译文：
散热器恒温阀（Radiator Thermostat，又称温控阀、恒温器等）安装在每台 散热器的进水管上，用户可根据对室温高低的要求，调节并设定室温。按其工作原理，恒温阀属于比例控制器，即根据室温与恒温阀设定值的偏差，比例地、平稳地打开或关闭阀门。阀门的开度保持在相当于需求负荷位置处，其供水量与室温保持稳定。相对于某一设定值时恒温阀从全开到全关位置的室温变化范围称之为恒温阀的比例带，通常比例带为0.5～2.0℃。 按设恒温阀的目地，是使用户可以自行调节室温，同时当室内有“自由热”时，恒温阀能自行调节进水量，保持室温恒定，不仅提高室内舒适度，而且节能。 散热器恒温阀实现了用户能自行调节室温，热量分配表配合热表，或一户为一个系统安置户用热表，可以推算出每户实际耗热量，这是按热量收费必不可少的设备。但对于双管系统来说，由于按设了散热器恒温阀，采暖系统呈现出变水量的特点。如果水泵运行工况不变，当系统中某些环路的恒温阀关小时，会引起一些环路上恒温阀承受的压差增高，恶化了控制性能；从另一方面来说，系统总水量需求减少，可以应用（变频）调速水泵节省水泵的电耗。 恒温阀工作原理 恒温阀的核心部件是传感器，即温包。根据温包位置区分，恒温控制器有温包内置和温包外置（远程式）两种形式，温度设置也有两种形式，可以按照其窗口显示来设定所要求的控制温度，并加以自动控制。温包内充有感温介质，能够感应环境温度，随感应温度的变化产生体积变化，带动调节阀阀芯产生位移，进而调节散热器的通过水量来改变散热器的散热量。当室温升高时，感温介质吸热膨胀，关小阀门的开度，减少了流入散热器的水量，降低散热量以控制室温。当室温降低时，感温介质放热收缩，阀芯被弹簧推回而使阀门开度变大，增加流经散热器水量，恢复室温恒温阀设定温度可以人为调节，恒温阀会按设定要求自动控制和调节散热器的热水供应。 散热器恒温阀的安装位置 散热器恒温阀安装在每台散热器的进水管上或分户采暖系统的总入口进水管上。散热器恒温阀的安装问题很重要：内置式传感器不主张垂直安装，因为阀体和表面管道的热效应也许会导致恒温控制器的错误动作，应确保恒温阀的传感器能够感应到室内环流空气的温度，不得被窗帘盒、暖气罩等覆盖。

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原文：
Thermostatic radiator valves (Radiator Thermostat, also known as the temperature control valve, thermostat, etc.) installed on each radiator inlet pipe, the user may be based on the requirements of high and low temperature, adjust and set at room temperature. According to their works, Thermostatic valves are proportional controller that, according to room temperature and thermostatic valve settings of the deviation, the ratio, the smooth open or close the valve. The valve opening position maintained at the equivalent load at the demand of its water supply and room temperature remained stable. Relative to a set value, thermostatic valve from fully open to fully closed position of the temperature range the ratio called the thermostatic valve zone, the proportion of bands is usually 0.5 ~ 2.0 ℃. Set thermostatic valve according to the head, is controlled so that users can self-adjust room temperature, while when the room is a "free heat", the thermostatic valve can be self-regulation into the water, maintaining a constant temperature, not only improve indoor comfort and energy efficiency. Radiator thermostatic valve enables users to self-adjust room temperature, the heat distribution of the table with the hot table, or a resettlement household as a system with hot table, you can figure out the actual heat consumption per household, which is essential to charge the device by the heat . But for two-pipe system, because according to set up radiator thermostatic valve, the heating system, showing a change of water characteristics. If the pump operating conditions remain unchanged, some of the loop when the system thermostat valve off hours, it will cause a number of loops on the thermostatic valve to withstand the pressure increased, the deterioration of control performance; from the other hand, the total system water demand reduction can be applied (frequency) Speed Pump pumps to save power consumption. Thermostatic Valve Works Thermostatic valve core component is the sensor, the temperature package. According to distinguish between temperature and package location, temperature controller and temperature pack Temperature pack built-in external (remote type) in two forms, the temperature settings, there are two forms that can be set in accordance with its window displays the required temperature control, and make automation. Filled bag felt warm temperature medium, is capable of sensing ambient temperature, with the temperature sensor produces volume change, driven generated displacement control valve spool, thus regulating the radiator through theradiator cooling water to change the amount. When the temperature rises, thermal expansion of dielectric absorption of heat, off a small valve opening, reducing the amount of water into the radiator, reducing the amount of heat to control the room temperature. When the temperature is lowered, thermal media release heat shrinkable, spool has been pushed back to spring Ershi larger valve opening to increase the amount of water flowing through the radiator, thermostatic valve set to resume room temperature, the temperature can be artificially adjusted thermostatic valve would be set by automatic control and regulation will require the supply of hot water radiator. Radiator thermostatic valve installation position Thermostatic radiator valves installed on each radiator inlet or household heating system's total imports into the water pipes. Radiator thermostatic valve installation issues are important: built-in sensors do not advocate a vertical installation, because of the heat pipe valve, and surface effects may lead to errors in temperature controller, action, should ensure that the thermostatic valve sensor is capable of sensing the temperature of the indoor air circulation shall not be Chuanglian He, heating cover, etc. coverage.

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