HERZ TS underfloor heating manifold 1" × G3/4", 0–3 l/min, 4 circuits, 1863204

HERZ underfloor heating manifold 1" × G3/4", 0–3 l/min, 4 circuits, 1863204

HERZ 1 8632 04 / 1863204 is a professional DN25 stainless-steel manifold set for 4 heating circuits, designed primarily for underfloor, wall and ceiling radiant-heating systems.

The supply manifold incorporates four adjustable flow meters with a 0–3 l/min range, allowing the required heating-medium flow to be individually balanced for each circuit.

The return manifold is equipped with thermostatic valve inserts with M28 × 1.5 threads. Compatible HERZ electrothermal actuators can be fitted for individual room or zone control.

Both manifold bars incorporate air vents and filling/draining valves. Mounting brackets with integrated sound-insulating inserts are included.

The main heating-system connection is a G1" female thread, while each of the four heating circuits uses a G3/4" male connection with conical sealing.

The manifold body is made from X5 CrNi 18 10 stainless steel. Valve components are brass according to EN 12164, seals are EPDM and springs are stainless steel X7 CrNiAl 17 7.

For the version equipped with flow meters, HERZ specifies a maximum operating pressure of 6 bar, a test pressure of 10 bar at +20 °C and an operating-temperature range of +2 to +70 °C.

Suitable heating medium is heating water according to ÖNORM H5195 or VDI 2035. Ethylene- or propylene-glycol mixtures with water in concentrations of 25–50% by volume may also be used according to the fluid manufacturer's requirements.

The 4-circuit version has an installation length of 294 mm. Overall height is 333.6 mm, while the centre distance between the supply and return manifolds is 200 mm.

HERZ specifies manifold cabinet 1 8569 10 for this 4-circuit size. Pipe adapters, actuators and main shut-off valves are selected separately according to the installation.

HERZ 1863204 provides durable stainless-steel construction, accurate hydraulic balancing and straightforward automation for a professional four-circuit underfloor heating installation.

Key advantages

• Designed for 4 heating circuits.
• DN25 / 1" stainless-steel construction.
• Four 0–3 l/min flow meters.
• Individual hydraulic balancing of each circuit.
• M28 × 1.5 thermostatic valve inserts.
• Compatible with HERZ electrothermal actuators.
• Integrated air vents.
• Integrated filling and draining valves.
• Mounting brackets with sound insulation included.
• G1" main connection.
• G3/4" circuit connections.
• Maximum operating pressure 6 bar.
• Operating temperature +2...+70 °C.

Technical information