VPWS 450
Ø 200 - 450 mm
In Stock
High-Efficiency Automatic Butt Fusion for Large-Scale Pipelines
Product Description
The VPWS 450 is a compact, high-efficiency automatic butt fusion machine engineered to deliver consistent, certified quality for large-scale Water Infrastructure Solutions, covering pipe diameters from 200mm to 450mm. Its core value proposition is the seamless fusion of German engineering with advanced automation features, giving project engineers and site managers confidence in the long-term durability of their systems. The powerful electrohydraulic control and precise thermal system guarantee strict adherence to industry standards like DVS and ISO, directly mitigating the high cost and reputational damage associated with weld failures. This machine is a testament to Väli’s commitment to precision and partnership, ensuring critical projects are completed right the first time – “Welding. Together.”
Operating on a robust 380V industrial current, the VPWS 450 is built for demanding site conditions. Its integrated process automation, including the electronic countdown timer, minimizes process variability and maximizes operational consistency, which is vital for achieving uniform quality across extensive pipeline networks.
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Technical Data
The VPWS 450 is a compact and efficient automatic HDPE butt fusion machine for welding thermoplastic pipes with diameters from 200mm to 450mm. Its design combines German engineering principles with advanced automation features to meet the quality and durability standards required for large-scale Water Infrastructure Solutions.
| Specification | Value |
| Model | VPWS 450 |
| Pipe Welding Ranges | 200, 225, 250, 280, 315, 355, 400, 450 |
| Working Voltage | 380V, 3P, 50/60 Hz |
| Heating Plate Max. Temp | 270°C |
| Deviation in Heating Plate Surface Temperature | <±7°C |
| Pressure Adjustment Ranges | 0-8 Mpa |
| Heating Plate Power | 5.38KW |
| Planning Tool Power | 1.5KW |
| Hydraulic Unit Power | 1.5KW |
| Total Power | 8.38KW |

Features
The VPWS 450 is engineered for operational reliability and the consistent production of high-quality welds in demanding field environments, ensuring superior project outcomes.
- Versatile Welding Range: Accommodates pipe diameters from 200mm to 450mm, compatible with High-Density Polyethylene (HDPE), PE, Polypropylene (PP), and PVDF. This range makes it ideal for major pipelines, from gas distribution to municipal sanitary installations.
- Certified Thermal System: The removable, PTFE-coated heating plate features electronic temperature control, maintaining a tight deviation of less than ±7°C up to 270°C. This consistency is fundamental for achieving a reliable, homogenous fusion zone, critical for durable welds.
- Precision Electrohydraulic Control Unit: This system provides fine-tuned pressure regulation throughout the welding process. It ensures the uniform application of force, which is essential for achieving high joint integrity and eliminating process deviations.
- Standards-Compliant Joint Preparation: The removable electric facing tool prepares pipe ends by creating clean, smooth, and parallel surfaces. This preparation is non-negotiable for achieving optimal material fusion and long-term performance of the piping system.
- Integrated Process Automation: The electronic countdown timer automates the management of heating and cooling times. This feature eliminates guesswork and ensures every weld adheres precisely to the specified parameters, boosting overall site efficiency.
- Industrial Power Specifications: Operates at 380V (3-phase, 50/60 Hz), providing the necessary output and reliability for continuous use in large-scale industrial site conditions.
Applications
The VPWS 450 is designed for scenarios where precision, efficiency, and reliability are critical for the success of large-scale infrastructure projects, including those requiring adherence to gas distribution standards.
- Water Supply and Distribution Networks: Essential for connecting major potable water lines, where certified, leak-proof joints are paramount for public safety and compliance.
- Municipal Sewage and Wastewater Systems: Delivers the robust joint integrity required to prevent infiltration and exfiltration in large-diameter municipal infrastructure.
- Industrial Pressure Pipelines: Provides dependable performance for transporting various fluids and chemicals, ensuring the necessary structural integrity for high-pressure operations.
- Large-Scale Irrigation Systems: Used for assembling efficient and long-lasting agricultural irrigation systems that require dependable pipeline connections in varying terrains.
Accessories List

Electric Hoist
For Lifting and Handling Facing Tool and Heating Mirror

LDU Data Logger
For Monitoring, Detecting, and Recording Welding Parameters

Flanges Holder
Stub End Gripping Equipment for Short Spigot Flanges

Trolley
For Easy Moveability











