This valve system is installed, consideration may be given in the first group of the front radiator inlet valve installed in the vicinity of Far, Far EasTone will valve temperature control sensors to be placed in the main room, such as master bedroom, living room . The drawbacks of this arrangement is to move through the valve, will lead to heating the entire room changes in water flow, and valve signal acquisition is only room for one of the signal, then there will be other room temperature fluctuations and precision can not be effective regulation. In this way could also be considered in the first group to install high-quality front-end radiator, opening with the linear relationship between flow control valve manually through the control valve regulating the system of rough. Radiator arrangement such as "standards" are not allowed, we do not recommend using this approach.
2) the level of single-tube by leaps and bounds: the level of single-tube by leaps and bounds in recent years the application of a more interior arrangement has the merit of each radiator can be accurate for temperature control, adapted to the user's personalized home request , also in line with the "household metering, sub-room temperature" of the policy requirements. At the same time as some high-temperature hot water (not through the radiator heat exchanger) flows to the next group of radiators, the next group to raise the water temperature of the radiator to ensure the quality of the heating.
Relative to other household level for the indoor ring arrangement, by leaps and bounds in single-tube is a relatively simple to adapt to a wide range of layout. In specific applications, the valve should be used in different products (including manual control valve). Its also a very wide range of application forms:
a, Two-valve control type across Canada in this way a relatively simple structure, low cost. However, in practical applications, there are some problems. Many of its projects, because of indiscriminate use of high resistance of the two-valve, causing the radiator into the water is too small. Some works, some of the wrong usage, in order to meet the needs of the radiator into the water, across the tube had to install a regulator valve to increase the resistance across the tube part. Even with the low resistance to the two pass radiator valves should also factor into the calculation of flow. Radiator inlet channel coefficient is part of the radiator and across the tube part of the ratio of channel resistance. Increase in the level across the single-tube system, the resistance ratio of more than 30% in general, to ensure the water flow of the radiator. However, this calculation more complicated.
B, type of bypass valve
In order to adapt to the indoor levels are one-pipe system plus applications across a number of manufacturers introduced a special kind of bypass valve, the valve to the radiator such access (including valve) and a combination of bypass slip overall, and slip into a bypass resistance adjustable bypass valve. The advantage of simplifying the calculation and installation, and as a result of an adjustable bypass valve on the system to adapt to a wide range of specific conditions in accordance with a separate regulation.
Such a bypass valve can also be calculated into the flow coefficient of the radiator. In some projects have already been adopted gradually.
C, other special type of valve
Currently on the market there were a lot of new heat sink, in order to meet these new radiator, all kinds of special type of valve products came into being.
3) the level of twin-tube type.
Household level may also be a twin-tube radiators in each inlet valve is installed to carry out sub-room temperature control. The use of such arrangement, heating of good quality can be multiple sets of radiator series of different radiator valves regulate the system through the impact of small, but regardless of the fraction or fraction of the level of twin-tube arrangement, the interior are more complicated pipe layout, the overall decoration of the room, looking a certain effect.
And vertical layout of such a dual-track system, the greater the resistance the end, the system the smaller the volatility of its impact, it should choose the high resistance of the radiator valves.
4) a twin-tube radiation.
Such arrangements have also been known as the "octopus-style" layout, but also the level of belonging to the indoor area of a twin-tube. Installed at the entrance points in each household / watershed, and sub / catchment一环讲each device connected to a radiator. The advantage of flexible arrangements, which will help to carry out at room temperature, but more complex arrangement of pipes, cost over the previous several high indoor layout. In such a system should also refer to two-pipe system using high-resistance valve, if the use of reliable manual control valve can be installed in the inlet end of each radiator can be installed in each sub / Set Water carrying out centralized control.
In August 2003, the MOC issued a "Circular on the work of the urban heating system reform guidance" clearly stipulates that in the future, new public buildings and town houses, where the use of central heating facilities must be designed, installed splitting with temperature measurement and heating system control functions, and implementation of household energy use metering and charging of the new approach. Into the 21st century, the broad masses of the people on energy saving and thermal comfort of the continually increasing demands from household metering, at room temperature has been the policy of the people. Radiator valves will also be more widely used. However, the valve can not be a simple matter of a loaded, need to go through detailed and in-depth understanding of computing products, the use of different systems for different types of valves, at the same time when the installation and post-testing should also be carried out with the design and manufacturer good communication, in accordance with appropriate adjustments to the specific circumstances in order to achieve, the purpose of fair use.
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