FRAENKISCHE ROHRWERKE Furowell NW350/800 Foundation Pipe, Black, 6 m, PE-HD, SN4 29510350

With a nominal width of 350 mm and a double-wall corrugated design, the Furowell NW350/800 foundation pipe delivers reliable airflow for ground heat exchangers and foundation ventilation systems. Its smooth inner wall optimizes flow with minimal pressure loss, while the black PE-HD construction ensures long-term durability in buried installations.

Overview

The FRAENKISCHE ROHRWERKE Furowell NW350/800 is a high-performance foundation pipe designed for ground heat exchanger and foundation air supply/exhaust applications. Manufactured from high-density polyethylene (PE-HD), it features a double-wall corrugated exterior with a smooth interior, providing an excellent balance of structural strength and hydraulic efficiency. With a ring stiffness of SN 4, it withstands typical soil loads, and its socket connection with sealing ring ensures a secure, leak-free joint.

What stands out

• Double-wall corrugated structure with smooth inner wall for low pressure loss
• Ring stiffness SN 4 for reliable buried performance
• Socket connection with sealing ring for quick and secure installation
• UV-resistant black PE-HD material suitable for outdoor exposure
• Compliant with DIN EN 13476-3 for quality assurance

Technical details

• Nominal width: 350 mm
• Outer diameter: approx. 390 mm
• Inner diameter: approx. 350 mm
• Length: 6000 mm (6 m)
• Material: PE-HD (Polyethylene High Density)
• Ring stiffness: SN 4 (kN/m²)
• Color: Black
• Temperature resistance: -25°C to +60°C
• Connection type: Socket with sealing ring
• Application: Ground heat exchangers, foundation air supply/exhaust

Our verdict

The Furowell NW350/800 is a robust and efficient solution for foundation ventilation and ground heat exchange systems. Its corrugated design and high-quality PE-HD material ensure long service life, while the smooth inner wall keeps airflow resistance low. Ideal for professional installers seeking a reliable, standards-compliant pipe.