Plastic Inspection Chamber
Plastic Inspection Chamber
Implementation Standard: GB/T 41048-2021;CJ/T 233-2016;CJ/T 326-2010;International reference standards: including European standard (PREN193598.2), British standard (BS7158), and Japanese standard (JISA5731), etc
Material: Polymer resins (such as PE, PVC-U, PP) are the main raw materials
Caliber range: OD200, OD315, OD450, OD500, OD630, OD700, OD1000 mm
Custom orders are supported.
Description
1.Product Introduction
A plastic inspection chamber is a subsidiary structure in drainage systems, primarily made from polymer resins (such as PE, PVC-U, PP) through one-time injection molding or other forming processes. It mainly consists of a base, shaft, cover, and related accessories, and is installed at intersections, bends, or drop points of drainage pipelines for the inspection, cleaning, and dredging of pipeline networks.
The emergence of plastic inspection chambers aims to replace traditional brick-built inspection chambers. Their development has been driven by national environmental policies introduced since 2004, addressing issues such as long construction cycles, susceptibility to leakage, and groundwater contamination associated with traditional inspection chambers.
Parameter Category | Specific Indicators | Technical Parameters / Standard Values |
Scope of Application | Maximum Outer Diameter of Drainage Pipe | ≤ 1200 mm |
Maximum Burial Depth | ≤ 6-8 m |
Long-term Working Water Temperature | ≤ 40 °C |
Shaft Diameter (DN) | Common Specifications | OD200, OD315, OD450, OD500, OD630, OD700, OD1000 mm |
Load Capacity | General Traffic Lane | Gross Vehicle Weight 15t (Rear Wheel Load 5t) |
Fire Truck Access Lane | Gross Vehicle Weight 30t (Rear Wheel Load 6t) |
Material Properties | Static Load | No cracking or fissures in the shaft and base under a 15KN static load |
Structural Series | Common Types | PR and OP Series (Buried Drainage); SQ Series (Containers / Inspection Chambers); VW Series (Pipe Fittings) |
3.Connection Methods
- Core Connection Technology:Flexible spigot-socket connections using rubber sealing rings are standard between the chamber base and buried pipes, as well as between the shaft and the base. This design accommodates minor angular deflection, effectively resisting leaks caused by ground settlement and deformation.
- Other Connection Methods: For PVC-U bases and shafts with diameters ≤315 mm, solvent cement joining is an alternative to rubber seals. Heat-shrink sleeve connections are also applicable.
- Chamber Base Variants:To suit complex network layouts, bases are available as straight-through, 45° / 90° bends, tees, and cross types. Accessories like reducers and adjustable-angle adapters provide further flexibility for pipe diameter and alignment changes.
4.Key Advantages & Selling Points
- Exceptional Durability:Resistant to chemical corrosion and environmental aging, with a service life exceeding 50 years.
- Superior Environmental Performance:Manufactured from non-toxic, recyclable materials. The hermetically sealed system prevents effluent leakage and protects groundwater.
- Excellent Structural Integrity: The flexible joint system allows unified movement with the surrounding soil, eliminating stress points and differential settlement issues common with rigid interfaces, thus preventing ground collapse.
- Rapid, Simplified Installation:Modular components and a lightweight design allow for on-site adjustment and assembly. Installation is 10-20 times faster than brick masonry, enabling all-weather construction and shorter project cycles.
- High Hydraulic Efficiency:A smooth bore and integrated flow channels minimize friction and the risk of blockages, offering significantly improved flow capacity compared to traditional chambers.
- Cost-Effectiveness:Savings are achieved through lower transport and handling costs, reduced labor, minimal maintenance, and conservation of natural resources.
5.Product Applications
- Application Scope:Ideal for buried drainage systems in residential and commercial developments, municipal infrastructure, industrial parks, and urban renewal projects.
- Sewer Inspection Chambers: Typically utilize channeled bases to maintain flow continuity.
- Stormwater Inspection Chambers:Can be specified with channeled bases or catch-pit bases (with silt sumps) for road gullies to intercept sediment.
6.Testing & Certifications
- Primary National Standards:
- GB/T 41048-2021Technical Requirements for Plastic Inspection Chambers for Urban Drainage
- CJ/T 233-2016Plastic Inspection Chambers for Drainage in Building Complexes
- CJ/T 326-2010Plastic Inspection Chambers for Municipal Drainage
- International Standards:Compliant with or designed with reference to European (e.g., PREN193598.2), British (BS7158), and Japanese (JIS A5731) standards.
- Standard Tests: Includes ring stiffness, impact resistance, seal integrity, chemical resistance, vertical loading capacity, thermal stability (Vicat Softening Temperature), and dimensional/visual checks.
7.Manufacturing Process Flow
- Material Preparation:Using prime-grade polymers like HDPE, PP, or PVC-U.
- Injection Molding:Molten material is injected into high-precision molds under pressure to form complex parts (e.g., bases) in a single cycle, ensuring structural consistency and wall thickness uniformity.
- Cooling & Stabilization:Controlled cooling ensures dimensional stability and achieves required mechanical properties.
- Finishing & QA:Necessary fittings are assembled. All products undergo rigorous quality assurance inspection prior to dispatch.
8. Packaging and Delivery
- Secure Packaging:Critical areas (e.g., spigots, sockets) are protected with caps. Bundling is used for multiple units.
- Complete Labeling: Each package includes a certificate stating product name, specification, production date, standard, and manufacturer details.
- Safe Transport:Protection from impact, abrasion, and deformation during handling is required. Soft lifting slings are recommended.
- Proper Storage:Store horizontally indoors on a flat surface, shielded from direct sunlight and freezing temperatures. Use pallets or supports to keep units ≥100 mm off the ground.
9. Sales Service
- Pre-Sales:Provides product selection advice, technical design support, and site assessment services.
- In-Sales:Offers on-site or remote technical guidance to ensure proper installation practices.
- After-Sales: Backed by product warranties, a responsive service system for issue resolution, and ongoing technical support.
10. Corporate Strengths
- Technical Expertise:Utilizes advanced production technology and adheres strictly to quality management systems, ensuring high-performance, reliable products.
- Integrated Solutions:Offers a complete product portfolio and comprehensive support from design and R&D to sales and project guidance.
- Sustainability Alignment:Products support green building and sustainable infrastructure initiatives, in line with national environmental policies.
- Proven Track Record: Extensive successful applications in municipal and private sector projects demonstrate reliability and performance.
Zhongcai(Sancai) Pipe has 20 years of industry experience and serves over 500 customers worldwide. Its advantages include:
- Advanced production capacity: Automated production line with an annual output of over 100000 tons, meeting large-scale demand. R&D Strength: Collaborate with universities to continuously innovate products, such as anti-static PE pipes. Customer case: Successfully participated in the Asian municipal water supply project, with a customer satisfaction rate of 98%. Environmental Commitment: Use recyclable materials, reduce carbon footprint, and support green buildings.
- Strict quality control: Establish a sound quality management system, implement full process quality monitoring from raw material procurement to product delivery, and rigorously inspect every link to ensure reliable product quality.
- Rich industry experience: With years of deep cultivation in the pipe and fittings industry, we have accumulated rich project experience and successfully served numerous large-scale municipal, construction, industrial and other projects, winning widespread recognition and praise from customers.
