PVC Double Pipe Extrusion Line Project for Building Pipe Manufacturing in Burundi

In response to the growing demand for building pipeline systems in Burundi, a local pipe manufacturer has implemented a PVC Double Pipe Extrusion Line to improve production efficiency and ensure stable output for construction-related applications.

The project is technically supported by LANGBO Machinery, focusing on continuous manufacturing of dual PVC pipes used in residential and light infrastructure systems.

The production line is designed to support stable operation under long-cycle production conditions while maintaining consistent pipe geometry.

Burundi’s construction sector is gradually expanding, particularly in:

• Residential housing development
• Small-scale municipal drainage systems
• Electrical installation infrastructure
• Utility pipeline distribution

With increasing demand for PVC pipes in building applications, manufacturers are seeking equipment that can increase output without expanding factory footprint.

The double pipe extrusion system provides a practical solution for medium and small-diameter PVC pipe production.

Before introducing the new system, the manufacturer experienced several limitations:

• Uneven production output between single-line systems
• Dimensional variation during continuous operation
• Limited synchronization between extrusion and haul-off systems
• Reduced efficiency in small-diameter pipe production
• Inconsistent stability during long production cycles

These issues directly affected installation consistency in building pipeline applications.

The production line adopts a conical twin screw extruder to ensure stable PVC plasticization.

Key functions:

• Uniform melting of PVC material
• Stable extrusion pressure control
• Continuous material feeding for long production cycles

The die head is designed with two independent flow channels to produce two pipes simultaneously.

This structure ensures:

• Balanced melt distribution
• Consistent pipe diameter on both outputs
• Reduced pressure fluctuation during extrusion

After extrusion, both pipes pass through vacuum calibration and controlled cooling.

This system helps:

• Maintain stable pipe outer diameter
• Reduce shrinkage deformation
• Improve dimensional consistency in continuous production

The dual haul-off system ensures synchronized traction of both pipes.

It provides:

• Stable pulling speed control
• Accurate fixed-length cutting
• Continuous production capability

After installation and commissioning, supported by LANGBO Machinery technical guidance, the system achieved stable operation during continuous production.

Observed improvements include:

• More consistent output across both pipe channels
• Improved synchronization between extrusion and haul-off systems
• Reduced dimensional fluctuation during long production cycles
• Better suitability for building pipe applications
• Improved production stability for small infrastructure demand

The system now operates as part of the customer’s PVC pipe manufacturing line for construction applications in Burundi.

The PVC double pipes produced by this system are widely used in:

• Residential building water supply systems
• Small municipal drainage networks
• Electrical conduit installations
• Building utility pipeline systems
• Low-pressure fluid transport applications

These applications require stable pipe geometry to ensure proper installation and long-term reliability.

The implementation of the PVC Double Pipe Extrusion Line provides several key engineering advantages:

• Increased production capacity through dual-pipe output
• Stable dimensional control during continuous operation
• Improved synchronization between process stages
• Reduced production fluctuation under long cycles
• Enhanced adaptability for building pipe specifications

These improvements support growing infrastructure needs in Burundi’s construction sector.

This project demonstrates how a PVC Double Pipe Extrusion Line supported by LANGBO Machinery can improve production efficiency in building pipe manufacturing applications.

Through coordinated extrusion, dual-channel die design, vacuum calibration, and synchronized haul-off control, the system ensures stable twin-pipe output and continuous operation performance.

It provides a practical and scalable solution for PVC pipe manufacturers in emerging infrastructure markets such as Burundi.

Explore more PVC pipe extrusion solutions from LANGBO Machinery:

https://www.pvcpipeextrusionline.com/