FIELD-PROVEN LARGE-DIAMETER FUSION
Built for the biggest pipeline challenges.
Explore real HDPE pipeline and fitting projects powered by Welping butt fusion machines from 1000mm to 2250mm.

PROVEN IN THE FIELD
Large-diameter experience you can see.
From desalination and wastewater treatment to municipal water supply and oversized fittings, these references show where alignment, clamping force and dependable hydraulic control matter most.
Stable alignment
Heavy-duty clamping structures help position oversized HDPE pipe accurately through the fusion cycle.
Field reliability
Hydraulic systems and robust frames are developed for demanding construction environments.
Custom engineering
Project-specific configurations extend beyond standard ranges to oversized fittings and 2250mm applications.
PROJECT REFERENCE LIBRARY
Nine projects. One standard of dependable fusion.
Select a continental project reference or continue scrolling to review every case.
Seawater desalination
OD 1600mm desalination pipeline installation
The WP1600A was supplied for on-site welding of OD 1600mm HDPE pipe in a seawater desalination project. Its heavy-duty frame and hydraulic control system supported stable alignment and repeatable fusion under real construction conditions.
- Equipment
- WP1600A
- Pipe size
- OD 1600mm
- Stable alignment for large pipe
- Heavy-duty hydraulic clamping
- Field-ready construction
- Infrastructure-grade reliability
Field installation was still in progress when this reference was prepared.
Wastewater treatment
Large-diameter wastewater pipeline construction
A WP1600A hydraulic butt fusion machine was delivered for a wastewater treatment project in Africa, supporting large-diameter HDPE pipe installation and an efficient on-site fusion workflow.
- Equipment
- WP1600A
- Pipe size
- OD 1600mm
- Built for demanding job sites
- Consistent hydraulic control
- Large-pipe positioning
- On-site fusion workflow

Seawater desalination
OD 1400mm desalination pipeline project
The WP1400A hydraulic butt fusion machine supported on-site welding of OD 1400mm HDPE pipes for a desalination pipeline project in Asia.
- Equipment
- WP1400A
- Pipe size
- OD 1400mm
- Large-diameter pipe capacity
- Secure clamping pressure
- Accurate end preparation
- Project-ready reliability

Seawater desalination
Desalination pipeline field welding
Welping supplied a WP1400A for large-diameter HDPE pipeline installation in Asia, enabling dependable field welding for a seawater desalination application.
- Equipment
- WP1400A
- Pipe size
- OD 1400mm
- Reliable pipe alignment
- Hydraulic operation
- Suitable for coastal projects
- Repeatable fusion cycle

Seawater desalination
WP1800A large pipeline solution
A WP1800A hydraulic butt fusion solution was supplied for large-diameter HDPE pipeline installation, extending Welping field capability to OD 1800mm pipe.
- Equipment
- WP1800A
- Pipe size
- OD 1800mm
- OD 1800mm capability
- Heavy structural design
- Controlled facing and heating
- Built for infrastructure work

Seawater desalination
Second-purchase WP2000A for water transmission
This WP2000A was the customer’s second purchase in 2025. The 2000mm machine was documented through production, inspection and export packing while the field project remained in progress.
- Equipment
- WP2000A
- Pipe size
- OD 2000mm
- Up to 2000mm welding capacity
- Factory inspection before shipment
- Professional export packing
- Repeat-customer confidence
Field installation was still in progress when this reference was prepared.
Oversized fittings fabrication
WP2250A customized for special HDPE fittings
Welping developed the WP2250A for an HDPE pipeline solution provider. The ultra-large machine was designed to process oversized and special-shaped fittings beyond standard pipeline applications.
- Equipment
- WP2250A
- Pipe size
- Up to 2250mm
- Customized 2250mm platform
- Special-shaped fitting support
- Project-specific engineering
- Ultra-large fabrication capability

Water supply
Municipal water supply pipeline installation
The WP1000A supported HDPE pipe installation across water supply projects in Asia and South America, serving municipal networks, transmission lines and other large infrastructure applications.
- Equipment
- WP1000A
- Pipe size
- OD 1000mm
- Up to 1000mm pipe
- Multi-site field deployment
- Municipal water applications
- Dependable hydraulic fusion

Water supply
OD 1200mm water supply installation
A WP1200A large-diameter butt fusion machine was used for HDPE pipeline installation in an African water supply project, supporting on-site work up to OD 1200mm.
- Equipment
- WP1200A
- Pipe size
- OD 1200mm
- Up to 1200mm pipe
- Water transmission application
- On-site joint preparation
- Field-proven workflow


FROM STANDARD TO CUSTOM
Scale the machine to the project.
Welping supports large-diameter applications from standard WP1000A and WP1200A platforms through engineered WP1800A, WP2000A and WP2250A configurations.
PROJECT PLANNING
Answers for large-diameter fusion projects.
What pipe sizes can Welping support?
Welping provides standard large-diameter platforms from 1000mm to 1600mm and project-specific solutions extending to 1800mm, 2000mm and 2250mm.
What information is needed for machine selection?
Share the pipe outside diameter, SDR or wall thickness, pipe material, fitting requirements, job-site conditions, power supply and delivery plan.
Are customized machines available?
Yes. Welping can engineer clamping, facing, heating and hydraulic configurations around oversized pipe or special-shaped HDPE fittings.
Which applications are represented here?
The featured references cover desalination, wastewater treatment, municipal water transmission and specialized fittings fabrication across continental regions.
READY FOR YOUR NEXT PIPELINE?
Bring us the diameter. We’ll engineer the solution.
Send your pipe range, application, site conditions and delivery target. A Welping technical-sales specialist will help match the right machine configuration.