手动阀VREL

调节 对蒸汽

现代发电厂对水和蒸汽样品进行化学分析，需要对流量和压力进行精确控制。然而，高压降低的需求可能会带来采样问题。获得专利的Sentry VREL是一种专门设计的阀门，可以解决独特的高压采样问题。“哨兵”VREL由两个不锈钢管连接到一个大管或枪管。锥形杆组件插入筒体的精密孔中。高压流体进入，流过一个杆，旋转并流过另一个杆，然后流出。压降是插入筒内的棒长度的函数。在层流条件下，压力平稳降低，通过不连续的压力下降，最大限度地减少任何组件的分解。通过旋转旋钮外部控制杆的位置，样品流动时可以调节。如果发生堵塞，棒可以缩回，这样系统压力就可以吹穿固体物质。 Adjustable rod-in-tube type design allows for variable pressure drop and flow control The VREL allows precise control of flow and pressure without valve erosion or fluid dissociation All wetted parts are fabricated from 316 stainless steel Rated to 5000 psig at 300ºF (345 barg at 149ºC), and 7803 psig (538 bar) for supercritical power plant applications The VREL is cleanable in place, "in situ", by retracting the rods without disconnecting or isolating the sample line Maximum Process Pressure - 5000 psig at 300°F (345 barg at 149°C) Process Connections - 1/4 in OD Tube Wetted Materials - 316 SS, PEEK