3 zone valve
A 3 zone valve is a key component in heating and cooling systems, designed to regulate the flow of hot or cold water to three separate zones within a building. It allows independent temperature control for each area, enhancing comfort and optimizing energy use. These valves are widely used in residential, commercial, and industrial applications, particularly in hydronic heating, radiant floor systems, and zoned HVAC systems.

●Valve body material: forged brass
●Valve stem material: brass
●Seal material: Ethylene Propylene Diene Monomer(EPDM)
●Working medium: cold/hot water
●Fluid temperature: 5~95℃
●Pressure: 1.6MPa
●Ambient temperature: 0~65C Maximum relative humidity is non-condensing
●Travel time: 11~15 seconds
●Motor torque: >800gf.cm
Technical Parameters
| Ordering model | Product model | Valve type | Diameter | Thread size | Kv value | Maximum closing pressure difference kPa |
Dimensions | ||
| L | W | H | |||||||
| 12000 | DDF-X-215*DFQ-XA1-220 | 2 port | 15 | G12 | 2.2 | 250 | 81 | 21 | 19 |
| 12001 | DDF-X-220*DFQ-XA1-220 | 2 port | 20 | G3/4 | 2.6 | 250 | 81 | 21 | 19 |
| 12003 | DDF-X-225*DFQ-XA1-220 | 2 port | 25 | G1 | 3.2 | 250 | 88 | 25 | 23 |
| 12008 | DDF-X-315*DFQ-XA1-220 | 3 port | 15 | G12 | 2.2 | 250 | 81 | 35 | 19 |
| 12009 | DDF-X-320*DFQ-XA1-220 | 3 port | 20 | G3/4 | 2.6 | 250 | 81 | 35 | 19 |
| 12010 | DDF-X-325*DFQ-XA1-220 | 3 port | 25 | G1 | 3.2 | 250 | 92 | 42 | 23 |
| Note: The above table is the commonly used recommended models, please consult for details. | |||||||||
Advantages and features
independent zone control
The main advantage of a 3-zone valve is its ability to independently manage the flow of water or other fluids to three different zones. This allows heating or cooling according to the specific requirements of each area, ensuring optimal comfort without wasting energy.
energy efficiency
It minimizes unnecessary energy consumption. This targeted approach results in significant savings on energy bills, making it an environmentally friendly and budget-friendly solution.
Durable construction
Zone 3 valves provide long-lasting performance and resistance to wear and corrosion. Advanced sealing mechanism prevents leakage and ensures long, reliable operation.
FAQ
Q: How does it improve energy efficiency?
A: It minimizes energy waste by directing heating or cooling only to the zones that need it, reducing unnecessary usage and lowering energy costs.
Q: Is it compatible with all HVAC systems?
A: It is compatible with many systems, including hydronic heating, radiant floor heating, and zoned forced-air systems, as long as the system's flow and pressure requirements match its specifications.
Q: How does it operate?
A: It uses pathways that open or close to regulate fluid flow. Depending on the model, it can be manually operated, motorized, or controlled thermostatically.
Q: What makes it a cost-effective choice?
A: It reduces energy consumption by targeting specific zones, which lowers utility bills over time and eliminates the need to heat or cool unoccupied areas.
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