调节阀在管道中起可变阻力的作用。它改变工艺流体的紊流度或者在层流情况下提供一个压力降,压力降是由改变阀门阻力或“摩擦”所引起的。这一压力降低过程通常称为“节流”。对于气体,它接近于等温绝热状态,偏差取决于气体的非理想程度(焦耳一汤姆逊效应)。在液体的情况下,压力则为紊流或粘滞摩擦所消耗,这两种情况都把压力转化为热能,导致温度略为升高。在现代化工厂的自动控制中,调节阀起着十分重要的作用,这些工厂的生产取决于流动着的介质正确分配和控制。这些控制无论是能量的交换、压力的降低或者是简单的容器加料,都需要某些终控制元件去完成。手动调节阀:适用于工作压力 ≤1.6MPa、介质温度 ≤200℃(和 ≤2.5MPa、介质温度 ≤350℃)的蒸汽或热水管路上作为调节流量之用。按顺时针旋转手轮即可关闭手动调节阀,这时阀杆带动阀瓣下降,直使两锥形密封面接触达到严密将管路关闭为止。主要零件材料零件材料:阀体、阀盖、填料压盖、阀杆、阀瓣、密封圈、指示标、阀杆螺母、螺帽套材 料:灰铸铁、铸钢、不锈钢、不锈钢、黄铜
克罗森控制系统有限公司是一家集设计、研发、加工、销售、服务为一体综合型企业。公司是美国克罗森集团有限公司在华一授权代理的企业。公司紧抓消费的升级和经济结构转型发展契机,布局多元业务领域。目前逐渐打造成为涵盖机电抗震、流体控制阀门、能源环保、通用机械设备、仪器仪表等产业。Crosen Controls Co., Ltd. is a comprehensive enterprise integrating design, research and development, processing, sales and service. The company is the only authorized agent of Crosen Group Co., Ltd. in China. The company grasps the opportunity of consumption upgrading and economic restructuring, and lays out diversified business areas. At present, it has gradually become an industry covering mechanical and seismic resistance, fluid control valves, energy and environmental protection, general machinery and equipment, instruments and other industries. 美国克罗森集团总部位于美国科罗多拉州丹佛市。集团旗下经营:机电抗震解决方案、流体阀门解决方案、空气净化解决方案、能源环保管理解决方案、通用零部件、仪器仪表监测设备等领域。在多个国家均有生产基地,向**广大用户提供一系列产品及服务。CROSEN Group is headquartered in Denver, Colorado, USA. Group's operations: anti-seismic solutions, fluid valve solutions, air purification solutions, energy and environmental management solutions, general components, instrumentation monitoring equipment and other fields. There are production bases in many countries, providing a series of products and services to the vast number of users around the world.