The MENRED YI.A manifold distributes supply water to underfloor heating circuits and collects the return flow. Built-in supply-side balancing valves allow manual circuit adjustment, while return-side shut-off valves can operate with compatible thermal actuators controlled by room thermostats.
The series includes 2–8 circuit models. Its anti-scaling valve actuation design is intended to reduce valve sticking associated with scale buildup. Appropriate system water quality management and maintenance remain important.
| Parameter | Specification |
|---|---|
| Material | Brass |
| Nominal pressure | PN10 |
| Medium temperature | 5–95°C |
| Main manifold size | DN25 |
| Outlet spacing | 50 mm |
| Main connections | 1-inch male thread at the inlet end; 1-inch female thread at the terminal end |
| Actuator mounting thread | M30 × 1.5 mm |
| Valve stroke | 3 mm |
| Circuit configurations | 2–8 circuits |
| Model | Circuits | Width A (mm) | Width with terminal parts (mm) |
|---|---|---|---|
| YI.A2 | 2 | 122 | 171 |
| YI.A3 | 3 | 172 | 221 |
| YI.A4 | 4 | 222 | 271 |
| YI.A5 | 5 | 272 | 321 |
| YI.A6 | 6 | 322 | 371 |
| YI.A7 | 7 | 372 | 421 |
| YI.A8 | 8 | 422 | 471 |
Widths are based on the configurations in the YI.A datasheet. Confirm the complete assembly dimensions and allow space for the selected valves, fittings, actuators and pipe connections before installation.
The datasheet illustration identifies thermal actuators, an H106-Yi automatic air vent, an H105-Yi three-port end fitting, an H107 drain valve and an H25-P pressure gauge. Confirm which components are included in the quoted configuration.
Straight and angled ball valves are optional and ordered separately. Select pipe connectors according to the heating pipe dimensions.
Select the circuit count according to the heating system design. Check pipe connector dimensions, actuator compatibility and installation space before ordering. A matching mounting thread alone does not establish actuator compatibility; valve geometry and operating travel must also be checked.
Compare the YI.N brass manifold or explore MENRED’s manifolds and wiring centers for related options. Installation, pressure testing and circuit balancing should be carried out by a qualified heating professional.
Send MENRED your required circuit count, quantity, pipe dimensions and control requirements.
Contact MENREDBoth series use brass manifolds with manual balancing valves. YI.A additionally specifies an anti-scaling valve actuation design intended to reduce valve sticking.
No. It does not replace appropriate system water quality management, inspection or maintenance.
The YI.A series includes 2–8 circuit models, from YI.A2 to YI.A8.
Confirm the complete supply configuration in the quotation. Straight and angled ball valves are optional and ordered separately.

Since its inception in 1995, Zhejiang Menred Comfort System Co., Ltd., affectionately known as Menred, has firmly established itself as a beacon of innovation and excellence in the global manufacturing industry. Specializing in 'radiant heating and cooling, ventilation, water purification, and smart home' systems, Menred is not only a trusted partner of the National Key Laboratory of 'Future Building' but also proudly serves as a certified factory for Electrolux AB, a leading name in the global appliance arena. At 'MENRED Comfort Home', we have ambitiously evolved from mere temperature control solutions to comprehensive systematic air conditioning systems. Our focus is not just on cost-effective solutions but on pioneering energy efficiency, putting the user's needs at the heart of our product development. Our passion extends to creating sublime comfort home product solutions, spearheading the innovative development of green building equipment, and delving into the engineering application and research of Building Integrated Photovoltaic (BIPV) and energy storage solutions. Within the esteemed Menred group, we proudly house 4 National High-tech Enterprises alongside 3 enterprises recognized for High-quality Technological Advancement. These enterprises have not only been conferred with the prestigious national title of Technologically Advanced Little Giant' but also have been distinguished as Service Oriented Manufacturing Demonstration Enterprises, signifying our commitment to excellence and innovation.



