Reversible dirt separator Termojet Dn40 (1 1/2")

The Termojet DN40 angled magnetic dirt separator is designed for boiler rooms and technical spaces where installation space does not allow a straight separator to be fitted. The 90° angled connection eliminates the need for a straight pipe section. Flow capacity — 6.8 m³/h, the brass body withstands 110°C and 10 bar. The built-in neodymium magnetic rod captures magnetite Fe₃O₄ — the ferromagnetic ferrous sludge from the corrosion of steel and cast-iron components that a gravity separator cannot retain.

Technical Specifications

How It Works

The heat-transfer fluid enters the expanded chamber through the angled port — the flow velocity drops sharply. Non-magnetic particles: sand, rust, scale, oxides — settle to the bottom by gravity. In parallel, the neodymium rod in the chamber captures magnetite Fe₃O₄ — fine ferromagnetic particles circulating in suspension. This dual separation (gravitational and magnetic) occurs continuously, without any moving parts other than the drain valve. Maintenance: open the valve — drain the sludge; remove the rod — wipe off the black deposit — reinsert. Without shutting down the heating system.

Applications

• 40–80 kW boiler room in a built-in space. When the return pipeline runs along a wall or behind a manifold and there is no straight section for mounting a straight separator — the angled version solves the problem.
• Pump group or distribution manifold. The compact design and angled connection allow the separator to be integrated into an already completed installation without reworking the pipelines.
• Gas or pellet boiler 40–60 kW. DN40 and a flow capacity of 6.8 m³/h — the optimal combination for systems with a corresponding return pipeline diameter.
• Heat pump in a confined space. When the space around the heat pump is limited, the 90° angled connection allows a magnetic separator to be installed without reworking the existing pipeline. Learn more about protecting heat pump systems at tjheatpump.com.ua.
• Reconstruction or modernisation of a boiler room. When replacing a boiler or pump group, the angled separator easily integrates into the already installed pipeline without dismantling sections of the main line.

Advantages

• 90° angled connection — installation without a straight pipe section, in any confined boiler-room space.
• Dual separation — gravitational and magnetic: captures the full spectrum of contaminants, including magnetite.
• Removable neodymium rod — magnetite cleaning without disassembling the device, without draining the heat-transfer fluid.
• Drain without system shutdown — drain valve at the bottom for prompt removal of accumulated sludge.

Magnetic Separator and Heat Pump

A heat pump is the most technologically sensitive element of a modern heating system. Magnetite formed during the corrosion of steel and cast-iron circuit components accumulates in the narrow channels of the heat pump plate heat exchanger and gradually reduces its output. A conventional dirt separator does not retain magnetite — a neodymium magnetic rod is required. The angled DN40 is especially appropriate when the space around the heat pump is limited. Learn more about solutions for heat pumps at tjheatpump.com.ua.

Related Products

If installation space permits — consider the DN40 Dirt Separator with straight connection. For simultaneous removal of air and dirt, the DN40 Air and Dirt Separator is suitable. Full range — in the Termojet separator catalogue.

Frequently Asked Questions

What is the difference between the angled and straight DN40 separator?
The operating principle, chamber, neodymium rod and specifications (110°C, 10 bar, 6.8 m³/h) are identical. The difference is in the connection geometry: the straight version is installed in-line in a straight pipeline, the angled one — at a bend or in a corner where there is no room for a straight body.

Does the angled connection affect separation efficiency or pressure drop?
No. Hydraulic resistance and separation efficiency are determined by the chamber volume and the magnetic rod design, not by the orientation of the inlet port. The angled version has the same specifications as the straight DN40 separator.