manifold Termojet with valves for 12 outlets, stainless steel

The Termojet 12-outlet manifold with ball valves is a solution for large underfloor heating systems where quick shut-off control of each circuit is required without precise hydraulic balancing. Stainless steel AISI 304, shut-off valves on 12 outlets, connection G 1" / G 3/4" Eurocone, 50 mm spacing, manifold length 680 mm. Maximum pressure 10 bar, maximum temperature 110°C.

Technical Specifications

Operating Principle

The manifold distributes hot heat carrier from the main line to 12 floor circuits. The ball valve turns 90° — the circuit is either fully open or fully closed. This approach is indispensable at facilities where some rooms are shut off seasonally: utility rooms, terraces, garages. The M30×1.5 sockets allow thermal actuators to be installed and zone automation to be connected at any time without replacing the manifold.

Application Scenarios

• Cottage or townhouse with 12 zones and equal loop lengths. Loops are designed identically — flow balancing is not required, valves provide full control.
• Commercial premises with staged zone commissioning. During construction, floors are commissioned one by one — unused circuits are closed with valves until the screed in each zone is complete.
• Hotel or hostel. Rooms without guests are shut off for winter or the season — the valve is closed without disconnecting the entire system.
• Base system for future automation. M30×1.5 thermal actuators can be added at any stage; the manifold remains unchanged.

Advantages

• Stainless steel AISI 304 — corrosion resistance in any heat carrier; service life 25+ years with proper preservation.
• 12 ball valves — instant opening or closing of any circuit with a single movement.
• M30×1.5 — standard mounting size for any mass-market thermal actuator; zone automation connected without adapters.
• G 3/4" Eurocone — connection of PE-RT 16×2 pipe via the 16×2 Eurocone fitting; demountable connection without welding.
• Lower cost compared to the flowmeter version — a justified choice where balancing is not required.

Underfloor Heating and Heat Pump

A heat pump with a supply temperature of 35–45°C paired with underfloor heating delivers maximum COP: every 5°C above the optimum takes away 10–15% efficiency. The Termojet 12-outlet manifold with valves is rated for this range with a fourfold temperature safety margin. If the system has loops of different lengths — choose the 12-outlet manifold with flowmeters for precise hydraulic balancing. For more information about large heating systems with a heat pump — visit the Termojet heat pump website.

Frequently Asked Questions

How does a manifold with valves differ from a manifold with flowmeters for a large system?
Valves only allow a circuit to be opened or closed — without measuring or regulating flow. If the loops are of different lengths (a typical situation for a large house), shorter circuits will «pull» more flow and the floor in longer rooms will be cooler. For such systems we recommend the 12-outlet manifold with flowmeters. If the loops are identical — a manifold with valves is fully sufficient.

Which cabinet is suitable for a 12-outlet manifold with valves?
For concealed installation the manifold cabinet No. 04 (795×575×110 mm) is suitable. If a mixing unit for the manifold is to be installed nearby — consider the wider cabinet No. 05 or placing the unit separately.