Flexible Perforated Drainage Pipe for Road & Bridge Drainage Systems

The flexible perforated drainage pipe is an efficient permeable drainage solution widely used in road and bridge projects. The main function of this system is to quickly drain the water that seeps through the asphalt concrete layer, thereby reducing the impact of moisture on the pavement structure and extending its service life. Globally, this system is widely adopted due to its outstanding performance.

A coiled flexible perforated drainage pipe placed on a table

Feature

High-performance material. Made of 304 stainless steel, it offers excellent corrosion resistance, oxidation resistance, high mechanical strength and toughness.
Spring-type structure. This endows the pipe with higher water collection capacity and water conduction efficiency. It is also easier to install, especially suitable for areas with complex bends or irregular layouts.
Strong temperature adaptability. It can maintain structural integrity and performance stability under significant thermal variations, resisting leaks or fractures caused by thermal expansion and contraction.
Extremely high compressive strength. It exceeds 20 MPa, capable of withstanding heavy external loads without permanent deformation or rupture.

Specification

Material: 304 stainless steel
Length: standard 50 m, customizable
Allowable diameter error (%): ±3
Pipe compressive strength (MPa): ≥ 20
High temperature resistance (240 °C): Up to 30 minutes

Flexible perforated drainage pipe drawing

Table 1: Flexible Perforated Drainage Pipe Specifications
Model	I.D. (mm)	O.D. (mm)	Perforation Diameter (mm)	Material	L (m)	Allowable Diameter Error (%)	Pipe Compressive Strength (MPa)	High Temperature Resistance (240 °C)
FPDP-13	10	13	1.8	304	50	±3	≥ 20	Up to 30 minutes
FPDP-18	15	18	1.8	304	50
FPDP-23	20	23	1.8	304	50
FPDP-28	25	28	1.8	304	50
FPDP-55	50	55	1.8	304	20
Note: Customized production can be carried out according to customer requirements.

Application