Air and dirt separator Termojet Dn50 (2")

The Termojet TJVT6G50 combined separator is a 2-in-1 device for large-scale heating systems: boiler rooms of public buildings, industrial premises, and multi-apartment buildings. A flow capacity of 10.1 m³/h at DN50 (2") allows servicing a system with boilers of combined output 80–150 kW and above. A single unit simultaneously removes air microbubbles and mechanical dirt particles — without stopping the system for maintenance.

Technical Specifications

How It Works

The large chamber volume of the DN50 separator ensures a sharp deceleration of the flow — significantly more effective than in smaller sizes. A coalescent insert of welded copper wires collects microbubbles: they merge into larger bubbles and are discharged through the automatic air vent at the top. Simultaneously, rust, sand, and sludge particles settle in the lower chamber — the accumulated sediment is drained through the blowdown valve in 30 seconds without stopping the boiler and pumps.

Where and How It Is Used

• Boiler rooms of commercial and industrial facilities. Office buildings, shopping centers, production workshops with high-capacity heating systems — DN50 provides sufficient flow capacity without restricting the heat-carrier flow rate.
• Cascade boiler rooms. Two or more boilers connected in cascade — a single DN50 separator on the common manifold cleans the heat carrier for all circuits simultaneously.
• Systems with large-volume buffer tanks. In schemes with a heat accumulator of 1,000–3,000 l the heat carrier circulates in large volumes — the DN50 separator processes the entire volume evenly.
• Systems with high-capacity heat pumps. When a heat pump is present, a magnetic dirt separator is additionally recommended to protect its heat exchanger from magnetite. More details at tjheatpump.com.ua.
• Size comparison: for lower-capacity systems, a DN50 air separator and a DN50 dirt separator are available separately — if different installation points are required.

Advantages of Termojet TJVT6G50

• High flow capacity of 10.1 m³/h — without restricting flow even in large systems with powerful pumps.
• 2-in-1 in a large size: instead of two separate large units with their flanges and fittings — one compact body with threaded connection G2".
• Pressurised dirt drain without stopping the system — critically important for continuously operating facilities.
• Research-proven: simultaneous removal of air and dirt from the heat carrier provides up to 13% fuel savings — a significant effect at large consumption volumes.

Frequently Asked Questions

Is DN50 suitable for a private house?
DN50 is designed for systems with a heat-carrier flow rate of approximately 10 m³/h and corresponds to boilers with an output of 80 kW and above. For a private house with a boiler up to 30–40 kW, DN20 or DN25 will be optimal — a smaller size, lower price, and the same cleaning efficiency.

How to choose between a combined and two separate separators for a boiler room?
If it is possible to install one unit — the combined DN50 is simpler and cheaper to install. Two separate units are advisable when the air separator is required directly after the boiler (the hottest supply point) and the dirt separator — on the return pipeline before the boiler: this arrangement gives maximum efficiency of each device in its place.