Durable pipe made from unplasticized PVC for gravity-based drainage systems. Ideal for residential, commercial, and municipal use. Corrosion-resistant, lightweight, and easy to install with smooth interior for efficient water flow and reduced clogging.
The PVC-U Plain Drainage Pipe is a widely used solution for gravity-based drainage systems in residential, commercial, and municipal projects. Manufactured from unplasticized polyvinyl chloride (PVC-U), these pipes offer high strength, corrosion resistance, and long-term durability — while being lightweight and easy to install. This product is compatible with all standard drainage fittings and is available in a variety of diameters and wall thicknesses to suit different applications.
Key Features
Made from rigid, lead-free PVC-U material
High chemical and corrosion resistance — ideal for wastewater and sewer systems
Lightweight and easy to transport and install
Smooth inner surface improves flow and reduces clogging
Does not support combustion and resists biological growth
Excellent dimensional stability and structural rigidity
Long service life with minimal maintenance
Available Sizes & Standards
Outer diameters range: 50mm to 300mm or customized
Standard lengths: 4m or customized
Socket or plain-end options available
Complies with standards: GB/T 5836.1
Applications
Residential and commercial wastewater drainage
Underground sewer systems and vertical stack piping
Kitchen, bathroom, and balcony water discharge
Rainwater downpipes and vent piping
Industrial drainage systems (non-pressurized)
Certifications
ISO 9001 – Quality management certified
CE Certified – European conformity
GB/T 5836.1 – Chinese national drainage pipe standard
Lead-free, safe for indoor and underground installations
Packaging & Delivery
Pipes bundled with protective film or straps
End caps available to prevent debris during transport
Custom logo printing available on pipe surface
Supplied in containers or by truck for domestic/export delivery
Export & Market Position
This PVC-U drainage pipe is available across all brands under the Gongchi Group – including Gongchi, Huangpin, JiuSheng, Dishui, BenSu, and Shuanggu. Each brand offers the same base quality with slight variations in positioning, from premium construction projects to cost-effective mass installations. Widely exported to Asia, Africa, the Middle East, and beyond, it is trusted for both public and private sector drainage infrastructure.
