CLA-VAL 流量控制阀/电子流量阀/组合流量压

 CLA-VAL/40-01,340-02流量控制阀
能精准控制管道中的流量,适用于SCADA电子控制系统,实现远程控制.
实时监控供水管网系统.防止水资源浪费
能组成多功能控制(压力和流量控制)

CLA-VAL流量阀描述如下:
Multi-Functional Capability
• Accurate and Immediate Control
• Includes Orifice Plate with Holder
• Optional Check Feature
• Easily Adjustable Controls
The Cla-Val Model 49-01/649-01 Rate of Flow and Pressure Reducing
Valve automatically reduces a higher inlet pressure to a steady lower
downstream pressure regardless of changing flow rate and/or varying
inlet pressure, as long as the flow rate is below a preset maximum. It
also prevents excessive flow by limiting flow to a preselected maximum
rate.
This valve is a hydraulically operated, pilot controlled diaphragm valve.
The pilot system includes a direct acting pressure reducing pilot and a
rate of flow differential control. The pressure reducing pilot is responsive
to slight variations in downstream pressure and immediately controls
the main valve to maintain the desired line pressure.
The rate of flow control responds to the differential pressure produced
across an orifice plate in the main line. Accurate control is assured as
very small changes in the controlling differential pressure produce
immediate corrective action by the main valve.
If the check feature option is added and a pressure reversal occurs,
the downstream pressure is admitted into the main valve cover chamber
and the valve closes to prevent return flow.

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