manifold Termojet with flow meters for 10 outlets, stainless steel

Termojet TJ-W manifold with 10 outlets — the central distribution unit of an underfloor heating system for large houses and commercial premises. Body made of stainless steel AISI 304, wall thickness 1.6 mm, profile DN40. Each of the 10 circuits is equipped with a flow meter 0–5 l/min for individual balancing. Main connection — G 1", circuits — G 3/4" Eurocone, spacing 50 mm. Unit length — 580 mm.

Technical Specifications

Operating Principle and Balancing of 10 Circuits

In a large house, underfloor heating loops vary in length: a 15 m² room requires a shorter circuit than a 40 m² living room. Without balancing, the shorter loops capture a larger share of the flow — some rooms overheat while others remain underheated. The TJ-W-10 flow meter on each of the 10 outlets allows setting a precise flow rate in each loop in the range 0–5 l/min. The installer reads the transparent rotameter and turns the regulating valve until all rooms reach the design flow rate. The return manifold with M30×1.5 sockets accepts thermal actuators for zone control via room thermostats.

Where It Is Used

• House 150–250 m². 10 circuits cover a large house — 6–8 rooms plus corridors and bathrooms. Each zone has an independent flow meter and thermal actuator.
• Floor-level distribution. One TJ-W-10 manifold per floor — instead of two smaller ones. Minimum connections, maximum reliability.
• System with heat pump. 10 circuits with low-temperature heat carrier 35–45°C — optimal load for the heat pump. Each circuit is balanced; the pump is not overloaded.
• Commercial premises. Offices, shops, production areas with underfloor heating over a large area.

Advantages

• Stainless steel AISI 304 — zero corrosion over the entire service life of the system, resistant to glycol and hard water.
• 10 independent flow meters — professional hydraulic balancing without expensive automatic inserts.
• G 3/4" Eurocone standard — direct connection of PE-RT 16×2 and PE-Xa pipe without reducers.
• M30×1.5 sockets — compatible with mass-market thermal actuators from any manufacturer.
• Ready-assembled kit — air vents, drain, check valves ready for installation.

Underfloor Heating and Heat Pump

A heat pump delivers maximum COP at a heat carrier temperature of 35–40°C. Ten underfloor heating circuits are the ideal load: a large heat-transfer surface at a low temperature, steady pump operation. The stainless steel AISI 304 of the TJ-W-10 manifold withstands operation with glycol heat carriers frequently used in heat pump systems. For more details — visit the Termojet heat pump website.

Frequently Asked Questions

Is a pump-mixing unit required for a 10-outlet manifold?
When operating from a boiler with a temperature above 55°C — yes, it is mandatory. The mixing unit for the manifold blends in cooled return water and reduces the supply temperature to 35–45°C. With a heat pump in low-temperature mode, the unit is needed for hydraulic separation of circuits.

Which manifold cabinet is suitable for 10 outlets?
Manifold cabinet No. 03 is designed for 8–10 outlets. For comparison — the manifold with valves for 10 outlets without flow meters costs less and is suitable for systems without balancing. Full range — in the Termojet underfloor heating system catalogue.