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电泳槽阀门设计中英对照版

556 人参与  2012年01月30日 00:00  分类 : 电泳设备 电泳设备工艺  评论

Valves??????? ??? 阀

Eccentric plug, ball, and butterfly valves are all used in electrocoat systems. Materials of construction and configuration are important considerations for best service life. 在电泳系统中,偏心阀,球阀及蝶阀都有使用,其材料及结构对延长使用寿命很重要。 The wafers and shafts of butterfly valves should be fabricated only of 316 stainless steel. Some cast irons, especially nodular cast, have had poor service life. Teflon or EPDM should be used for valve seats. Faces of eccentric plug valves should be coated with teflon, acrylonitrile, butadiene, or Hycar-RS24 to prevent erosion of the plug face. Ball valves should be made from 316 stainless steel to minimize wear. 蝶阀的阀片及轴只能用316不锈钢制造。某些铸铁,特别是球铁寿命很短,阀座要用聚四氟乙烯制成。偏心阀的表面要涂以聚四氟乙烯,丙烯晴,丁二烯或合成橡胶-RS24以防止表面侵蚀。球阀要用316不锈钢制成以减少磨损。 Copper-, brass-, aluminum-, or zinc-coated components should not be used in electrocoat systems. Rapid dissolution of these metals caused by contact with cathodic paints will destroy the component and contaminate the paint. Valves should be installed as close as possible to "T" formations in piping to permit flushing of valve disks (see Figure 9). A "dead spot" is an area where un-agitated paint can gather, resulting in settling and causing an accumulation of pigment and dirt and valve plugging. A high-pressure flush line may be necessary to prevent this problem from occurring. 铜,黄铜,铝或镀锌组件不能用于电泳系统,这些金属与阴极电泳漆接触很快溶解,将导致组件损坏并污染槽液。在管路中,阀门要尽可能靠近“T”型结构安装,以使阀面得到冲刷。(见图9)。在“死区”搅拌不到的漆会沉积,导致沉淀,引起杂质堆积和阀门堵塞,为 防止这种问题的发生,安装一高压冲洗系统可能是必须的。 电泳槽阀门 Pressure Gauges??????????????????????????????????? 压力表 Proper placement of pressure gauges is vital to reduce blockage. The pressure gauge should be piped only from the top of the system line, and a valve should be installed between the system line and the pressure gauge. No horizontal or looped piping should be present which could promote settling and blockage. An alternative design incorporates a diaphragmed pipe flange which can eliminate settling and blockage problems. The Iso-Ring made by Ronningen-Petter is one such device.? Pressure gauges and diaphragms are normally filled with glycerine and Iso-Rings are filled with a combination of ethylene glycol and water.? Pressure gauges should be sized such that the normal operating pressure is mid range of the gauge. 压力表安置在合适的位置对减少其堵塞是及重要的。只有将其安装在系统管线的上端,而且在系统管线路和压力表之间要安装一个阀门,不能水平或环型连管,不然会引起沉淀和堵塞,可用一种在连接管边缘装一个膜片的设计,由Ronningen-Peter 制造的Iso-Ring就是这样一种仪表,由乙二醇的化合物和水组成。压力表应按通常的操作压力在中央有一个大小范围。
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