushings (20, 35kV) adopt uniform voltage measures—like augmenting or thickening the porcelain wall and umbrella near the flange and applying semiconductor glaze on precise porcelain parts, followed by baking to short-circuit and improve electric field distribution.
Purpose
In the architectural domain, these conduits safeguard pipelines passing through walls, meeting waterproofing, vibration reduction, and other essential criteria. This assurance preserves the structural integrity of buildings while ensuring seamless pipeline operations. They are extensively applied across various building plumbing, fire protection, ventilation, and other pipeline engineering projects.
In the realm of electricity, wall conduits are pivotal in power plants, substations, distribution equipment, and high-voltage electrical appliances. They facilitate the safe passage of conductive parts through walls or other grounding objects, providing vital insulation and support to ensure the unwavering safety and stability of power transmission systems.
Key Selection Points
• Type and Pattern: Opt for indoor or outdoor types based on installation locale; Select wall conduit with conductor or busbar type wall conduit sans conductor, tailored to the intended purpose.
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