行业新闻

原文
DJF1 valve works D-JF1 valve from the valve body, valve, valve seat, piston, valve, adjustable screw, accumulator, guide sleeve, pressure ring, filters and other components. Seat and the piston is sliding up and down. D-JF1 valve works: the use of throttle valve and the seat of the gap, the output pressure is lower than the input pressure; while the output pressure feedback, acting on the piston, the gas spring force and the formation of dynamic balance, automatic control valve the gap between the core and valve seat, so that the output pressure constant. In the course of their work, the fluid pressure changes, it will instantly change the stress state of the piston, the piston was forced down. Suffered together always up spool, the spool with the piston at the same time making the lift until it reaches a new equilibrium position, thereby maintaining the value of the constant voltage regulator. Accumulator pre-charge within a certain pressure of nitrogen gas springs for use. An adjustment screw to change the accumulator pressure to achieve the D-JF1 pressure regulating valve. Slowly open the inlet side of the screw, high pressure fluid into the lower part of accumulator, the nitrogen is compressed, the pressure increased, the piston down, the valve gap increases, the throttle weakened, export pressure; the contrary, on the liquid side of the screw, then reduce the liquid, pressure drop, move the piston, the outlet pressure decreases.
原文来自：http://www.jianyafa.org

是由上海一环流体控制设备有限公司提供的阀门新闻，中文译文仅供参考，以下提供站内导航搜索：

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译文：
D-JF1减压阀由阀体、阀芯、阀座、活塞、安全阀、调节螺钉、蓄能器、导向套、承压环、过滤器等组成。阀座和活塞则上下滑动。D-JF1减压阀的工作原理：利用阀芯和阀座的间隙节流，使输出压力低于输入压力；同时输出压力反馈，作用在活塞上，与气体弹簧力形成动态平衡，自动调节阀芯和阀座间的间隙，使输出压力保持恒定。在工作过程中，出液压力变化时，将瞬间改变活塞的受力状态，活塞被迫升降。阀芯所受合力总是向上，使得阀芯随活塞同时升降，直到达到一个新的平衡位置，从而保持调压值的恒定。蓄能器内预充一定压力的氮气，作气体弹簧用。利用调节螺钉改变蓄能器压力以实现对D-JF1减压阀的压力调节。缓慢开启进液侧螺钉，高压液体进入蓄能器下部，氮气被压缩，压力增高，活塞下移，阀缝增大，节流作用减弱，出口压力增大；反之，开启出液侧螺钉，则液体减少，压力下降，活塞上移，出口压力减小。

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