Manifold Termojet in thermal insulation 4+1 up+down M42UD125(200)

Manifold K42VN.125(200) — a Termojet unit with thermal insulation for 4+1 circuits with combined upward and downward outlets. It distributes heat carrier from the boiler to five consumers with different parameters and handles 72 kW at ΔT=10 °C and 145 kW at ΔT=20 °C.

Operating principle — a double header: supply and return lines in one body, heat carrier from the heat generator (1¼″ connection) branches out to circuits with 1″ outlets. The combined outlet arrangement allows pump groups to be distributed over two tiers — above and below the manifold — and noticeably shortens pipe runs even in a compact boiler room. Centre-to-centre distance between ports — 125 mm, the standard for Termojet pump groups.

Application scenarios: a house with underfloor heating, radiators, a DHW boiler and ventilation; multi-circuit boiler rooms, including low-temperature systems with a heat pump where several circuits are fed from one source — see Termojet heat pumps. With several pump circuits the system requires hydraulic separation — this is provided by the hydraulic separator GS-26 1¼″ with the same connection size as the boiler connection.

Advantages of the Termojet manifold:

• 4+1 outlets in two directions — maximum circuits on minimum wall space;
• 125 mm standard — pump groups mount without adapters;
• thermal insulation and wall mounting brackets included;
• own manufacturing in Ukraine, warranty and stock availability.

Technical specifications: number of outlets — 4+1 (upward + downward), capacity 72 kW at ΔT=10 °C and 145 kW at ΔT=20 °C, maximum flow rate Gmax 7.2 m³/h, boiler connection — 1¼″, heating circuit connections — 1″, centre-to-centre distance — 125 mm.

For fewer circuits, see the manifold K22VN.125 for 2+1 circuits or the full Termojet manifold catalogue.

Frequently asked questions

Why outlets both upward and downward?
To distribute pump groups over two tiers: some circuits go upward, some go downward. This saves wall space and pipe length in the boiler room.

Is a hydraulic separator required?
Yes, with several pump circuits hydraulic separation is mandatory — install the hydraulic separator GS-26 1¼″ before the manifold, or choose a KGS-series manifold with an integrated separator.