由天津市自动化仪表四厂研制开发的《超微小流量调节阀》,经过专家鉴定认为,该产品在结构设计、工艺结构上具有独特性、先进性和使用性.它的研制成功,可产生较大社会效益.这种调节阀在国内处于领先地位,与国外产品相比,达到了当代国际同类产品水平.其主要技术指标为:信号压力:20～100MPa;公称压力(PM):5MPa;接管形式:法蓝或螺纹(G21/2”、G31/4”);额定行程:10mm; 法蓝(DN):15mm额定流量系数(KV)0.0005、0.001、0.0015、0.002、0.003、0.004、0.006、0.008 Developed by the Tianjin Automation Instrumentation Factory 4 “ultra-micro flow control valve”, after expert assessment that the product structure, process structure with uniqueness, advanced and usability. Its successful development, can produce The social benefits of this larger valve in the country in a leading position, compared with foreign products, reached the level of contemporary international similar products.The main technical indicators are: signal pressure: 20 ~ 100MPa; nominal pressure (PM): 5MPa; Take over the form: France blue or thread (G21 / 2 “, G31 / 4”); Rated stroke: 10mm; France blue (DN): 15mm Rated flow coefficient (KV) 0.0005,0.001,0.0015,0.002,0.003,0.004,0.006 , 0.008