进口先导式套筒调节阀 美国RETZ瑞茨

　　RETZ/我们一直致力于流体控制领域的持续创新，始于2005……

　　先导式套筒调节阀，采用大小阀芯先导式结构。先导式调节阀具有单独的压力平衡先导阀芯以其体积小、结构紧凑、密封效果好、切断能力高、适用范围广和使用寿命长等特点，在自动控制系统中得到越来越广泛的应用。在高温高压差的场合,即使阀座有微小泄漏也可引起汽蚀,长期冲刷阀芯和阀座,会导致阀内件损坏。因此,要求几乎无泄漏,完全密封,对此场合的阀门是非常重要的。常规做法是加大执行机构输出力提高密封等级retzPilot operated sleeve regulating valve adopts a pilot operated structure withlarge and small valve cores. Pilot operated control valves have a separatepressure balanced pilot valve core, which is increasingly widely used inautomatic control systems due to its small volume, compact structure, goodsealing effect, high cutting capacity, wide application range, and long servicelife. In situations of high temperature and high pressure difference, evensmall leakage of the valve seat can cause cavitation, and long-term flushing ofthe valve core and valve seat can lead to damage to the valve internals.Therefore, it is essential to have almost no leakage and complete sealing forvalves in this situation. The conventional approach is to increase the outputforce of the actuator and improve the sealing level

　　进口气动先导式套筒调节阀 电动先导式套筒调节阀产品特点：

　　先导式套筒调节阀流向为高进低出，相较普通套筒阀具有单独的压力平衡先导阀芯，该阀可作放空切断阀使用，尤其高温、高压和大口径要求切断的场合。

　　主要应用：对泄漏量要求较高的高温工况场合。

　　进口气动先导式套筒调节阀 电动先导式套筒调节阀选型参数 Selectionparameters

　　公称通径：NPS 11/2” ~24” (DN40~DN600)

　　公称压力：Class150~Class600(PN16~PN100)

　　温度范围：-40℃~540℃

　　材料范围：碳钢, 不锈钢, 双相不锈钢, Inconel, Monel,Hastelloy，Ti等

　　泄漏等级：ANSI V级

　　阀盖类型：伸长型

　　执行机构：气动薄膜式执行机构/电动执行机构

　　附件:阀门、空气过滤减压器、电磁阀、保位阀、行程开关、阀位传送器、手轮机构等