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随着国家供热改革和热计量的推进与深入,近年来热量表在全国范围得到较大发展与广泛应用。热量表检定装置随之大量制造并投入运行,其上所使用的阀门的选型、使用和安装等问题需引起注意,以免影响装置的正常运行,给检定工作带来不便。热量表检定装置中,一般通过的介质为热水,使用最高温度大约为95℃。一、热量表检定装置的阀门要求1.密封性能阀门的密封性能是指阀门各密封部位阻止介质
With the national heating reform and heat measurement to promote and deepen in recent years, the heat meter in the country have been more developed and widely used. The heat meter verification device will then be mass-produced and put into operation. Problems such as the selection, use and installation of the valves used on the heat meter need attention so as to avoid affecting the normal operation of the device and inconvenience in the verification work. Calorimeter test device, the general medium for the hot water, the maximum temperature of about 95 ℃. First, the calorimeter test device requirements of the valve 1. Sealing performance The sealing performance of the valve refers to the sealing area of the valve to prevent the media