进口可调式活塞式减压阀(德国OLES奥莱斯)
【进口可调式活塞式减压阀】详细说明：
过滤活塞式可调减压阀是一种通过调节来实现减压的智能调节阀门，可以对整个管道的减压比例及减压的长度进行调节，可以实现的定比调节功能。其在项目当中运行过程是：当阀门从进口端给水时，水流过针阀进入主阀控制室，出口压力通过导管作用到导阀上。当出口压力高于导阀弹簧设定值时，导阀关闭。控制室停止排水，此时主阀控制室内压力升高并关闭主阀，出口压力不再升高。当阀门出口压力降到导阀弹簧设定压力时，导阀开启，控制室向下游排水。由于导阀系统排水量大于针阀的进水量，主阀控制室压力下降。进口压力使主阀开启。在稳定状态下，控制室进水、排水相同，主阀开度不变，出口压力稳定。出口压力不因进口压力变化而改变，亦不因主阀出口流量的变化而改变，安全可靠地将出口压力维持在设定值上。该阀减压精确，性能稳定、安全可靠、安装调节方便，使用寿命长。可用于生活给水、消防系统及工业给水系统。
The filter piston type adjustable pressure relief valve is an intelligent regulating valve which can realize pressure relief by adjusting. It can adjust the pressure relief ratio and length of the whole pipeline and realize the function of proportional regulation. Its operation process in the project is: when the valve feeds water from the inlet end, water flows through the needle valve into the main valve control room, and the outlet pressure acts on the guide valve through the conduit. When the outlet pressure is higher than the set value of the pilot valve spring, the pilot valve closes. When the control chamber stops draining, the main valve controls the pressure in the chamber to rise and closes the main valve, and the outlet pressure does not rise any more. When the outlet pressure of the valve drops to the set pressure of the guide spring, the guide valve opens and the control chamber drains downstream. The pressure of the main valve control chamber decreases because the drainage of the pilot valve system is larger than that of the needle valve. The inlet pressure opens the main valve. In the stable state, the control room has the same water intake and drainage, the main valve opening remains unchanged, and the outlet pressure is stable. The outlet pressure does not change with the change of the inlet pressure, nor does it change with the change of the outlet flow rate of the main valve. The outlet pressure is maintained at the set value safely and reliably. The valve has the advantages of accurate pressure reduction, stable performance, safety and reliability, convenient installation and adjustment, and long service life. It can be used in domestic water supply, fire fighting system and industrial water supply system.
【进口可调式活塞式减压阀】特点：
1.毕托管向极敏感的限流导阀传递压信号, 无孔板孔口节流, 无压力损失, 节能.
2.限流导阀中有极灵敏的弹簧对流量进行调节, 操作简单而且准确.
3.Y形宽体阀腔,流阻小.抗汽蚀性强.
日介质自身压力自控, 无需外供驱动源.
5.主阀体的进口法兰与阀座之间设了过滤器, 节省投资成本和安装费用.
6.内外表面均喷浍环保涂层.确保产品的防府蚀及安全性.
【进口可调式活塞式减压阀】工作原理;
当管道从进水端给水时，水流过针阀进入主阀控制室，出口压力通过导管作用到导阀上，当出口压力高于导阀设定值时，导阀关闭，控制室停止排水，此时主阀控制室内压力升高并关闭主阀，出口压力不再升高。
当出口压力降到导阀设定压力时导阀开启，控制室向下游排水。由于导阀的排水量大于针阀的进水量，主阀控制室压力下降，进口压力使主阀开启。稳定状态下，控制室进水、排水相同，开度不变，出口压力不变。
调节导阀弹簧即可设定出口压力。
1、压力控制稳定可靠。导阀、主阀连续工作，下游压力变化连续、平稳，受进口压力影响小。
2、操作方便。工作压力调定后，当上游压力或流量变动时主阀自动调节，稳定了下游压力。
3、阀体采用了全通道、直流式、流线型设计。水力损失小，节能效果好。
