Grundfos Withdrawable Injection Unit with Integrated Ball Valve for Dosing Systems

The Grundfos withdrawable injection unit range is designed for accurate, reliable, and safe chemical injection into pressurised water and process systems. Featuring an integrated non-return ball valve and withdrawable quill design, these injection units allow operators to inspect, clean, or service the injection point without shutting down or draining the pipeline, significantly reducing maintenance downtime.

Manufactured from chemically resistant PVC materials, these injection units are suitable for a wide range of industrial and water treatment chemicals including chlorine, acids, alkalis, disinfectants, coagulants, and fertilisers. The integrated ball valve helps prevent process backflow into the dosing line while maintaining stable and accurate chemical injection performance.

Designed for compatibility with Grundfos dosing pumps and chemical dosing systems, the withdrawable injection units improve chemical dispersion and mixing efficiency by injecting chemicals directly into the centre of the process flow. Suitable for low, medium, and high-flow dosing applications, this range is commonly used in water treatment plants, wastewater systems, irrigation fertigation systems, cooling towers, industrial processing, and commercial water infrastructure.

FEATURES

• Withdrawable injection quill design
• Integrated non-return ball valve
• Allows servicing without draining the pipeline
• Durable chemically resistant PVC construction
• Prevents backflow into dosing system
• Improves chemical mixing and dispersion
• Suitable for aggressive chemical applications
• Compatible with Grundfos dosing pumps
• Suitable for water treatment and industrial dosing systems
• Available for low, medium, and high-flow dosing applications

APPLICATIONS

• Water treatment systems
• Wastewater treatment plants
• Irrigation fertigation systems
• Cooling tower treatment
• Chlorination systems
• pH correction systems
• Industrial process dosing
• Chemical transfer systems
• Commercial and municipal water system

Sub Variants