22mm zone valve
The zone valve is usually driven by an electric actuator and can automatically open or close by receiving a signal from a thermostat. When the valve is open, cold or hot water is allowed to enter the fan coil or radiator to adjust the temperature of the room; when the temperature reaches the set value, the thermostat will command the valve to close and stop the water flow, ensuring energy saving and efficient operation of the system.
This zone valve has a compact structure and is easy to install. It is usually equipped with a quick-install connection port for easy integration with the pipe system. It also has reliable sealing performance, effectively prevents leakage, and is durable and suitable for long-term use. The valve can not only be controlled by a manual operating lever, but also can be seamlessly integrated with the automation system to achieve remote control and automatic management. It is a key component in modern heating and cooling systems.
Product parameters
●Valve body material: forged brass
●Valve stem material: stainless steel
●Seal material: EPDM
●Working medium: cold/hot water
●Fluid temperature: 5~95℃
●Pressure: 1.6MPa
●Ambient temperature: 0~65℃ Maximum relative humidity is non-condensing
●Travel time: 11~15 seconds
●Motor torque: >800gf.cm
Technical Parameters
| Ordering model | Product model | Valve type | Diameter | Connection method | Kv value | Maximum closing pressure difference kPa |
Dimensions | ||
| L | W | H | |||||||
| 12613 | DDF-K-H215.88*DFQ-HA1-220 | 2 port | 15.88 | welding | 3 | 80 | 79 | 21 | 25 |
| 12614 | DDF-K-H222.2DFQ-HA1-220 | 2 port | 22.2 | welding | 3 | 80 | 89 | 21 | 25 |
| 12615 | DDF-K-H228.6*DFQ-HA1-220 | 2 port | 28.6 | welding | 3 | 60 | 92 | 21 | 25 |
| Note: The above table is the commonly used recommended models, please consult for details. | |||||||||
About our company
Zhejiang Hengsen Industrial Group Co., Ltd. was established in 1988 and is a manufacturer specializing in the production of copper fittings, HVAC fittings and air conditioning accessories in Zhejiang Province. Since its establishment, we have won a good reputation for our high-quality workforce and produced first-class quality products with great potential and strong technology. We use the most advanced technology and precision special machines to produce products and have obtained ISO9001 certification. At present, we have more than 500 special products and more than 3,000 specifications such as "Hengsen" brand copper elbows, two-way, three-way, electric valves, HVAC accessories, etc.
FAQ
Q1.How do I know if my zone valve is faulty?
Do you have hot water and no heating, or do you only have heating and no hot water? If your boiler is working nicely, but you have a problem with either the hot water or the heating not working, it could be your zone valve that is malfunctioning.
Q2.What types of fluids are suitable for this valve?
22mm zone valves are usually used to control the flow of hot and cold water, suitable for cooling water in central air-conditioning systems, hot water in heating systems, and clean water in general water supply systems. For chemical media or other special liquids, valves made of special materials need to be selected.
Q3.Should zone valves be on return or supply?
In most installations, the zone valves are in the returns, where the water is cooler. The cooler temperatures are easier on the valves. It has been the practice of some to place them in the supply using a manifold just above the boiler; this is often in conjunction with the "pumping away" concept.
Q4.Where should zone valves be placed?
All station outlets/inlets shall be supplied through a zone valve, which shall be placed as follows: It is installed so that a wall intervenes between the valve and the outlets/inlets that it controls. It is readily operable from a standing position. It is installed where it is visible and accessible at all times.
Q5.How to integrate 22mm zone valves with automation systems?
It can be integrated with automation systems through electric actuators, receiving signals from thermostats or intelligent control systems to achieve remote automatic control. It can automatically adjust water flow according to system settings, optimize energy efficiency and improve comfort.
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