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Description
This LDPE (Low-Density Polyethylene) pipe is extruded from virgin polyethylene resin, formulated with less than 2% carbon black to enhance UV radiation resistance. Designed for agricultural irrigation applications, it serves as mainlines, submain lines, and distribution pipes in drip and sprinkler systems. All products comply with GB/T23241-2009 standards, with consistent material properties achieved through controlled manufacturing processes.
Custom Option | Details |
Custom diameters | Available upon request (outside standard range) |
Custom wall thickness | Different pressure ratings available |
Custom roll lengths | Any length from 100m to 2000m |
Custom colors | Black (standard), other colors available for large orders |
Coil packaging | Standard coils, shrink-wrapped for protection |
Special materials | PE alternatives upon request |
Note: Production can be tailored to customer-specified diameter, wall thickness, and roll length. Contact our sales team with your specifications for a quotation.
Technical Parameters
All parameters comply with GB/T23241-2009 standards.
Parameter | Value | Test Standard |
Elongation at break | ≥ 350% | GB/T 1040 |
Hydraulic test | 2.3 × working pressure | GB/T 6111 |
Oxidation induction time | ≥ 20 minutes | GB/T 17391 |
Carbon black content | < 2% | GB/T 13021 |
Material | LDPE (Low-Density Polyethylene) | - |
Size (mm) | Pressure Rating | Wall Thickness (mm) | Roll Length (m/roll) | Carton Size (cm) | G.W (Kgs) |
Φ16 | 0.25 MPa | 1.0 | 500 | Dn80×30 | 23 |
Φ16 | 0.40 MPa | 1.2 | 500 | Dn80×30 | 27 |
Diameter | Typical Application | Pressure Ratings Available |
16 mm | Final distribution pipe for drippers, drip arrows, micro sprinklers | 0.25 MPa, 0.40 MPa |
20 mm | Final distribution pipe, short branch lines | 0.25 MPa, 0.40 MPa |
25 mm | Branch lines, secondary distribution | 0.25 MPa, 0.40 MPa |
32 mm | Branch lines, submains | 0.25 MPa, 0.40 MPa |
40 mm | Mainlines, trunk lines | 0.25 MPa, 0.40 MPa |
50 mm+ | Mainlines, system headers | Custom |
Property | Value | Description |
Density | 0.92-0.93 g/cm³ | Lightweight, easy handling |
Tensile strength | ≥ 12 MPa | Suitable for pressurized systems |
Operating temperature | -20°C to +45°C | Suitable for most climates |
Coefficient of thermal expansion | 1.8 × 10⁻⁴ /°C | Allow for expansion in design |
Surface roughness | 0.01 mm | Smooth, low friction loss |
Product Features
The precision-extruded smooth inner surface creates low friction resistance to water flow, enabling longer lateral lengths and reducing pumping energy requirements. This hydraulic efficiency lowers long-term operational costs and allows for irrigation system designs with fewer mainlines.
The inherent flexibility of LDPE enables the pipe to bend and conform to terrain contours without kinking or stressing connections. This characteristic reduces the need for additional fittings in uneven fields, hillsides, or landscapes, accelerating installation speed.
Formulated to operate within a temperature range of -20°C to +45°C, the pipe maintains structural integrity without becoming brittle or excessively soft. Anti-aging additives and UV stabilizers protect the material from degradation caused by prolonged sun exposure, supporting a service life of 10+ years in field conditions.
Available in diameters from 16mm to 40mm and larger, with pressure ratings from 0.25MPa to 0.4MPa and above, the pipe can be matched to specific system requirements. Standard roll lengths of 500 meters reduce the number of field joints required, saving installation time and reducing potential leak points.
Product Uses
Larger diameter pipes (32mm, 40mm, and above) function as main transmission lines, carrying water from pumps, tanks, or valves to individual irrigation zones. Medium diameters (20mm, 25mm) serve as submain lines distributing water along crop rows, connecting to drip tape or laterals via bypass fittings. Small diameter pipes (16mm) act as final feed pipes for drippers and micro sprinklers, allowing precise emitter positioning.
Additional applications include greenhouse overhead misting lines, nursery container irrigation networks, and residential/commercial landscape irrigation systems. The pipe also supports non-agricultural uses such as water conservation projects and industrial cooling systems.
FAQ
LDPE is more flexible and softer than HDPE. LDPE is suitable for applications requiring flexibility, such as final distribution lines and emitter connections. HDPE is stiffer and stronger, typically used for high-pressure mainlines and buried applications.
Standard LDPE pipe is available in pressure ratings of 0.25 MPa (≈36 psi) and 0.40 MPa (≈58 psi). Higher pressure ratings are available for custom orders.
Yes, LDPE pipe is suitable for underground installation. For buried applications, select appropriate wall thickness for soil load and follow proper trenching practices. The pipe's flexibility helps withstand soil movement.
With <2% carbon black UV stabilization and controlled manufacturing, this LDPE pipe typically lasts 10+ years in outdoor agricultural applications. Actual service life depends on UV exposure intensity and local climate conditions.
