Fernox - TF1 28mm Sigma HP Filter with Valves

Fernox TF1 Sigma HP Filter – 28mm with Valves

The Fernox TF1 Sigma HP Filter 28mm (with valves) is a high-performance, precision-engineered in-line system filter specifically designed for Air and Ground Source Heat Pump systems. Constructed from a high-strength, glass-reinforced engineering polymer, it offers excellent hydrolysis resistance and durability, making it ideal for renewable heating applications. The filter utilises unique Hydronic Particle Separation (HPS) technology and a powerful neodymium magnet to capture both magnetic and non-magnetic debris, protecting the heat pump and ensuring system efficiency. Suitable for installation in horizontal, vertical, or 45° pipework orientations, it is supplied with full-bore 28mm valves to ensure unrestricted flow.

Key Features

• Designed for Air and Ground Source Heat Pump systems
• High-strength, glass-reinforced engineering polymer construction
• Captures both magnetic and non-magnetic debris
• Hydronic Particle Separation (HPS) technology
• Full-bore 28mm valves included – no restriction to flow
• Fits horizontal, vertical, or 45° pipework orientations
• Easy, mess-free cleaning via drain valve
• Compatible with glycol and heating system additives (up to 50%)
• Max flow rate: 80 L/min (suitable for high-flow heat pump circuits)
• Max working pressure: 5 bar
• Max working temperature: 100°C
• 1-year manufacturer’s warranty (T&Cs apply)

Technical Specifications