The Fernox TF1 Sigma HP Filter 28mm With Valves is a high-performance system filter specifically designed to protect air source and ground source heat pump systems from circulating debris and contaminants.
Using Fernox's unique filtration technology, the TF1 Sigma HP Filter is designed to capture a wide range of system debris, including magnetic and non-magnetic contaminants, even at the high flow rates typical of heat pump installations. It is designed to maintain low pressure loss and help the heat pump operate efficiently.
The filter is supplied with 28mm full-bore valves as standard, helping to minimise flow restriction through the filter assembly. It can be installed horizontally or vertically and is ideally fitted on the return pipe to the heat pump. Where space is restricted, it can also be installed up to 45° from vertical.
Cleaning is quick and straightforward through the drain valve, without needing to dismantle the filter or shut down the system. The sealed filter design also reduces ongoing maintenance requirements.
The TF1 Sigma HP is compatible with water, inhibited glycol solutions and Fernox system additives, with a maximum glycol concentration of 50%.