Product Overview and Technical Features
150mm PVC pipe is a high-performance drainage pipe made of polyvinyl chloride resin as the main raw material through extrusion process. This specification of pipe has both moderate flow capacity and convenient construction characteristics, making it an ideal choice for municipal engineering, building drainage and agricultural irrigation systems.
Main technical parameters:
Nominal diameter: 150mm (actual outer diameter 160mm)
Ring stiffness grade: SN4-SN8 (4-8kN/m²)
Working pressure: 0.6-1.6MPa
Standard length: 6m/root
Service life: ≥50 years
Advantages and characteristics
1. Corrosion resistance
Can withstand acid, alkali, salt and most chemical media, with a service life of more than 50 years, much higher than metal pipes.
2. Lightweight and high strength
The density is only 1/5 of that of cast iron pipes, but the ring stiffness can reach SN8 or above, and the pressure bearing capacity is between 0.6-1.6MPa.
3. Low fluid resistance
The inner wall is smooth (roughness coefficient 0.009), and the flow rate is 30% higher than that of concrete pipes of the same diameter.
4. Environmental protection and energy saving
The production energy consumption is only 30% of that of steel pipes, and it can be recycled.
Application scenarios
1. Municipal drainage system
Application scenarios:
Urban rainwater pipe network branch
Sewage collection system
Road drainage facilities
Technical points:
Deep burial requirement: ≥0.8m (under the roadway)
Slope setting: 1%-3%
Interface treatment: rubber ring socket connection (compression rate 30%-40%)
Backfill specification: layered compaction, compaction degree ≥90%
Typical case:
A drainage renovation project in a district of Hangzhou City uses 150mm PVC-U solid wall pipes to replace the original concrete pipes, which increases construction efficiency by 40% and reduces project costs by 25%.
2. Building drainage system
Application:
High-rise building drainage riser
Basement water collection system
Roof rainwater discharge
Special treatment:
Pressure relief device at the bottom of high-rise building
Fireproof casing installed at the place where the floor is crossed
Core foam pipe is used in noise-sensitive areas
3. Agricultural irrigation system
Configuration:
Main pipeline: 150mm PVC pressure pipe (0.8MPa)
Branch pipeline: 90mm PVC pipe
Supporting equipment: solenoid valve, filter, exhaust valve
Water-saving benefits:
Compared with earth canal water supply, the water-saving rate is more than 40%, and the irrigation uniformity is increased to 85%.
Key installation technical specifications
Trench preparation
Excavation width should be pipe diameter + 300mm (e.g. 150mm pipe requires 450mm wide groove)
10cm sand cushion layer laid on the base, compaction degree ≥90%
Connection method
Adhesive connection: Use TH-925 special glue, and complete the connection within 20 seconds after coating
Rubber ring socket: Check the compression rate of the rubber ring (30%-40% is preferred)
Backfill requirements
Backfill in layers (each layer ≤30cm), mechanical rolling is prohibited within 50cm of the top of the pipe.
Mainstream market standards and prices
International standards: ISO 4435 (buried drainage pipes), ASTM D3034 (pressure pipes)
Domestic standards: GB/T 10002.1-2020 (water supply), GB/T 5836.1-2018 (drainage)
Price reference:
| Type | Wall Thickness (mm) | Unit Price (RMB/meter) |
| Standard Drainage Pipe | 3.2 | 45-60 |
| Reinforced Pressure Pipe | 4.8 | 80-120 |
Solutions to common problems
1. Interface leakage
Mostly caused by displacement of the rubber ring, special sealant can be injected to remedy the problem.
2. Winter brittle cracking
When the construction environment is below 5°C, low-temperature toughness formula pipes (such as PVC-M) should be used.
3. Third-party damage
It is recommended to lay a warning tape 30cm from the top of the pipe and use a metal detector for positioning.
150mm PVC pipes are gradually replacing traditional building materials with their comprehensive performance advantages. This solution can ensure the reliable operation of the drainage system for more than 50 years by optimizing material selection, construction technology and maintenance management, and provide economical and efficient drainage solutions for various engineering projects.
